Is there a way to extract name of the instantiated object?

Hello all, I have the following hypothetical code snippet:

NumericUpDown MyNud = new NumericUpdown();
string s = GetName(MyNud);
...
...
private string GetName (NumericUpDown nud)
{
     string returnString = string.Empty;
   
     // What do I have to do, or is this possible at all, so that
     // returnString can be set to "MyNud" ?
   
    return returnString;    
}