title: How can i add a new Function or Property on textbox class's text property
body: <p>I want to add one more function/property to a text property of a textbox like this.
  <code>txtControl.Text.IsEmpty();</code> or <code>txtControl.Text.IsEmpty;</code>
  which returns me bool value.</p>
  
  <p>I dont want to compare for empty string every time.</p>
  
  <p>i.e. 
  <code>if(txtControl.text==string.Empty) 
  {} 
  else
  {}</code></p>
  
  <p>Can we do some other way also</p>
  
  <p>if just want to do it like
  <code>if(txtControl.text.isEmpty){}</code></p>