Fixed number of columns to span for loading msg

Author: kzhen

Mvc.JQuery.Datatables.Templates/Views/Shared/DataTable.cshtml

@@ -23,7 +23,7 @@
     </thead>
     <tbody>
         <tr>
-            <td colspan="5" class="dataTables_empty">
+            <td colspan="@Model.Columns.Count()" class="dataTables_empty">
                 Loading data from server
             </td>
         </tr>