DataGridView with AJAX Modal popup extender

cocoonwls

hi all, I am using VS 2005,C# with framework 2.0 and AJAX toolkit. I got a datagridview and already create a CommandField, button type. I would like to display particular row details by modalpopup extender. Currently i am using code behind (gridview_SelectedIndexChanged to get neccesarry data) and method modalpopupextender.Show() to acheive it,but its is pretty slow when browse via internet (its ok if browse locally). My coding is show like below: aspx:

OnSelectedIndexChanged="DataGridProduct_SelectedIndexChanged" AutoGenerateColumns="False">

          Description&lt;/HeaderTemplate>
          <%# Limit(Eval("ProdDesc"),25)%>
    </asp:TemplateField>

</Columns>

modalpopup

<cc1:ModalPopupExtender ID="mpeProduct" runat="server" TargetControlID="Button1" PopupControlID="panelProduct" CancelControlID="btnClose" BackgroundCssClass="modalBackground" PopupDragHandleControlID="panelDrag" Drag="true">
</cc1:ModalPopupExtender>

aspx.cs

protected void DataGridProduct_SelectedIndexChanged(object sender, EventArgs e)
{
if (DataGridProduct.SelectedDataKey[4].ToString() == "Horizontal")
{
lblProductCode.Text = DataGridProduct.SelectedDataKey[0].ToString();
lblProductName.Text = DataGridProduct.SelectedDataKey[1].ToString();
txtProductSpec.Text = DataGridProduct.SelectedDataKey[2].ToString();
txtProductDescription.Text = DataGridProduct.SelectedDataKey[3].ToString();
ImgDisplay.ImageUrl = DataGridProduct.SelectedDataKey[5].ToString().Trim();
mpeProduct.Show();
}
}

so,can i use client script to acheive it, get datagridrow's data and display in modalpopup extender? any advice and tips are welcome, thanks in advance regards cocoonwls