title: Merge the data in gridview
body: <p>In Gridview records as follows;</p>
  
  <pre><code>Date                   Session
  
  
  6-jun                     1
  
  6-jun                     2
  
  6-jun                     3
  
  6-jun                     4
  </code></pre>
  
  <p>from the above datagridview records i want as follows</p>
  
  <pre><code> Date          Session
  
                   1
  
                   2 
    6-jun  
                   3
  
                   4
  </code></pre>
  
  <p>for that how can i merge the date in gridview make it into single column.</p>
  
  <p>for that how can i do?</p>