title: grid view display image
body: <p>i have a ActivityType field in my db. the values are [1,2,3].
  each number represent type of activity.
  i want to present the type in gridview as image.</p>
  
  <p>i have 3 images</p>
  
  <ul>
  <li><p>activity type 1 = avtivity_choise.jpg</p></li>
  <li><p>activity type 2 = activity_text.jpg</p></li>
  <li><p>activity type 3 = activity_count.jpg</p></li>
  </ul>
  
  <p>i have tried to do so with template field but i need switch case statement to transfer the number to image url...</p>