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

public bool ValueExists(RegistryKey Key, string Value)
{
   try
   {
       return Key.GetValue(Value) != null;
   }
   catch
   {
       return false;
   }
}

This simple function will return true only if a value is found but it is not null, else will return false if the value exists but it is null or the value doesn't exists in the key.

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USAGE for your question:

if (ValueExists(winLogonKey, "Start")
{
    // The values exists
}
else
{
    // The values does not exists
}