Le problème est que j'ai besoin de savoir si c'est la version 3.5 SP 1. Environment.Version()ne fait que revenir 2.0.50727.3053.
J'ai trouvé cette solution , mais je pense que cela prendra beaucoup plus de temps que ça en vaut la peine, donc je cherche une solution plus simple. C'est possible?
2.0même si elle fonctionne avec 3.5
Réponses:
Quelque chose comme ça devrait le faire. Saisissez simplement la valeur du registre
Pour .NET 1-4 :
Frameworkest la version installée la plus élevée, SPest le Service Pack pour cette version.
RegistryKey installed_versions = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP");
string[] version_names = installed_versions.GetSubKeyNames();
//version names start with 'v', eg, 'v3.5' which needs to be trimmed off before conversion
double Framework = Convert.ToDouble(version_names[version_names.Length - 1].Remove(0, 1), CultureInfo.InvariantCulture);
int SP = Convert.ToInt32(installed_versions.OpenSubKey(version_names[version_names.Length - 1]).GetValue("SP", 0));
Pour .NET 4.5+ (à partir de la documentation officielle ):
using System;
using Microsoft.Win32;
...
private static void Get45or451FromRegistry()
{
using (RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32).OpenSubKey("SOFTWARE\\Microsoft\\NET Framework Setup\\NDP\\v4\\Full\\")) {
int releaseKey = Convert.ToInt32(ndpKey.GetValue("Release"));
if (true) {
Console.WriteLine("Version: " + CheckFor45DotVersion(releaseKey));
}
}
}
...
// Checking the version using >= will enable forward compatibility,
// however you should always compile your code on newer versions of
// the framework to ensure your app works the same.
private static string CheckFor45DotVersion(int releaseKey)
{
if (releaseKey >= 461808) {
return "4.7.2 or later";
}
if (releaseKey >= 461308) {
return "4.7.1 or later";
}
if (releaseKey >= 460798) {
return "4.7 or later";
}
if (releaseKey >= 394802) {
return "4.6.2 or later";
}
if (releaseKey >= 394254) {
return "4.6.1 or later";
}
if (releaseKey >= 393295) {
return "4.6 or later";
}
if (releaseKey >= 393273) {
return "4.6 RC or later";
}
if ((releaseKey >= 379893)) {
return "4.5.2 or later";
}
if ((releaseKey >= 378675)) {
return "4.5.1 or later";
}
if ((releaseKey >= 378389)) {
return "4.5 or later";
}
// This line should never execute. A non-null release key should mean
// that 4.5 or later is installed.
return "No 4.5 or later version detected";
}
if (true)vérification? Pourquoi pas simplement l'appel à Console.WriteLine()?
Je ne sais pas pourquoi personne a suggéré de suivre l' avis officiel de Microsoft droit ici .
C'est le code qu'ils recommandent. Bien sûr, c'est moche, mais ça marche.
private static void GetVersionFromRegistry()
{
// Opens the registry key for the .NET Framework entry.
using (RegistryKey ndpKey =
RegistryKey.OpenRemoteBaseKey(RegistryHive.LocalMachine, "").
OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\"))
{
// As an alternative, if you know the computers you will query are running .NET Framework 4.5
// or later, you can use:
// using (RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine,
// RegistryView.Registry32).OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\"))
foreach (string versionKeyName in ndpKey.GetSubKeyNames())
{
if (versionKeyName.StartsWith("v"))
{
RegistryKey versionKey = ndpKey.OpenSubKey(versionKeyName);
string name = (string)versionKey.GetValue("Version", "");
string sp = versionKey.GetValue("SP", "").ToString();
string install = versionKey.GetValue("Install", "").ToString();
if (install == "") //no install info, must be later.
Console.WriteLine(versionKeyName + " " + name);
else
{
if (sp != "" && install == "1")
{
Console.WriteLine(versionKeyName + " " + name + " SP" + sp);
}
}
if (name != "")
{
continue;
}
foreach (string subKeyName in versionKey.GetSubKeyNames())
{
RegistryKey subKey = versionKey.OpenSubKey(subKeyName);
name = (string)subKey.GetValue("Version", "");
if (name != "")
sp = subKey.GetValue("SP", "").ToString();
install = subKey.GetValue("Install", "").ToString();
if (install == "") //no install info, must be later.
Console.WriteLine(versionKeyName + " " + name);
else
{
if (sp != "" && install == "1")
{
Console.WriteLine(" " + subKeyName + " " + name + " SP" + sp);
}
else if (install == "1")
{
Console.WriteLine(" " + subKeyName + " " + name);
}
}
}
}
}
}
}
// Checking the version using >= will enable forward compatibility,
// however you should always compile your code on newer versions of
// the framework to ensure your app works the same.
private static string CheckFor45DotVersion(int releaseKey)
{
if (releaseKey >= 393295) {
return "4.6 or later";
}
if ((releaseKey >= 379893)) {
return "4.5.2 or later";
}
if ((releaseKey >= 378675)) {
return "4.5.1 or later";
}
if ((releaseKey >= 378389)) {
return "4.5 or later";
}
// This line should never execute. A non-null release key should mean
// that 4.5 or later is installed.
return "No 4.5 or later version detected";
}
private static void Get45or451FromRegistry()
{
using (RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32).OpenSubKey("SOFTWARE\\Microsoft\\NET Framework Setup\\NDP\\v4\\Full\\")) {
if (ndpKey != null && ndpKey.GetValue("Release") != null) {
Console.WriteLine("Version: " + CheckFor45DotVersion((int) ndpKey.GetValue("Release")));
}
else {
Console.WriteLine("Version 4.5 or later is not detected.");
}
}
}
updatespour NET Framework 4.7 et NET Framework 4.7.1 ? Pas 4.7 ou version ultérieure. Ouais 4.7 ou 4.7.1.
Une méthode alternative où aucun droit d'accès au registre n'est nécessaire consiste à vérifier l'existence de classes introduites dans des mises à jour spécifiques du framework.
private static bool Is46Installed()
{
// API changes in 4.6: https://github.com/Microsoft/dotnet/blob/master/releases/net46/dotnet46-api-changes.md
return Type.GetType("System.AppContext, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089", false) != null;
}
private static bool Is461Installed()
{
// API changes in 4.6.1: https://github.com/Microsoft/dotnet/blob/master/releases/net461/dotnet461-api-changes.md
return Type.GetType("System.Data.SqlClient.SqlColumnEncryptionCngProvider, System.Data, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089", false) != null;
}
private static bool Is462Installed()
{
// API changes in 4.6.2: https://github.com/Microsoft/dotnet/blob/master/releases/net462/dotnet462-api-changes.md
return Type.GetType("System.Security.Cryptography.AesCng, System.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089", false) != null;
}
private static bool Is47Installed()
{
// API changes in 4.7: https://github.com/Microsoft/dotnet/blob/master/releases/net47/dotnet47-api-changes.md
return Type.GetType("System.Web.Caching.CacheInsertOptions, System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", false) != null;
}
Environment.Version()donne la bonne réponse à une question différente. La même version du CLR est utilisée dans .NET 2.0, 3 et 3.5. Je suppose que vous pouvez vérifier le GAC pour les bibliothèques qui ont été ajoutées dans chacune de ces versions ultérieures.
2.0même si elle fonctionne avec 3.5
Auparavant , c'était facile, mais Microsoft a décidé d'apporter un changement radical: avant la version 4.5, chaque version de .NET résidait dans son propre répertoire ci-dessous C:\Windows\Microsoft.NET\Framework(sous v1.0.3705, v1.1.4322, v2.0.50727, v3.0, v3.5- répertoires et v4.0.30319).
Depuis la version 4.5, cela a été changé: chaque version de .NET (ie 4.5.x, 4.6.x, 4.7.x, 4.8.x, ...) est installée dans le même sous v4.0.30319- répertoire - vous n'êtes donc plus en mesure de vérifiez la version .NET installée en examinant Microsoft.NET\Framework.
