标签:amp bsp code cal soft setup get empty minor
static void GetNetVersionDemo() { using (RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32).OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\")) { foreach(var versionKeyName in ndpKey.GetSubKeyNames()) { //Skip .NET Framework 4.5 version information. if(versionKeyName=="v4") { continue; } if(versionKeyName.StartsWith("v")) { RegistryKey versionKey = ndpKey.OpenSubKey(versionKeyName); //Get the .NET Framework version value. var name = (string)versionKey.GetValue("Version", ""); //Get the service pack number. var sp = versionKey.GetValue("SP", "").ToString(); //Get the installation flag,or an empty string if there is none. var install = versionKey.GetValue("Install", "").ToString(); if(string.IsNullOrEmpty(install)) { Console.WriteLine($"{versionKeyName} {name}"); } else { if(!string.IsNullOrEmpty(sp) && install=="1") { Console.WriteLine($"{versionKeyName} {name} SP{sp}"); } } if(!string.IsNullOrEmpty(name)) { continue; } foreach(var subKeyName in versionKey.GetSubKeyNames()) { RegistryKey subKey = versionKey.OpenSubKey(subKeyName); name = (string)subKey.GetValue("Version", ""); if(!string.IsNullOrEmpty(name)) { sp = subKey.GetValue("SP", "").ToString(); } install = subKey.GetValue("Install", "").ToString(); if(string.IsNullOrEmpty(install)) { Console.WriteLine($"{versionKeyName} {name}"); } else { if((!string.IsNullOrEmpty(sp)) && install=="1") { Console.WriteLine($"{subKeyName} {name} SP{sp}"); } else if(install=="1") { Console.WriteLine($"{subKeyName} {name}"); } } } } } } }
using Microsoft.Win32; static void Main(string[] args) { GetDotNetFrameworkVersion(); Console.ReadLine(); } static void GetDotNetFrameworkVersion() { const string subKey = @"SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full"; using (var ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32).OpenSubKey(subKey)) { if(ndpKey!=null && ndpKey.GetValue("Release")!=null) { var objResult = ndpKey.GetValue("Release"); var versionResult = CheckFor45PlusVersion((int)objResult); Console.WriteLine($".NET Framework Version:{versionResult}"); } else { Console.WriteLine(".NET Framework Version 4.5 or later is not detected!"); } } } //Convert the Main.Minor.Build.Revision 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>=393295) { return "4.5.2"; } if(releaseKey>=378675) { return "4.5.1"; } if(releaseKey>=378389) { return "4.5"; } return "No 4.5 or later version detected!"; }
C# detect latest .net framework installed on PC
标签:amp bsp code cal soft setup get empty minor
原文地址:https://www.cnblogs.com/Fred1987/p/11954327.html