How clear error gridview
<p>I have designing in my web page.</p>

<p>I have used the gridview, I have used the gridview <code>delete</code> option. Get the following error,</p>

<blockquote>
  <p>Multiple controls with the same ID
  'Ddl' were found. FindControl requires
  that controls have unique IDs.</p>
</blockquote>

<p>My code is as follows,</p>

<pre><code>protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
   Label Amount = (Label)(DisplayGrid.Rows[e.RowIndex].FindControl("lblAmount"));
 Label Account = (Label)(DisplayGrid.Rows[e.RowIndex].FindControl("ddlAccount"));
   DataTable dt = new DataTable();
   dt = CreateDataTable();
   dt = (DataTable)Session["myDatatable"];
   dt.DefaultView.AllowDelete = true;



   dt.DefaultView.Delete(e.RowIndex);
   dt.AcceptChanges();

   Session["myDatatable"] = dt;

        BindGrid();
    }
</code></pre>