Pour vérifier la version .NET, Microsoft a fourni deux exemples de scripts différents en fonction de la version .NET qui est vérifiée, mais je n'aime pas avoir deux scripts C # différents pour cela. J'ai donc essayé de les combiner en un seul, voici le script que GetDotNetVersion.csj'ai créé (et l'ai mis à jour pour le framework 4.7.1):
using System;
using Microsoft.Win32;
public class GetDotNetVersion
{
public static void Main(string[] args)
{
Console.WriteLine((args != null && args.Length > 0)
? "Command line arguments: " + string.Join(",", args)
: "");
string maxDotNetVersion = GetVersionFromRegistry();
if (String.Compare(maxDotNetVersion, "4.5") >= 0)
{
string v45Plus = GetDotNetVersion.Get45PlusFromRegistry();
if (v45Plus != "") maxDotNetVersion = v45Plus;
}
Console.WriteLine("*** Maximum .NET version number found is: " + maxDotNetVersion + "***");
}
private static string Get45PlusFromRegistry()
{
String dotNetVersion = "";
const string subkey = @"SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full\";
using (RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32).OpenSubKey(subkey))
{
if (ndpKey != null && ndpKey.GetValue("Release") != null)
{
dotNetVersion = CheckFor45PlusVersion((int)ndpKey.GetValue("Release"));
Console.WriteLine(".NET Framework Version: " + dotNetVersion);
}
else
{
Console.WriteLine(".NET Framework Version 4.5 or later is not detected.");
}
}
return dotNetVersion;
}
// Checking the version using >= will enable forward compatibility.
private static string CheckFor45PlusVersion(int releaseKey)
{
if (releaseKey >= 528040) return "4.8 or later";
if (releaseKey >= 461808) return "4.7.2";
if (releaseKey >= 461308) return "4.7.1";
if (releaseKey >= 460798) return "4.7";
if (releaseKey >= 394802) return "4.6.2";
if (releaseKey >= 394254) return "4.6.1";
if (releaseKey >= 393295) return "4.6";
if ((releaseKey >= 379893)) return "4.5.2";
if ((releaseKey >= 378675)) return "4.5.1";
if ((releaseKey >= 378389)) return "4.5";
// This code should never execute. A non-null release key should mean
// that 4.5 or later is installed.
return "No 4.5 or later version detected";
}
private static string GetVersionFromRegistry()
{
String maxDotNetVersion = "";
// Opens the registry key for the .NET Framework entry.
using (RegistryKey ndpKey = RegistryKey.OpenRemoteBaseKey(RegistryHive.LocalMachine, "")
.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\"))
{
// As an alternative, if you know the computers you will query are running .NET Framework 4.5
// or later, you can use:
// using (RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine,
// RegistryView.Registry32).OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\"))
foreach (string versionKeyName in ndpKey.GetSubKeyNames())
{
if (versionKeyName.StartsWith("v"))
{
RegistryKey versionKey = ndpKey.OpenSubKey(versionKeyName);
string name = (string)versionKey.GetValue("Version", "");
string sp = versionKey.GetValue("SP", "").ToString();
string install = versionKey.GetValue("Install", "").ToString();
if (install == "") //no install info, must be later.
{
Console.WriteLine(versionKeyName + " " + name);
if (String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
}
else
{
if (sp != "" && install == "1")
{
Console.WriteLine(versionKeyName + " " + name + " SP" + sp);
if (String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
}
}
if (name != "")
{
continue;
}
foreach (string subKeyName in versionKey.GetSubKeyNames())
{
RegistryKey subKey = versionKey.OpenSubKey(subKeyName);
name = (string)subKey.GetValue("Version", "");
if (name != "")
{
sp = subKey.GetValue("SP", "").ToString();
}
install = subKey.GetValue("Install", "").ToString();
if (install == "")
{
//no install info, must be later.
Console.WriteLine(versionKeyName + " " + name);
if (String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
}
else
{
if (sp != "" && install == "1")
{
Console.WriteLine(" " + subKeyName + " " + name + " SP" + sp);
if (String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
}
else if (install == "1")
{
Console.WriteLine(" " + subKeyName + " " + name);
if (String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
} // if
} // if
} // for
} // if
} // foreach
} // using
return maxDotNetVersion;
}
} // class
Sur ma machine, il sort:
v2.0.50727 2.0.50727.4927 SP2
v3.0 3.0.30729.4926 SP2
v3.5 3.5.30729.4926 SP1
v4
Client 4.7.03056
Full 4.7.03056
v4.0
Client 4.0.0.0
.NET Framework Version: 4.7.2 ou version ultérieure
*** * Le numéro de version maximum de .NET trouvé est: 4.7.2 ou version ultérieure ****
La seule chose qui doit être maintenue au fil du temps est le numéro de version une fois qu'une version .NET supérieure à 4.7.1 sort - cela peut être fait facilement en modifiant la fonction CheckFor45PlusVersion, vous devez connaître la clé de publication de la nouvelle version, puis vous peut l'ajouter. Par exemple:
if (releaseKey >= 461308) return "4.7.1 or later";
Cette clé de version est toujours la dernière et valide pour la mise à jour Fall Creators de Windows 10. Si vous utilisez toujours d'autres versions (plus anciennes) de Windows, il en existe une autre selon cette documentation de Microsoft:
.NET Framework 4.7.1 installé sur toutes les autres versions du système d'exploitation Windows 461310
Donc, si vous en avez également besoin, vous devrez ajouter
if (releaseKey >= 461310) return "4.7.1 or later";
en haut de la fonction CheckFor45PlusVersion. De même, cela fonctionne pour les versions plus récentes. Par exemple, j'ai récemment ajouté le chèque pour 4.8. Vous pouvez trouver ces numéros de build généralement chez Microsoft.
Remarque: vous n'avez pas besoin d'installer Visual Studio, pas même PowerShell - vous pouvez l'utiliser csc.exepour compiler et exécuter le script ci-dessus, que j'ai décrit ici.
Mise à jour: La question concerne le .NET Framework, par souci d'exhaustivité, j'aimerais également mentionner comment interroger la version de .NET Core - par rapport à ce qui précède, c'est facile: ouvrez un shell de commande et tapez:
dotnet --infoEnter
et il répertorie également le numéro de version .NET Core, la version Windows et les versions de chaque DLL d'exécution associée. Exemple de sortie:
.NET Core SDK (reflétant n'importe quel fichier global.json):
Version: 2.1.300
Commit: adab45bf0c
Environnement d'exécution:
Nom du système d'
exploitation: Version du système d'exploitation Windows : 10.0.15063
Plate-forme du système d'exploitation: Windows
RID: win10-x64
Chemin de base: C: \ Program Files \ dotnet \ sdk \ 2.1.300
Hôte (utile pour le support):
Version: 2.1.0
Validation: caa7b7e2ba
.NET Core SDK installés:
1.1.9 [C: \ Program Files \ dotnet \ sdk]
2.1.102 [C: \ Program Files \ dotnet \ sdk]
...
2.1.300 [C: \ Program Files \ dotnet \ sdk]
.NET Core runtimes installés:
Microsoft.AspNetCore.All 2.1.0 [C: \ Program
Files \ dotnet \ shared \ Microsoft .AspNetCore.All]
...
Microsoft.NETCore.App 2.1.0 [C: \ Program Files \ dotnet \ shared \ Microsoft.NETCore.App]
Pour installer des environnements d' exécution ou des SDK .NET Core supplémentaires:
https://aka.ms/dotnet-download
Notez que
si vous n'avez besoin que du numéro de version sans toutes les informations supplémentaires, vous pouvez utiliser dotnet --version.
sur un PC Windows 64 bits , il est possible d'installer la version x86 côte à côte avec la version x64 de .NET Core. Si tel est le cas, vous n'obtiendrez que la version qui vient en premier dans la variable d'environnement PATH. Cela est particulièrement important si vous avez besoin de le maintenir à jour et que vous souhaitez connaître chaque version. Pour interroger les deux versions, utilisez:
C: \ Program Files \ dotnet \ dotnet.exe --version
3.0.100-preview6-012264
C: \ Program Files (x86) \ dotnet \ dotnet.exe --version
3.0.100-preview6-012264
Dans l'exemple ci-dessus, les deux sont identiques, mais si vous avez oublié de mettre à jour les deux instances, vous pourriez obtenir des résultats différents! Notez que Program Filesc'est pour la version 64 bits , et Program Files (x86)c'est la version 32 bits .
Mise à jour: Si vous préférez conserver les numéros de build dans une liste plutôt que dans une cascade d'instructions if (comme Microsoft l'a suggéré), vous pouvez utiliser ce code à la CheckFor45PlusVersionplace:
private static string CheckFor45PlusVersion(int releaseKey)
{
var release = new Dictionary<int, string>()
{
{ 378389, "4.5" },
{ 378675, "4.5.1" }, { 379893, "4.5.2" },
{ 393295, "4.6" },
{ 394254, "4.6.1" }, { 394802, "4.6.2" },
{ 460798, "4.7" },
{ 461308, "4.7.1" }, { 461808, "4.7.2" },
{ 528040, "4.8 or later" }
};
int result = -1;
foreach(var k in release.OrderBy(k=>k.Key))
{
if (k.Key <= releaseKey) result = k.Key; else break;
};
return (result > 0) ? release[result] : "No 4.5 or later version detected";
}
AFAIK il n'y a pas de méthode intégrée dans le framework qui vous permettra de le faire. Vous pouvez consulter cet article pour une suggestion sur la détermination de la version du framework en lisant les valeurs de registre Windows.
Cette classe permet à votre application de lancer un message de notification élégant plutôt que de planter et de graver si elle ne trouve pas la version .NET appropriée. Tout ce que vous avez à faire est ceci dans votre code principal:
[STAThread]
static void Main(string[] args)
{
if (!DotNetUtils.IsCompatible())
return;
. . .
