title: Add new coloumn in design view failed
body: <p>I have a DB table.This table has a data(Already data in that table).I wanted to add new coloumns to the database.I tried it in using Design View but CANT.Is there any way to do it.. Need to Change Coloumna name &amp; SPECIALLY add new coloumns.. No data loss.</p>
  
  <p>DB - SQL SERVER 2008 R2</p>
  
  <p>I tried to add Name filed,thats NULL</p>
  
  <p><img src="https://i.stack.imgur.com/T1iKX.png" alt="img"></p>
  
  <p>When i go to SAVE it,i got this error</p>
  
  <p><img src="https://i.stack.imgur.com/tAXtk.png" alt="error"></p>