Checkbox column and Expand Collapse in gridview – Is there any best way to handle these two.

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Hi,
I have gridview in my ASP.Net web page in which I have Expand/Colapse as first column and Check box column in second. When ever I expand a column I should get check box for that rows only and hide when collapsed. Currently, I am handling this manually, but some other unusual thing happens. Is there any best way in this.
Please suggest
Thanks
Sreenath

Posted 28-Apr-11 23:29pm

Sreenath Gv

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Rashmi_Karnam · Answer 1 · 2011-04-28T23:58:00

If You are using AJAX then below is solution

<code>
<asp:GridView ID="gvOrderEntry" AutoGenerateColumns="false" runat="server" ShowHeader="false">
<Columns><asp:TemplateField><ItemTemplate>
<tr> <td>
<asp:Panel ID="pnlExpander" runat="server"><asp:Image ID="imgCollapsible" ImageUrl="../Images/Collapse Down.gif" class="imgVA" runat="server" />
</asp:Panel>
</td></tr>
<tr><td>
<asp:Panel ID="pnlDetails" runat="server"><asp:
Add CheckBox here....
</asp:Panel>
<ajaxToolkit:CollapsiblePanelExtender ID="cpExtender" runat="Server" TargetControlID="pnlDetails" ExpandControlID="pnlExpander" CollapseControlID="pnlExpander" Collapsed="true" CollapsedSize="0" ExpandedImage="../images/Collapse Up.gif" CollapsedImage="../Images/Collapse Down.gif" ImageControlID="imgCollapsible" ExpandedText="expanded" CollapsedText="collapsed" ExpandDirection="Vertical" SuppressPostBack="true"> </ajaxToolkit:CollapsiblePanelExtender>
</td></tr>
</ItemTemplate></asp:TemplateField></Columns>
</asp:Gridview>
</code>

If AJAX is not used then you can add Gridview RowCommand event and handle imgCollapsible event by passing commandName.
Instead of asp:Image use asp:ImageButton, so that rowcommand event will fire. In RowCommand event you can set second <tr> visible true & false - which works similar to AJAX collapsible extender.

Regards,
Rashmi.MK