}
Par défaut, cela prend 4.5.2, mais vous pouvez le modifier à votre guise, la classe (n'hésitez pas à remplacer MessageBox par Console):
Mis à jour pour 4.8:
public class DotNetUtils
{
public enum DotNetRelease
{
NOTFOUND,
NET45,
NET451,
NET452,
NET46,
NET461,
NET462,
NET47,
NET471,
NET472,
NET48,
}
public static bool IsCompatible(DotNetRelease req = DotNetRelease.NET452)
{
DotNetRelease r = GetRelease();
if (r < req)
{
MessageBox.Show(String.Format("This this application requires {0} or greater.", req.ToString()));
return false;
}
return true;
}
public static DotNetRelease GetRelease(int release = default(int))
{
int r = release != default(int) ? release : GetVersion();
if (r >= 528040) return DotNetRelease.NET48;
if (r >= 461808) return DotNetRelease.NET472;
if (r >= 461308) return DotNetRelease.NET471;
if (r >= 460798) return DotNetRelease.NET47;
if (r >= 394802) return DotNetRelease.NET462;
if (r >= 394254) return DotNetRelease.NET461;
if (r >= 393295) return DotNetRelease.NET46;
if (r >= 379893) return DotNetRelease.NET452;
if (r >= 378675) return DotNetRelease.NET451;
if (r >= 378389) return DotNetRelease.NET45;
return DotNetRelease.NOTFOUND;
}
public static int GetVersion()
{
int release = 0;
using (RegistryKey key = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32)
.OpenSubKey("SOFTWARE\\Microsoft\\NET Framework Setup\\NDP\\v4\\Full\\"))
{
release = Convert.ToInt32(key.GetValue("Release"));
}
return release;
}
}
Facilement extensible lorsqu'ils ajoutent une nouvelle version plus tard. Je n'ai rien pris avant la 4.5 mais vous voyez l'idée.
4.7.1, le numéro de révision a été tiré de docs.microsoft.com/en-us/dotnet/framework/migration-guide/…
IsCompatible()- la compatibilité est probablement la raison la plus courante pour interroger la version .Net de tous.
public class DA
{
public static class VersionNetFramework
{
public static string GetVersion()
{
return Environment.Version.ToString();
}
public static string GetVersionDicription()
{
int Major = Environment.Version.Major;
int Minor = Environment.Version.Minor;
int Build = Environment.Version.Build;
int Revision = Environment.Version.Revision;
//http://dzaebel.net/NetVersionen.htm
//http://stackoverflow.com/questions/12971881/how-to-reliably-detect-the-actual-net-4-5-version-installed
//4.0.30319.42000 = .NET 4.6 on Windows 8.1 64 - bit
if ((Major >=4) && (Minor >=0) && (Build >= 30319) && (Revision >= 42000))
return @".NET 4.6 on Windows 8.1 64 - bit or later";
//4.0.30319.34209 = .NET 4.5.2 on Windows 8.1 64 - bit
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 34209))
return @".NET 4.5.2 on Windows 8.1 64 - bit or later";
//4.0.30319.34209 = .NET 4.5.2 on Windows 7 SP1 64 - bit
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 34209))
return @".NET 4.5.2 on Windows 7 SP1 64 - bit or later";
//4.0.30319.34014 = .NET 4.5.1 on Windows 8.1 64 - bit
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 34014))
return @".NET 4.5.1 on Windows 8.1 64 - bit or later";
//4.0.30319.18444 = .NET 4.5.1 on Windows 7 SP1 64 - bit(with MS14 - 009 security update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 18444))
return @".NET 4.5.1 on Windows 7 SP1 64 - bit(with MS14 - 009 security update) or later";
//4.0.30319.18408 = .NET 4.5.1 on Windows 7 SP1 64 - bit
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 18408))
return @".NET 4.5.1 on Windows 7 SP1 64 - bit or later";
//4.0.30319.18063 = .NET 4.5 on Windows 7 SP1 64 - bit(with MS14 - 009 security update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 18063))
return @".NET 4.5 on Windows 7 SP1 64 - bit(with MS14 - 009 security update) or later";
//4.0.30319.18052 = .NET 4.5 on Windows 7 SP1 64 - bit
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 18052))
return @".NET 4.5 on Windows 7 SP1 64 - bit or later";
//4.0.30319.18010 = .NET 4.5 on Windows 8
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 18010))
return @".NET 4.5 on Windows 8 or later";
//4.0.30319.17929 = .NET 4.5 RTM
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 17929))
return @".NET 4.5 RTM or later";
//4.0.30319.17626 = .NET 4.5 RC
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 17626))
return @".NET 4.5 RC or later";
//4.0.30319.17020.NET 4.5 Preview, September 2011
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 17020))
return @".NET 4.5 Preview, September 2011 or later";
//4.0.30319.2034 = .NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS14 - 009 LDR security update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 2034))
return @".NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS14 - 009 LDR security update) or later";
//4.0.30319.1026 = .NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS14 - 057 GDR security update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 1026))
return @".NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS14 - 057 GDR security update) or later";
//4.0.30319.1022 = .NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS14 - 009 GDR security update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 1022))
return @".NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS14 - 009 GDR security update) or later";
//4.0.30319.1008 = .NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS13 - 052 GDR security update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 1008))
return @".NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS13 - 052 GDR security update) or later";
//4.0.30319.544 = .NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS12 - 035 LDR security update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 544))
return @".NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS12 - 035 LDR security update) or later";
//4.0.30319.447 yes built by: RTMLDR, .NET 4.0 Platform Update 1, April 2011
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 447))
return @"built by: RTMLDR, .NET 4.0 Platform Update 1, April 2011 or later";
//4.0.30319.431 yes built by: RTMLDR, .NET 4.0 GDR Update, March 2011 / with VS 2010 SP1 / or.NET 4.0 Update
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 431))
return @"built by: RTMLDR, .NET 4.0 GDR Update, March 2011 / with VS 2010 SP1 / or.NET 4.0 Update or later";
//4.0.30319.296 = .NET 4.0 on Windows XP SP3, 7(with MS12 - 074 GDR security update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 296))
return @".NET 4.0 on Windows XP SP3, 7(with MS12 - 074 GDR security update) or later";
//4.0.30319.276 = .NET 4.0 on Windows XP SP3 (4.0.3 Runtime update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 276))
return @".NET 4.0 on Windows XP SP3 (4.0.3 Runtime update) or later";
//4.0.30319.269 = .NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS12 - 035 GDR security update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 269))
return @".NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS12 - 035 GDR security update) or later";
//4.0.30319.1 yes built by: RTMRel, .NET 4.0 RTM Release, April 2010
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 1))
return @"built by: RTMRel, .NET 4.0 RTM Release, April 2010 or later";
//4.0.30128.1 built by: RC1Rel, .NET 4.0 Release Candidate, Feb 2010
if ((Major >=4) && (Minor >=0) && (Build >= 30128) && (Revision >= 1))
return @"built by: RC1Rel, .NET 4.0 Release Candidate, Feb 2010 or later";
//4.0.21006.1 built by: B2Rel, .NET 4.0 Beta2, Oct 2009
if ((Major >=4) && (Minor >=0) && (Build >= 21006) && (Revision >=1))
