CSharp - Operator nameof Operator

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Introduction

nameof operator returns the name of any symbol, such as type, member, variable etc., as a string. 

int count = 123;
string name = nameof (count);       // name is "count"

To get the name of a type member such as a field or property, include the type as well.

This works with both static and instance members: 

string name = nameof (StringBuilder.Length);

This evaluates to "Length".

To return "StringBuilder.Length": 

nameof (StringBuilder) + "." + nameof (StringBuilder.Length);
using System;
class MainClass
{
   public static void Main(string[] args)
   {

       string name = nameof (StringBuilder.Length);
       Console.WriteLine(name);

   }
}