title: OnRowUpdating event and TextBox_TextChanged Event not fired
body: <p>I am showing the Grid with one link button, if i click that, it will show a GridView like a dialog(Popup).That Grid is,</p>
  
  <pre><code>&lt;asp:GridView ID="HistoryGrid" runat="server" AutoGenerateColumns="false" AllowSorting="True"
          CellPadding="4" ForeColor="Black" AllowPaging="True" Font-Size="9pt" BackColor="White"
          BorderColor="#DEDFDE" Width="100%" BorderWidth="1px" GridLines="Vertical" PageSize="10" 
          OnRowEditing="HistoryGrid_RowEditing" OnRowCancelingEdit="HistoryGrid_RowCancelingEdit" OnRowUpdating="HistoryGrid_RowUpdating"
          OnRowUpdated="HistoryGrid_RowUpdated" OnRowDataBound="HistoryGrid_RowDataBound" &gt;
  </code></pre>
  
  <p>and the HistoryGrid has one Column contains TextBox.</p>
  
  <pre><code>&lt;Columns&gt;
          &lt;asp:TemplateField&gt;&lt;EditItemTemplate&gt;
                  &lt;asp:TextBox ID="DateTxt" CssClass="datepick" runat="server" AutoPostBack="true" OnTextChanged="DateTxt_TextChanged" Font-Size="8.3pt" &gt;&lt;/asp:TextBox&gt;
                  &lt;/EditItemTemplate&gt;&lt;/asp:TemplateField&gt;
  </code></pre>
  
  <p>Now the Problem Is the TextBox_TextChanged Event and The HistoryGrid_RowUpdating event are not Firing.</p>
  
  <p>Code Behind</p>
  
  <pre><code>protected void DateTxt_TextChanged(object sender, EventArgs e)
  {
   //code
  }
  
  protected void HistoryGrid_RowUpdating(object sender, GridViewUpdateEventArgs e)
  {
   //code
  }
  </code></pre>