return @"built by: B2Rel, .NET 4.0 Beta2, Oct 2009 or later";
//4.0.20506.1 built by: Beta1, .NET 4.0 Beta1, May 2009
if ((Major >=4) && (Minor >=0) && (Build >= 20506) && (Revision >=1))
return @"built by: Beta1, .NET 4.0 Beta1, May 2009 or later";
//4.0.11001.1 built by: CTP2 VPC, .NET 4.0 CTP, October 2008
if ((Major >=4) && (Minor >=0) && (Build >= 11001) && (Revision >=1))
return @"built by: CTP2 VPC, .NET 4.0 CTP, October 2008 or later";
//3.5.30729.5420 yes built by: Win7SP1, .NET 3.5.1 Sicherheits - Update, 12 April 2011
if ((Major >=3) && (Minor >=5) && (Build >= 30729) && (Revision >= 5420))
return @"built by: Win7SP1, .NET 3.5.1 Sicherheits - Update, 12 April 2011 or later";
//3.5.30729.5004 yes built by: NetFXw7 / Windows 7..Rel., Jan 2010 / +Data functions KB976127 .NET 3.5 SP1
if ((Major >=3) && (Minor >=5) && (Build >= 30729) && (Revision >= 5004))
return @"built by: NetFXw7 / Windows 7..Rel., Jan 2010 / +Data functions KB976127 .NET 3.5 SP1 or later";
//3.5.30729.4466 yes built by: NetFXw7 / Windows XP..Rel. , Jan 2010 / +Data functions KB976127 .NET 3.5 SP1
if ((Major >=3) && (Minor >=5) && (Build >= 30729) && (Revision >= 4466))
return @"built by: NetFXw7 / Windows XP..Rel. , Jan 2010 / +Data functions KB976127 .NET 3.5 SP1 or later";
//3.5.30729.4926 yes built by: NetFXw7 / Windows 7 Release, Oct 2009 / .NET 3.5 SP1 + Hotfixes
if ((Major >=3) && (Minor >=5) && (Build >= 30729) && (Revision >= 4926))
return @"built by: NetFXw7 / Windows 7 Release, Oct 2009 / .NET 3.5 SP1 + Hotfixes or later";
//3.5.30729.4918 built by: NetFXw7 / Windows 7 Release Candidate, June 2009
if ((Major >=3) && (Minor >=5) && (Build >= 30729) && (Revision >= 4918))
return @"built by: NetFXw7 / Windows 7 Release Candidate, June 2009 or later";
//3.5.30729.196 yes built by: QFE, .NET 3.5 Family Update Vista / W2008, Dec 2008
if ((Major >= 3) && (Minor >= 5) && (Build >= 30729) && (Revision >=196))
return @"built by: QFE, .NET 3.5 Family Update Vista / W2008, Dec 2008 or later";
//3.5.30729.1 yes built by: SP, .NET 3.5 SP1, Aug 2008
if ((Major >= 3) && (Minor >= 5) && (Build >= 30729) && (Revision >=1))
return @"built by: SP, .NET 3.5 SP1, Aug 2008 or later";
//3.5.30428.1 built by: SP1Beta1, .NET 3.5 SP1 BETA1, May 2008
if ((Major >=3) && (Minor >=5) && (Build >= 30428) && (Revision >=1))
return @"built by: SP1Beta1, .NET 3.5 SP1 BETA1, May 2008 or later";
//3.5.21022.8 yes built by: RTM, Jan 2008
if ((Major >=3) && (Minor >=5) && (Build >= 21022) && (Revision >= 8))
return @"built by: RTM, Jan 2008 or later";
//3.5.20706.1 built by: Beta2, Orcas Beta2, Oct 2007
if ((Major >=3) && (Minor >=5) && (Build >= 20706) && (Revision >= 1))
return @"built by: Beta2, Orcas Beta2, Oct 2007 or later";
//3.5.20526.0 built by: MCritCTP, Orcas Beta1, Mar 2007
if ((Major >=3) && (Minor >=5) && (Build >= 20526) && (Revision >=0))
return @"built by: MCritCTP, Orcas Beta1, Mar 2007 or later";
//3.0.6920.1500 yes built by: QFE, Family Update Vista / W2008, Dez 2008, KB958483
if ((Major >=3) && (Minor >=0) && (Build >= 6920) && (Revision >= 1500))
return @"built by: QFE, Family Update Vista / W2008, Dez 2008, KB958483 or later";
//3.0.4506.4926 yes(NetFXw7.030729 - 4900) / Windows 7 Release, Oct 2009
if ((Major >=3) && (Minor >=0) && (Build >= 4506) && (Revision >= 4926))
return @"(NetFXw7.030729 - 4900) / Windows 7 Release, Oct 2009 or later";
//3.0.4506.4918(NetFXw7.030729 - 4900) / Windows 7 Release Candidate, June 2009
if ((Major >=3) && (Minor >=5) && (Build >= 4506) && (Revision >= 4918))
return @"(NetFXw7.030729 - 4900) / Windows 7 Release Candidate, June 2009 or later";
//3.0.4506.2152 3.0.4506.2152(SP.030729 - 0100) / .NET 4.0 Beta1 / May 2009
if ((Major >= 3) && (Minor >= 5) && (Build >= 4506) && (Revision >= 2152))
return @"3.0.4506.2152(SP.030729 - 0100) / .NET 4.0 Beta1 / May 2009 or later";
//3.0.4506.2123 yes(NetFX.030618 - 0000).NET 3.0 SP2, Aug 2008
if ((Major >= 3) && (Minor >= 5) && (Build >= 4506) && (Revision >= 2123))
return @"s(NetFX.030618 - 0000).NET 3.0 SP2, Aug 2008 or later";
//3.0.4506.2062(SP1Beta1.030428 - 0100), .NET 3.0 SP1 BETA1, May 2008
if ((Major >= 3) && (Minor >= 5) && (Build >= 4506) && (Revision >= 2062))
return @"(SP1Beta1.030428 - 0100), .NET 3.0 SP1 BETA1, May 2008 or later";
//3.0.4506.590(winfxredb2.004506 - 0590), Orcas Beta2, Oct 2007
if ((Major >= 3) && (Minor >= 5) && (Build >= 4506) && (Revision >= 590))
return @"(winfxredb2.004506 - 0590), Orcas Beta2, Oct 2007 or later";
//3.0.4506.577(winfxred.004506 - 0577), Orcas Beta1, Mar 2007
if ((Major >= 3) && (Minor >= 5) && (Build >= 4506) && (Revision >= 577))
return @"(winfxred.004506 - 0577), Orcas Beta1, Mar 2007 or later";
//3.0.4506.30 yes Release (.NET Framework 3.0) Nov 2006
if ((Major >= 3) && (Minor >= 5) && (Build >= 4506) && (Revision >= 30))
return @"Release (.NET Framework 3.0) Nov 2006 or later";
//3.0.4506.25 yes(WAPRTM.004506 - 0026) Vista Ultimate, Jan 2007
if ((Major >= 3) && (Minor >= 5) && (Build >= 4506) && (Revision >= 25))
return @"(WAPRTM.004506 - 0026) Vista Ultimate, Jan 2007 or later";
//2.0.50727.4927 yes(NetFXspW7.050727 - 4900) / Windows 7 Release, Oct 2009
if ((Major >=2) && (Minor >=0) && (Build >= 50727) && (Revision >= 4927))
return @"(NetFXspW7.050727 - 4900) / Windows 7 Release, Oct 2009 or later";
//2.0.50727.4918(NetFXspW7.050727 - 4900) / Windows 7 Release Candidate, June 2009
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 4918))
return @"(NetFXspW7.050727 - 4900) / Windows 7 Release Candidate, June 2009 or later";
//2.0.50727.4200 yes(NetFxQFE.050727 - 4200).NET 2.0 SP2, KB974470, Securityupdate, Oct 2009
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 4200))
return @"(NetFxQFE.050727 - 4200).NET 2.0 SP2, KB974470, Securityupdate, Oct 2009 or later";
//2.0.50727.3603(GDR.050727 - 3600).NET 4.0 Beta 2, Oct 2009
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 3603))
return @"(GDR.050727 - 3600).NET 4.0 Beta 2, Oct 2009 or later";
//2.0.50727.3082 yes(QFE.050727 - 3000), .NET 3.5 Family Update XP / W2003, Dez 2008, KB958481
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 3082))
return @"(QFE.050727 - 3000), .NET 3.5 Family Update XP / W2003, Dez 2008, KB958481 or later";
//2.0.50727.3074 yes(QFE.050727 - 3000), .NET 3.5 Family Update Vista / W2008, Dez 2008, KB958481
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 3074))
return @"(QFE.050727 - 3000), .NET 3.5 Family Update Vista / W2008, Dez 2008, KB958481 or later";
//2.0.50727.3053 yes(netfxsp.050727 - 3000), .NET 2.0 SP2, Aug 2008
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 3053))
return @"yes(netfxsp.050727 - 3000), .NET 2.0 SP2, Aug 2008 or later";
//2.0.50727.3031(netfxsp.050727 - 3000), .NET 2.0 SP2 Beta 1, May 2008
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 3031))
return @"(netfxsp.050727 - 3000), .NET 2.0 SP2 Beta 1, May 2008 or later";
//2.0.50727.1434 yes(REDBITS.050727 - 1400), Windows Server 2008 and Windows Vista SP1, Dez 2007
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 1434))
return @"(REDBITS.050727 - 1400), Windows Server 2008 and Windows Vista SP1, Dez 2007 or later";
//2.0.50727.1433 yes(REDBITS.050727 - 1400), .NET 2.0 SP1 Release, Nov 2007, http://www.microsoft.com/downloads/details.aspx?FamilyID=79bc3b77-e02c-4ad3-aacf-a7633f706ba5
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 1433))
return @"(REDBITS.050727 - 1400), .NET 2.0 SP1 Release, Nov 2007 or later";
