title: asp.net grid view bound field to text box
body: <p>I have a boundfield in a gridview. How can I change the boundfield to a textbox only for a specific column?</p>
  
  <p>I tried </p>
  
  <pre><code>BoundField colname= new BoundField();
  grid.Columns.Add(colname as TextBox);
  </code></pre>
  
  <p>But it goves a cast expression</p>