title: Add a download Hyperlink in gridview in visual studios 2010
body: <p>My problem is simple, I would like to make the last column of my gridview to be a download link to a file in local on my computer. </p>
  
  <p>I have my datatable with 3 columns :</p>
  
  <pre><code>User_id, request_id, FilePath
  </code></pre>
  
  <p>FilePath is the path (string) to the file on my computer, what I've been trying is :
  In my gridview on the webpage display the 2 first columns (User_id and request_id).
  On the 3rd column I added a hyperlink field and tried to link it (with the property DataNavigateUrlField) to the content of the column FilePath.</p>
  
  <p>I've ended up with dead links on which i can't even click, they just change color on mouseover. </p>
  
  <p>Any one have a clue about that ? Thanks a lot</p>