//2.0.50727.1378(REDBITSB2.050727 - 1300), Orcas Beta2, Oct 2007
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 1378))
return @"(REDBITSB2.050727 - 1300), Orcas Beta2, Oct 2007 or later";
//2.0.50727.1366(REDBITS.050727 - 1300), Orcas Beta1, Mar 2007
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 1366))
return @"(REDBITS.050727 - 1300), Orcas Beta1, Mar 2007 or later";
//2.0.50727.867 yes(VS Express Edition 2005 SP1), Apr 2007, http://www.microsoft.com/downloads/details.aspx?FamilyId=7B0B0339-613A-46E6-AB4D-080D4D4A8C4E
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 867))
return @"(VS Express Edition 2005 SP1), Apr 2007 or later";
//2.0.50727.832(Fix x86 VC++2005), Apr 2007, http://support.microsoft.com/kb/934586/en-us
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 832))
return @"(Fix x86 VC++2005), Apr 2007 or later";
//2.0.50727.762 yes(VS TeamSuite SP1), http://www.microsoft.com/downloads/details.aspx?FamilyId=BB4A75AB-E2D4-4C96-B39D-37BAF6B5B1DC
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 762))
return @"(VS TeamSuite SP1) or later";
//2.0.50727.312 yes(rtmLHS.050727 - 3100) Vista Ultimate, Jan 2007
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 312))
return @"(rtmLHS.050727 - 3100) Vista Ultimate, Jan 2007 or later";
//2.0.50727.42 yes Release (.NET Framework 2.0) Oct 2005
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 42))
return @"Release (.NET Framework 2.0) Oct 2005 or later";
//2.0.50727.26 Version 2.0(Visual Studio Team System 2005 Release Candidate) Oct 2005
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 26))
return @"Version 2.0(Visual Studio Team System 2005 Release Candidate) Oct 2005 or later";
//2.0.50712 Version 2.0(Visual Studio Team System 2005(Drop3) CTP) July 2005
if ((Major >=2) && (Minor >=0) && (Build >= 50712))
return @"Version 2.0(Visual Studio Team System 2005(Drop3) CTP) July 2005 or later";
//2.0.50215 Version 2.0(WinFX SDK for Indigo / Avalon 2005 CTP) July 2005
if ((Major >=2) && (Minor >=0) && (Build >= 50215))
return @"Version 2.0(WinFX SDK for Indigo / Avalon 2005 CTP) July 2005 or later";
//2.0.50601.0 Version 2.0(Visual Studio.NET 2005 CTP) June 2005
if ((Major >=2) && (Minor >=0) && (Build >= 50601) && (Revision >=0))
return @"Version 2.0(Visual Studio.NET 2005 CTP) June 2005 or later";
//2.0.50215.44 Version 2.0(Visual Studio.NET 2005 Beta 2, Visual Studio Express Beta 2) Apr 2005
if ((Major >=2) && (Minor >=0) && (Build >= 50215) && (Revision >= 44))
return @"Version 2.0(Visual Studio.NET 2005 Beta 2, Visual Studio Express Beta 2) Apr 2005 or later";
//2.0.50110.28 Version 2.0(Visual Studio.NET 2005 CTP, Professional Edition) Feb 2005
if ((Major >=2) && (Minor >=0) && (Build >= 50110) && (Revision >=28))
return @"Version 2.0(Visual Studio.NET 2005 CTP, Professional Edition) Feb 2005 or later";
//2.0.41115.19 Version 2.0(Visual Studio.NET 2005 Beta 1, Team System Refresh) Dec 2004
if ((Major >=2 ) && (Minor >=0 ) && (Build >= 41115) && (Revision >= 19))
return @"Version 2.0(Visual Studio.NET 2005 Beta 1, Team System Refresh) Dec 2004 or later";
//2.0.40903.0 Version 2.0(Whidbey CTP, Visual Studio Express) Oct 2004
if ((Major >=2) && (Minor >=0) && (Build >= 40903) && (Revision >=0))
return @"Version 2.0(Whidbey CTP, Visual Studio Express) Oct 2004 or later";
//2.0.40607.85 Version 2.0(Visual Studio.NET 2005 Beta 1, Team System Refresh) Aug 2004 *
if ((Major >=2) && (Minor >=0) && (Build >= 40607) && (Revision >= 85))
return @"Version 2.0(Visual Studio.NET 2005 Beta 1, Team System Refresh) Aug 2004 * or later";
//2.0.40607.42 Version 2.0(SQL Server Yukon Beta 2) July 2004
if ((Major >=2) && (Minor >=0) && (Build >= 40607) && (Revision >= 42))
return @"Version 2.0(SQL Server Yukon Beta 2) July 2004 or later";
//2.0.40607.16 Version 2.0(Visual Studio.NET 2005 Beta 1, TechEd Europe 2004) June 2004
if ((Major >=2) && (Minor >=0) && (Build >= 40607) && (Revision >= 16))
return @"Version 2.0(Visual Studio.NET 2005 Beta 1, TechEd Europe 2004) June 2004 or later";
//2.0.40301.9 Version 2.0(Whidbey CTP, WinHEC 2004) March 2004 *
if ((Major >=0) && (Minor >=0) && (Build >= 40301) && (Revision >=9))
return @"Version 2.0(Whidbey CTP, WinHEC 2004) March 2004 * or later";
//1.2.30703.27 Version 1.2(Whidbey Alpha, PDC 2004) Nov 2003 *
if ((Major >=1) && (Minor >=2) && (Build >= 30703) && (Revision >= 27))
return @"Version 1.2(Whidbey Alpha, PDC 2004) Nov 2003 * or later";
//1.2.21213.1 Version 1.2(Whidbey pre - Alpha build) *
if ((Major >=1) && (Minor >=2) && (Build >= 21213) && (Revision >=1))
return @"Version 1.2(Whidbey pre - Alpha build) * or later";
//1.1.4322.2443 yes Version 1.1 Servicepack 1, KB953297, Oct 2009
if ((Major >=1) && (Minor >=1) && (Build >= 4322) && (Revision >=2443))
return @"Version 1.1 Servicepack 1, KB953297, Oct 2009 or later";
//1.1.4322.2407 yes Version 1.1 RTM
if ((Major >=1) && (Minor >=1) && (Build >= 4322) && (Revision >= 2407))
return @"Version 1.1 RTM or later";
//1.1.4322.2407 Version 1.1 Orcas Beta2, Oct 2007
if ((Major >=1) && (Minor >=1) && (Build >= 4322) && (Revision >= 2407))
return @"Version 1.1 Orcas Beta2, Oct 2007 or later";
//1.1.4322.2379 Version 1.1 Orcas Beta1, Mar 2007
if ((Major >=1) && (Minor >=1) && (Build >= 4322) && (Revision >= 2379))
return @"Version 1.1 Orcas Beta1, Mar 2007 or later";
//1.1.4322.2032 yes Version 1.1 SP1 Aug 2004
if ((Major >=1) && (Minor >=1) && (Build >= 4322) && (Revision >= 2032))
return @"Version 1.1 SP1 Aug 2004 or later";
//1.1.4322.573 yes Version 1.1 RTM(Visual Studio.NET 2003 / Windows Server 2003) Feb 2003 *
if ((Major >=1) && (Minor >=1) && (Build >= 4322) && (Revision >= 573))
return @"Version 1.1 RTM(Visual Studio.NET 2003 / Windows Server 2003) Feb 2003 * or later";
//1.1.4322.510 Version 1.1 Final Beta Oct 2002 *
if ((Major >=1) && (Minor >=1) && (Build >= 4322) && (Revision >= 510))
return @"Version 1.1 Final Beta Oct 2002 * or later";
//1.0.3705.6018 yes Version 1.0 SP3 Aug 2004
if ((Major >=1) && (Minor >=0) && (Build >= 3705) && (Revision >= 6018))
return @"Version 1.0 SP3 Aug 2004 or later";
//1.0.3705.288 yes Version 1.0 SP2 Aug 2002 *
if ((Major >=1) && (Minor >=0) && (Build >= 3705) && (Revision >= 288))
return @"Version 1.0 SP2 Aug 2002 * or later";
//1.0.3705.209 yes Version 1.0 SP1 Mar 2002 *
if ((Major >=1) && (Minor >=0) && (Build >= 3705) && (Revision >=209))
return @"Version 1.0 SP1 Mar 2002 * or later";
//1.0.3705.0 yes Version 1.0 RTM(Visual Studio.NET 2002) Feb 2002 *
if ((Major >=1) && (Minor >=0) && (Build >= 3705) && (Revision >=0))
return @"Version 1.0 RTM(Visual Studio.NET 2002) Feb 2002 * or later";
//1.0.3512.0 Version 1.0 Pre - release RC3(Visual Studio.NET 2002 RC3)
if ((Major >=1) && (Minor >=0) && (Build >= 3512) && (Revision >=0))
return @"Version 1.0 Pre - release RC3(Visual Studio.NET 2002 RC3) or later";
//1.0.2914.16 Version 1.0 Public Beta 2 Jun 2001 *
if ((Major >=1) && (Minor >=0) && (Build >= 2914) && (Revision >= 16))
return @"Version 1.0 Public Beta 2 Jun 2001 * or later";
//1.0.2204.21 Version 1.0 Public Beta 1 Nov 2000 *
if ((Major >=1) && (Minor >=0) && (Build >= 2204) && (Revision >=21))
return @"Version 1.0 Public Beta 1 Nov 2000 * or later";
return @"Unknown .NET version";
}
}
}
J'ai eu une situation où ma bibliothèque de classes .NET 4.0 pouvait être appelée à partir d'un assemblys .NET 4.0 ou version supérieure.
Un appel de méthode spécifique ne fonctionnerait que s'il était exécuté à partir d'un assembly 4.5+.
