title: how to store multiple datatable into a single dataset
body: <p>I have multiple datatable. I want to show all the datatable rows into a single gridview.
  How can I do that?</p>
  
  <pre><code>DataTable dtbag101 = (DataTable)Session["bag101"];
  DataTable dtwallet111 = (DataTable)Session["wallet111"];
  
  
  DataSet ds= new DataSet();
  ds.Tables.Add(dtbag101);
  ds.Tables.Add(dtwallet111);
  
  GridView1.DataSource= ds;
  GridView1.DataBind();
  </code></pre>
  
  <p>The column names for both datatable are the same.
  Here I was trying to use dataset but only first DataTable i.e. datbag101 was showing in the gridview.</p>
  
  <p>How can I show all the values in one gridview?</p>