C# winform 檢測當前電腦安裝的.net framework版本

private static bool GetDotNetRelease(int release)

{

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)

{

return (int)ndpKey.GetValue("Release") >= release ? true : false;

}

return false;

}

}

 

//release是你須要檢測的版本號，好比.NET4.0，輸入4