Afin de décider si je devais appeler la méthode ou non, je devais déterminer la version actuelle du cadre d'exécution et c'est une très bonne solution pour cela
var frameworkName = new System.Runtime.Versioning.FrameworkName(
AppDomain.CurrentDomain.SetupInformation.TargetFrameworkName
);
if (frameworkName.Version >= new Version(4, 5))
{
// run code
}
Merci pour ce post qui a été très utile. J'ai dû le modifier un peu afin de vérifier le framework 2.0 car la clé de registre ne peut pas être convertie immédiatement en double. Voici le code:
string[] version_names = rk.GetSubKeyNames();
//version names start with 'v', eg, 'v3.5'
//we also need to take care of strings like v2.0.50727...
string sCurrent = version_names[version_names.Length - 1].Remove(0, 1);
if (sCurrent.LastIndexOf(".") > 1)
{
string[] sSplit = sCurrent.Split('.');
sCurrent = sSplit[0] + "." + sSplit[1] + sSplit[2];
}
double dCurrent = Convert.ToDouble(sCurrent, System.Globalization.CultureInfo.InvariantCulture);
double dExpected = Convert.ToDouble(sExpectedVersion);
if (dCurrent >= dExpected)
public class DA {
public static class VersionNetFramework {
public static string Get45or451FromRegistry()
{//https://msdn.microsoft.com/en-us/library/hh925568(v=vs.110).aspx
using (RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32).OpenSubKey("SOFTWARE\\Microsoft\\NET Framework Setup\\NDP\\v4\\Full\\"))
{
int releaseKey = Convert.ToInt32(ndpKey.GetValue("Release"));
if (true)
{
return (@"Version: " + CheckFor45DotVersion(releaseKey));
}
}
}
// Checking the version using >= will enable forward compatibility,
// however you should always compile your code on newer versions of
// the framework to ensure your app works the same.
private static string CheckFor45DotVersion(int releaseKey)
{//https://msdn.microsoft.com/en-us/library/hh925568(v=vs.110).aspx
if (releaseKey >= 394271)
return "4.6.1 installed on all other Windows OS versions or later";
if (releaseKey >= 394254)
return "4.6.1 installed on Windows 10 or later";
if (releaseKey >= 393297)
return "4.6 installed on all other Windows OS versions or later";
if (releaseKey >= 393295)
return "4.6 installed with Windows 10 or later";
if (releaseKey >= 379893)
return "4.5.2 or later";
if (releaseKey >= 378758)
return "4.5.1 installed on Windows 8, Windows 7 SP1, or Windows Vista SP2 or later";
if (releaseKey >= 378675)
return "4.5.1 installed with Windows 8.1 or later";
if (releaseKey >= 378389)
return "4.5 or later";
return "No 4.5 or later version detected";
}
public static string GetVersionFromRegistry()
{//https://msdn.microsoft.com/en-us/library/hh925568(v=vs.110).aspx
string res = @"";
// Opens the registry key for the .NET Framework entry.
using (RegistryKey ndpKey =
RegistryKey.OpenRemoteBaseKey(RegistryHive.LocalMachine, "").
OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\"))
{
// As an alternative, if you know the computers you will query are running .NET Framework 4.5
// or later, you can use:
// using (RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine,
// RegistryView.Registry32).OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\"))
foreach (string versionKeyName in ndpKey.GetSubKeyNames())
{
if (versionKeyName.StartsWith("v"))
{
RegistryKey versionKey = ndpKey.OpenSubKey(versionKeyName);
string name = (string)versionKey.GetValue("Version", "");
string sp = versionKey.GetValue("SP", "").ToString();
string install = versionKey.GetValue("Install", "").ToString();
if (install == "") //no install info, must be later.
res += (versionKeyName + " " + name) + Environment.NewLine;
else
{
if (sp != "" && install == "1")
{
res += (versionKeyName + " " + name + " SP" + sp) + Environment.NewLine;
}
}
if (name != "")
{
continue;
}
foreach (string subKeyName in versionKey.GetSubKeyNames())
{
RegistryKey subKey = versionKey.OpenSubKey(subKeyName);
name = (string)subKey.GetValue("Version", "");
if (name != "")
sp = subKey.GetValue("SP", "").ToString();
install = subKey.GetValue("Install", "").ToString();
if (install == "") //no install info, must be later.
res += (versionKeyName + " " + name) + Environment.NewLine;
else
{
if (sp != "" && install == "1")
{
res += (" " + subKeyName + " " + name + " SP" + sp) + Environment.NewLine;
}
else if (install == "1")
{
res += (" " + subKeyName + " " + name) + Environment.NewLine;
}
}
}
}
}
}
return res;
}
public static string GetUpdateHistory()
{//https://msdn.microsoft.com/en-us/library/hh925567(v=vs.110).aspx
string res=@"";
using (RegistryKey baseKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32).OpenSubKey(@"SOFTWARE\Microsoft\Updates"))
{
foreach (string baseKeyName in baseKey.GetSubKeyNames())
{
if (baseKeyName.Contains(".NET Framework") || baseKeyName.StartsWith("KB") || baseKeyName.Contains(".NETFramework"))
{
using (RegistryKey updateKey = baseKey.OpenSubKey(baseKeyName))
{
string name = (string)updateKey.GetValue("PackageName", "");
res += baseKeyName + " " + name + Environment.NewLine;
foreach (string kbKeyName in updateKey.GetSubKeyNames())
{
using (RegistryKey kbKey = updateKey.OpenSubKey(kbKeyName))
{
name = (string)kbKey.GetValue("PackageName", "");
res += (" " + kbKeyName + " " + name) + Environment.NewLine;
if (kbKey.SubKeyCount > 0)
{
foreach (string sbKeyName in kbKey.GetSubKeyNames())
{
using (RegistryKey sbSubKey = kbKey.OpenSubKey(sbKeyName))
{
name = (string)sbSubKey.GetValue("PackageName", "");
if (name == "")
name = (string)sbSubKey.GetValue("Description", "");
res += (" " + sbKeyName + " " + name) + Environment.NewLine;
}
}
}
}
}
}
}
}
}
return res;
}
}
en utilisant la classe DA.VersionNetFramework
private void Form1_Shown(object sender, EventArgs e)
{
//
// Current OS Information
//
richTextBox1.Text = @"Current OS Information:";
richTextBox1.AppendText(Environment.NewLine +
"Machine Name: " + Environment.MachineName);
richTextBox1.AppendText(Environment.NewLine +
"Platform: " + Environment.OSVersion.Platform.ToString());
richTextBox1.AppendText(Environment.NewLine +
Environment.OSVersion);
//
// .NET Framework Environment Information
//
richTextBox1.AppendText(Environment.NewLine + Environment.NewLine +
".NET Framework Environment Information:");
richTextBox1.AppendText(Environment.NewLine +
"Environment.Version " + Environment.Version);
richTextBox1.AppendText(Environment.NewLine +
DA.VersionNetFramework.GetVersionDicription());
//
// .NET Framework Information From Registry
//
richTextBox1.AppendText(Environment.NewLine + Environment.NewLine +
".NET Framework Information From Registry:");
richTextBox1.AppendText(Environment.NewLine +
DA.VersionNetFramework.GetVersionFromRegistry());
//
// .NET Framework 4.5 or later Information From Registry
//
richTextBox1.AppendText(Environment.NewLine +
".NET Framework 4.5 or later Information From Registry:");
richTextBox1.AppendText(Environment.NewLine +
DA.VersionNetFramework.Get45or451FromRegistry());
//
// Update History
//
richTextBox1.AppendText(Environment.NewLine + Environment.NewLine +
"Update History");
richTextBox1.AppendText(Environment.NewLine +
DA.VersionNetFramework.GetUpdateHistory());
//
// Setting Cursor to first character of textbox
//
if (!richTextBox1.Text.Equals(""))
{
richTextBox1.SelectionStart = 1;
}
}
Résultat:
Informations sur le système d'exploitation actuel: Nom de la machine: D1 Plate-forme: Win32NT Microsoft Windows NT 6.2.9200.0
Informations sur l'environnement .NET Framework: Environment.Version 4.0.30319.42000 .NET 4.6 sous Windows 8.1 64 bits ou version ultérieure
Informations .NET Framework du registre: v2.0.50727 2.0.50727.4927 SP2 v3.0 3.0.30729.4926 SP2 v3.5 3.5.30729.4926 SP1
Client v4 4.6.00079 Complet 4.6.00079
Client v4.0 4.0.0.0
.NET Framework 4.5 ou version ultérieure Informations du registre: Version: 4.6 installée avec Windows 10 ou version ultérieure
Historique des mises à jour Profil client Microsoft .NET Framework 4
KB2468871
KB2468871v2
KB2478063
KB2533523
KB2544514
KB2600211
KB2600217
Microsoft .NET Framework 4 Extended KB2468871 KB2468871v2 KB2478063 KB2533523 KB2544514 KB2600211 KB2600217 Microsoft .NET Framework 4 Extended
KB2468871
KB2468871v2
KB2478063
KB2533523
KB2544514
KB2600211
KB2600217
Microsoft .NET Framework 4 Multi-
Update 50
J'ai changé la classe de Matt afin qu'elle puisse être réutilisée dans n'importe quel projet sans imprimer tous ses chèques sur la console et renvoyer une chaîne simple avec la version max correcte installée.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Win32;
namespace MyNamespace
{
public class DotNetVersion
{
protected bool printVerification;
public DotNetVersion(){
this.printVerification=false;
}
public DotNetVersion(bool printVerification){
this.printVerification=printVerification;
}
public string getDotNetVersion(){
string maxDotNetVersion = getVersionFromRegistry();
if(String.Compare(maxDotNetVersion, "4.5") >= 0){
string v45Plus = get45PlusFromRegistry();
if(!string.IsNullOrWhiteSpace(v45Plus)) maxDotNetVersion = v45Plus;
}
log("*** Maximum .NET version number found is: " + maxDotNetVersion + "***");
return maxDotNetVersion;
}
protected string get45PlusFromRegistry(){
String dotNetVersion = "";
const string subkey = @"SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full\";
using(RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32).OpenSubKey(subkey)){
if(ndpKey != null && ndpKey.GetValue("Release") != null){
dotNetVersion = checkFor45PlusVersion((int)ndpKey.GetValue("Release"));
log(".NET Framework Version: " + dotNetVersion);
}else{
log(".NET Framework Version 4.5 or later is not detected.");
}
}
return dotNetVersion;
}
// Checking the version using >= will enable forward compatibility.
