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private static bool GetDotNetVersion(string version)
{
string oldname = "0";
using (RegistryKey ndpKey =
RegistryKey.OpenRemoteBaseKey(RegistryHive.LocalMachine, "").
OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\"))
{
foreach (string versionKeyName in ndpKey.GetSubKeyNames())
{
if (versionKeyName.StartsWith("v"))
{
RegistryKey versionKey = ndpKey.OpenSubKey(versionKeyName);
string newname = (string)versionKey.GetValue("Version", "");
if (string.CompareOrdinal(newname, oldname) > 0)
{
oldname = newname;
}
if (newname != "")
{
continue;
}
foreach (string subKeyName in versionKey.GetSubKeyNames())
{
RegistryKey subKey = versionKey.OpenSubKey(subKeyName);
newname = (string)subKey.GetValue("Version", "");
if (string.CompareOrdinal(newname, oldname) > 0)
{
oldname = newname;
}
}
}
}
}
return string.CompareOrdinal(oldname, version) > 0;
}
参数写4.5试试
private void GetDotNetVersion()
{
List<string> list = new List<string>();
string oldname = "0";
using (RegistryKey ndpKey =
RegistryKey.OpenRemoteBaseKey(RegistryHive.LocalMachine, "").
OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\"))
{
foreach (string versionKeyName in ndpKey.GetSubKeyNames())
{
if (versionKeyName.StartsWith("v"))
{
RegistryKey versionKey = ndpKey.OpenSubKey(versionKeyName);
string newname = (string)versionKey.GetValue("Version", "");
if (newname != "")
{
list.Add(newname);
continue;
}
foreach (string subKeyName in versionKey.GetSubKeyNames())
{
RegistryKey subKey = versionKey.OpenSubKey(subKeyName);
newname = (string)subKey.GetValue("Version", "");
list.Add(newname);
}
}
}
}
}
这段判断的代码不也能获取的已安装的版本号么