title: nameof expression in .net framework 4
body: <p>"nameof" expression is introduced in Visual Studio 2015 and c# 6</p>
  
  <p><a href="https://msdn.microsoft.com/en-us/library/dn986596%28v=vs.140%29.aspx">nameof (C# and Visual Basic Reference)</a></p>
  
  <p>How can u use it or write a similar method in older versions like .net framework 4.</p>