protected string checkFor45PlusVersion(int releaseKey){
if(releaseKey >= 461308) return "4.7.1 or later";
if(releaseKey >= 460798) return "4.7";
if(releaseKey >= 394802) return "4.6.2";
if(releaseKey >= 394254) return "4.6.1";
if(releaseKey >= 393295) return "4.6";
if((releaseKey >= 379893)) return "4.5.2";
if((releaseKey >= 378675)) return "4.5.1";
if((releaseKey >= 378389)) return "4.5";
// This code should never execute. A non-null release key should mean
// that 4.5 or later is installed.
log("No 4.5 or later version detected");
return "";
}
protected string getVersionFromRegistry(){
String maxDotNetVersion = "";
// Opens the registry key for the .NET Framework entry.
using(RegistryKey ndpKey = RegistryKey.OpenRemoteBaseKey(RegistryHive.LocalMachine, "")
.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\")){
// As an alternative, if you know the computers you will query are running .NET Framework 4.5
// or later, you can use:
// using(RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine,
// RegistryView.Registry32).OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\"))
string[] subKeyNnames = ndpKey.GetSubKeyNames();
foreach(string versionKeyName in subKeyNnames){
if(versionKeyName.StartsWith("v")){
RegistryKey versionKey = ndpKey.OpenSubKey(versionKeyName);
string name =(string)versionKey.GetValue("Version", "");
string sp = versionKey.GetValue("SP", "").ToString();
string install = versionKey.GetValue("Install", "").ToString();
if(string.IsNullOrWhiteSpace(install)){ //no install info, must be later.
log(versionKeyName + " " + name);
if(String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
}else{
if(!string.IsNullOrWhiteSpace(sp) && "1".Equals(install)){
log(versionKeyName + " " + name + " SP" + sp);
if(String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
}
}
if(!string.IsNullOrWhiteSpace(name)){
continue;
}
string[] subKeyNames = versionKey.GetSubKeyNames();
foreach(string subKeyName in subKeyNames){
RegistryKey subKey = versionKey.OpenSubKey(subKeyName);
name =(string)subKey.GetValue("Version", "");
if(!string.IsNullOrWhiteSpace(name)){
sp = subKey.GetValue("SP", "").ToString();
}
install = subKey.GetValue("Install", "").ToString();
if(string.IsNullOrWhiteSpace(install)){
//no install info, must be later.
log(versionKeyName + " " + name);
if(String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
}else{
if(!string.IsNullOrWhiteSpace(sp) && "1".Equals(install)){
log(" " + subKeyName + " " + name + " SP" + sp);
if(String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
}
else if("1".Equals(install)){
log(" " + subKeyName + " " + name);
if(String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
} // if
} // if
} // for
} // if
} // foreach
} // using
return maxDotNetVersion;
}
protected void log(string message){
if(printVerification) Console.WriteLine(message);
}
} // class
}
J'ai essayé de combiner toutes les réponses en un seul tout.
En utilisant:
NetFrameworkUtilities.GetVersion()renverra la version actuellement disponible du .NET Framework à ce moment ou null si elle n'est pas présente.
Cet exemple fonctionne dans les versions 3.5+ de .NET Framework. Il ne nécessite pas de droits d'administrateur.
Je tiens à noter que vous pouvez vérifier la version en utilisant les opérateurs <et> comme ceci:
var version = NetFrameworkUtilities.GetVersion();
if (version != null && version < new Version(4, 5))
{
MessageBox.Show("Your .NET Framework version is less than 4.5");
}
Code:
using System;
using System.Linq;
using Microsoft.Win32;
namespace Utilities
{
public static class NetFrameworkUtilities
{
public static Version GetVersion() => GetVersionHigher4() ?? GetVersionLowerOr4();
private static Version GetVersionLowerOr4()
{
using (var key = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP"))
{
var names = key?.GetSubKeyNames();
//version names start with 'v', eg, 'v3.5' which needs to be trimmed off before conversion
var text = names?.LastOrDefault()?.Remove(0, 1);
if (string.IsNullOrEmpty(text))
{
return null;
}
return text.Contains('.')
? new Version(text)
: new Version(Convert.ToInt32(text), 0);
}
}
private static Version GetVersionHigher4()
{
using (var key = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full"))
{
var value = key?.GetValue("Release");
if (value == null)
{
return null;
}
// Checking the version using >= will enable forward compatibility,
// however you should always compile your code on newer versions of
// the framework to ensure your app works the same.
var releaseKey = Convert.ToInt32(value);
if (releaseKey >= 461308) return new Version(4, 7, 1);
if (releaseKey >= 460798) return new Version(4, 7);
if (releaseKey >= 394747) return new Version(4, 6, 2);
if (releaseKey >= 394254) return new Version(4, 6, 1);
if (releaseKey >= 381029) return new Version(4, 6);
if (releaseKey >= 379893) return new Version(4, 5, 2);
if (releaseKey >= 378675) return new Version(4, 5, 1);
if (releaseKey >= 378389) return new Version(4, 5);
// This line should never execute. A non-null release key should mean
// that 4.5 or later is installed.
return new Version(4, 5);
}
}
}
}
Mettre à jour avec .NET 4.6.2. Vérifiez la valeur Release dans le même registre que dans les réponses précédentes:
RegistryKey registry_key = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full");
if (registry_key == null)
return false;
var val = registry_key.GetValue("Release", 0);
UInt32 Release = Convert.ToUInt32(val);
if (Release >= 394806) // 4.6.2 installed on all other Windows (different than Windows 10)
return true;
if (Release >= 394802) // 4.6.2 installed on Windows 10 or later
return true;
updatespour NET Framework 4.7 et NET Framework 4.7.1 ?
Peu volumineux, mais semble être à jour pour les bizarreries de Microsoft:
public static class Versions
{
static Version
_NET;
static SortedList<String,Version>
_NETInstalled;
#if NET40
#else
public static bool VersionTry(String S, out Version V)
{
try
{
V=new Version(S);
return true;
}
catch
{
V=null;
return false;
}
}
#endif
const string _NetFrameWorkKey = "SOFTWARE\\Microsoft\\NET Framework Setup\\NDP";
static void FillNetInstalled()
{
if (_NETInstalled == null)
{
_NETInstalled = new SortedList<String, Version>(StringComparer.InvariantCultureIgnoreCase);
RegistryKey
frmks = Registry.LocalMachine.OpenSubKey(_NetFrameWorkKey);
string[]
names = frmks.GetSubKeyNames();
foreach (string name in names)
{
if (name.StartsWith("v", StringComparison.InvariantCultureIgnoreCase) && name.Length > 1)
{
string
f, vs;
Version
v;
vs = name.Substring(1);
if (vs.IndexOf('.') < 0)
vs += ".0";
#if NET40
if (Version.TryParse(vs, out v))
#else
if (VersionTry(vs, out v))
#endif
{
f = String.Format("{0}.{1}", v.Major, v.Minor);
#if NET40
if (Version.TryParse((string)frmks.OpenSubKey(name).GetValue("Version"), out v))
#else
if (VersionTry((string)frmks.OpenSubKey(name).GetValue("Version"), out v))
#endif
{
if (!_NETInstalled.ContainsKey(f) || v.CompareTo(_NETInstalled[f]) > 0)
_NETInstalled[f] = v;
}
else
{ // parse variants
Version
best = null;
if (_NETInstalled.ContainsKey(f))
best = _NETInstalled[f];
string[]
varieties = frmks.OpenSubKey(name).GetSubKeyNames();
foreach (string variety in varieties)
#if NET40
if (Version.TryParse((string)frmks.OpenSubKey(name + '\\' + variety).GetValue("Version"), out v))
#else
if (VersionTry((string)frmks.OpenSubKey(name + '\\' + variety).GetValue("Version"), out v))
#endif
{
if (best == null || v.CompareTo(best) > 0)
{
_NETInstalled[f] = v;
best = v;
}
vs = f + '.' + variety;
if (!_NETInstalled.ContainsKey(vs) || v.CompareTo(_NETInstalled[vs]) > 0)
_NETInstalled[vs] = v;
}
}
}
}
}
}
} // static void FillNetInstalled()
public static Version NETInstalled
{
get
{
FillNetInstalled();
return _NETInstalled[_NETInstalled.Keys[_NETInstalled.Count-1]];
}
} // NETInstalled
public static Version NET
{
get
{
FillNetInstalled();
string
clr = String.Format("{0}.{1}", Environment.Version.Major, Environment.Version.Minor);
Version
found = _NETInstalled[_NETInstalled.Keys[_NETInstalled.Count-1]];
if(_NETInstalled.ContainsKey(clr))
return _NETInstalled[clr];
for (int i = _NETInstalled.Count - 1; i >= 0; i--)
if (_NETInstalled.Keys[i].CompareTo(clr) < 0)
return found;
else
found = _NETInstalled[_NETInstalled.Keys[i]];
return found;
}
} // NET
}
À partir de la version 4.5, Microsoft a modifié la façon dont il stocke l'indicateur .NET Framework dans le Registre. Des conseils officiels sur la façon de récupérer le framework .NET et les versions CLR peuvent être trouvés ici: https://msdn.microsoft.com/en-us/library/hh925568(v=vs.110).aspx
J'inclus une version modifiée de leur code pour répondre à la question de la prime de savoir comment vous déterminez le framework .NET pour 4.5 et plus ici:
using System;
using System.Reflection;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.Win32;
namespace stackoverflowtesting
{
class Program
{
static void Main(string[] args)
{
Dictionary<int, String> mappings = new Dictionary<int, string>();
mappings[378389] = "4.5";
mappings[378675] = "4.5.1 on Windows 8.1";
mappings[378758] = "4.5.1 on Windows 8, Windows 7 SP1, and Vista";
mappings[379893] = "4.5.2";
mappings[393295] = "4.6 on Windows 10";
mappings[393297] = "4.6 on Windows not 10";
using (RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32).OpenSubKey("SOFTWARE\\Microsoft\\NET Framework Setup\\NDP\\v4\\Full\\"))
{
int releaseKey = Convert.ToInt32(ndpKey.GetValue("Release"));
if (true)
{
Console.WriteLine("Version: " + mappings[releaseKey]);
}
}
int a = Console.Read();
}
}
}
updatespour NET Framework 4.7 et NET Framework 4.7.1 ?
