How to check if a registry value exists using C#?

Question

How to check if a registry value exists by C# code? This is my code, I want to check if \'Start\' exists.

public static bool checkMachineType()
{
    Registr         


        

Answer 1

string keyName=@"HKEY_LOCAL_MACHINE\System\CurrentControlSet\services\pcmcia";
string valueName="Start";
if (Registry.GetValue(keyName, valueName, null) == null)
{
     //code if key Not Exist
}
else
{
     //code if key Exist
}