Question

I am trying to get values and set values to the Registry .

When I am trying to access a path that not located at the registry I am getting exception.

But when I am setting that path with Registry.SetValue(keyName, "", 0);, all works fine and I can get non existing values from it.

Any idea why I can’t use my public int GetComponent(string RegKey) function on nun existing paths?

public class LP_Registery
{
    private const string userRoot = "HKEY_CURRENT_USER";
    private const string subkey   = @"Software\PCBMatrix\LPWizard";
    private string keyName;

    public LP_Registery(string folderName) => keyName = userRoot + "\\" +  subkey + "\\" + folderName;
    public int GetComponent(string RegKey) => (int)Registry.GetValue(keyName, RegKey, 0); 
    public void SetComponent(string RegKey, int RegVal) => Registry.SetValue(keyName, RegKey, RegVal, RegistryValueKind.DWord);
}

And if it possible what should i do that it will be possible.

Thanks.

Answer 1

surround the GetValue with try – catch block and enjoy the coding.

Exceptions and Conditions of GetValue:

SecurityException:
The user does not have the permissions required to read from the registry key.

IOException: The RegistryKey that
contains the specified value has been
marked for deletion.

ArgumentException: keyName does not
begin with a valid registry root.

---

SetValue method:

Sets the specified name/value pair on
the specified registry key. If the
specified key does not exist, it is
created.