Voici la solution sur laquelle j'ai atterri:
private static string GetDotNetVersion()
{
var v4 = (string)Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full", false)?.GetValue("Version");
if(v4 != null)
return v4;
var v35 = (string)Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.5", false)?.GetValue("Version");
if(v35 != null)
return v35;
var v3 = (string)Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.0", false)?.GetValue("Version");
return v3 ?? "< 3";
}
public static class DotNetHelper
{
public static Version InstalledVersion
{
get
{
string framework = null;
try
{
using (var ndpKey =
Registry.LocalMachine.OpenSubKey("SOFTWARE\\Microsoft\\NET Framework Setup\\NDP\\v4\\Full\\"))
{
if (ndpKey != null)
{
var releaseKey = ndpKey.GetValue("Release");
if (releaseKey != null)
{
framework = CheckFor45PlusVersion(Convert.ToInt32(releaseKey));
}
else
{
string[] versionNames = null;
using (var installedVersions =
Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP"))
{
if (installedVersions != null) versionNames = installedVersions.GetSubKeyNames();
}
try
{
if (versionNames != null && versionNames.Length > 0)
{
framework = versionNames[versionNames.Length - 1].Remove(0, 1);
}
}
catch (FormatException)
{
}
}
}
}
}
catch (SecurityException)
{
}
return framework != null ? new Version(framework) : null;
}
}
private static string CheckFor45PlusVersion(int releaseKey)
{
if (releaseKey >= 460798)
return "4.7";
if (releaseKey >= 394802)
return "4.6.2";
if (releaseKey >= 394254)
return "4.6.1";
if (releaseKey >= 393295)
return "4.6";
if (releaseKey >= 379893)
return "4.5.2";
if (releaseKey >= 378675)
return "4.5.1";
// This code should never execute. A non-null release key should mean
// that 4.5 or later is installed.
return releaseKey >= 378389 ? "4.5" : null;
}
}
updatespour NET Framework 4.7 et NET Framework 4.7.1 ?
Si votre machine est connectée à Internet, aller à smallestdotnet , télécharger et exécuter le vérificateur .NET est probablement le moyen le plus simple.
Si vous avez besoin de la méthode réelle pour déterminer la version, regardez sa source sur github, esp. le Constants.cs qui vous aidera pour .net 4.5 et versions ultérieures, où la partie Révision est la plus pertinente:
{ int.MinValue, "4.5" },
{ 378389, "4.5" },
{ 378675, "4.5.1" },
{ 378758, "4.5.1" },
{ 379893, "4.5.2" },
{ 381029, "4.6 Preview" },
{ 393273, "4.6 RC1" },
{ 393292, "4.6 RC2" },
{ 393295, "4.6" },
{ 393297, "4.6" },
{ 394254, "4.6.1" },
{ 394271, "4.6.1" },
{ 394747, "4.6.2 Preview" },
{ 394748, "4.6.2 Preview" },
{ 394757, "4.6.2 Preview" },
{ 394802, "4.6.2" },
{ 394806, "4.6.2" },
updatespour NET Framework 4.7 et NET Framework 4.7.1 ?
Je trouve plus facile de travailler avec la Versionclasse:
using Microsoft.Win32;
using System.Runtime.InteropServices;
namespace System.Runtime.InteropServices {
public static class RuntimeInformationEx {
public static Version? GetDotnetFrameworkVersion() {
using var key = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full");
if (key is object) {
if (!Int32.TryParse(key.GetValue("Release", "").ToString(), out var release)) return null;
return release switch
{
378389 => new Version(4, 5, 0),
378675 => new Version(4, 5, 1),
378758 => new Version(4, 5, 1),
379893 => new Version(4, 5, 2),
393295 => new Version(4, 6, 0),
393297 => new Version(4, 6, 0),
394254 => new Version(4, 6, 1),
394271 => new Version(4, 6, 1),
394802 => new Version(4, 6, 2),
394806 => new Version(4, 6, 2),
460798 => new Version(4, 7, 0),
460805 => new Version(4, 7, 0),
461308 => new Version(4, 7, 1),
461310 => new Version(4, 7, 1),
461808 => new Version(4, 7, 2),
461814 => new Version(4, 7, 2),
528040 => new Version(4, 8, 0),
528209 => new Version(4, 8, 0),
528049 => new Version(4, 8, 0),
_ => null
};
} else { // .NET version < 4.5
using var key1 = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP");
if (key1 is null) return null;
var parts = key1.GetSubKeyNames()[^1].Substring(1).Split('.'); // get lastsub key, remove 'v' prefix, and split
if (parts.Length == 2) parts = new string[] { parts[0], parts[1], "0" };
if (parts.Length != 3) return null;
Func<string, int> Parse = s => Int32.TryParse(s, out var i) ? i : -1;
try { return new Version(Parse(parts[0]), Parse(parts[1]), Parse(parts[2])); } catch { return null; }
}
}
public static Version? GetDotnetCoreVersion() {
if (!RuntimeInformation.FrameworkDescription.StartsWith(".NET Core ")) return null;
var parts = RuntimeInformation.FrameworkDescription.Substring(10).Split('.');
if (parts.Length == 2) parts = new string[] { parts[0], parts[1], "0" };
if (parts.Length != 3) return null;
Func<string, int> Parse = s => Int32.TryParse(s, out var i) ? i : -1;
try { return new Version(Parse(parts[0]), Parse(parts[1]), Parse(parts[2])); } catch { return null; }
}
}
}
(le code est C # 8)
"Release"valeurs vers Versions. Je pense que le point clé de l'endroit où ces informations sont stockées dans le registre et dans quel format est bien documenté ici; si c'est présenté à l'appelant comme string, int, enumou Versionest tout simplement mettre un emballage différent sur la même chose.
var v=RuntimeInformationEx .GetDotnetFrameworkVersion(); if (v<new Version(4,8,0) ...
Vous pouvez obtenir une chaîne utile sans avoir à toucher au registre ou aux assemblys de référence qui peuvent ou non être chargés. mscorlib.dll et d'autres assemblys System ont AssemblyFileVersionAttribute défini, et il semble être unique pour chaque version de .NET, en fonction des assemblys de référence fournis avec Visual Studio.
string version = (typeof(string).Assembly
.GetCustomAttributes(typeof(AssemblyFileVersionAttribute), false)
.FirstOrDefault() as AssemblyFileVersionAttribute)?.Version;
La version 4.5 est un peu décalée, car elle est marquée 4.0 dans cette version, mais la version 4.6 semble au moins avoir la version mineure correspondant au moins. Faire cela de cette façon semble être plus à l'épreuve du temps que de dépendre d'une clé de registre du programme d'installation et de devoir comparer avec un ensemble fixe de valeurs.
J'ai trouvé les assemblages de référence ici:
C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework
Où j'ai eu les versions suivantes:
4.0 = 4.0.30319.1
4.5 = 4.0.30319.18020
4.5.1 = 4.0.30319.18402
4.5.2 = 4.0.30319.34211
4.6 = 4.6.81.0
4.6.1 = 4.6.1055.0
4.7.2 = 4.7.3062.0
4.8 = 4.8.3761.0
Essaye celui-là:
string GetFrameWorkVersion()
{
return System.Runtime.InteropServices.RuntimeEnvironment.GetSystemVersion();
}
2.0même s'il tourne avec3.5
Environment.Version()retourne probablement simplement la version du CLR.