title: Updating your edmx to reflect changes made in your db (.net linq-to-entities)
body: <ul>
  <li>So I have my edmx made.  </li>
  <li>Then I change my database a little bit, changing a column to from being a NOT NULL to allowing NULL.</li>
  <li>I go into my edmx, right click and choose "Update Model from Database"</li>
  </ul>
  
  <p>Now I go into my program and it hasnt actually updated... I can't put a null in the column.  What do I have to do to update the edmx properly?  Thank you.</p>