How do I recognize dynamic buttons as triggers for updating updatepanels?

I have two updatepanels on a page each with a datagrid inside the panels. I need updatepanel B to update it's datagrid when a LinkButton is clicked inside udatepanel A's datagrid. The linkbuttons are dynamically generated for each row of the datagrid.

Thanks

Braden

Stripped Down Example:

<asp:UpdatePanel id="pnl1" runat="server">
<ContentTemplate>
<asp:datagrid id="dgA" runat="server" > ... <asp:LinkButton ID="lbtnSelect" CommandArgument=' ... ' runat="server">...</asp:LinkButton> ... </asp:datagrid>
</ContentTemplate>
</asp:UpdatePanel>

<!-- Next Panel -->

<asp:UpdatePanel id="pnl2" runat="server">
<ContentTemplate>
<asp:datagrid id="dgB" runat="server" > ... </asp:datagrid>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="lbtnSelect" EventName=" ... "/>
</Triggers>
</asp:UpdatePanel>

Unless I misread your post, I think that all you need to do is add the following line inside of your event handler for the link buttons (lbtnSelect_Click, or similar):

pnl2.update();

This should update your pnl1 because the linkbutton's click event fired inside of pnl1, andprogrammatically updating pnl2 with pnl2.update() should take care of updating the other datagrid (dgB). You can get rid of the <Triggers> definition too.

How do I dynamically create updatepanel and then contenttemplate linkbutton and triggers a

I need to be able to create multiple updatepanels which have a link button in them. I have no idea how many updatepanels I'm going to have which have link buttons as the data coming back is from a database. Right now I'm taking the data from a database and putting that into a datalist.

It all works great until I wanted to add a updatepanel to it; then it said the updatepanel cannot be used in that context. So, if it cannot be as simple as what I tried below, how do I dynamically create an updatepanel for each row of data returned from the database?

Each row in the database has a unique ID so the ID of the linkbutton and the asyncpostbacktrigger controlid could be assigned that unique ID.

This works fine without adding updatepanel:
<asp:ScriptManager ID="ajaxClientComponentMgr" EnablePartialRendering="true" runat="server">
<Services>
<asp:ServiceReference Path="~/AjaxWebService.asmx" InlineScript="true" />
</Services>
<Scripts>
<asp:ScriptReference Path="~/Javascript/ajaxJScript.js" />
</Scripts>
</asp:ScriptManager>

<asp:DataList ID="DataSource_Stories_Display" runat="server">
<ItemTemplate>
<asp:Table CssClass="stories_table_block" runat="server">
<asp:TableRow runat="server">
<asp:TableCell CssClass="stories_right_content" runat="server">
<span class="stories_content_header"><%#DataBinder.Eval(Container.DataItem, "Title Name:")%></span><br />
</asp:TableCell>
</asp:TableRow>
</asp:Table>
</ItemTemplate>
</asp:DataList>

This complains of being "not in this context" after adding updatepanel:
(Note: unique_id_for_this_link added just to show that each iteration would have a unique number at that location)

<asp:ScriptManager ID="ajaxClientComponentMgr" EnablePartialRendering="true" runat="server">
<Services>
<asp:ServiceReference Path="~/AjaxWebService.asmx" InlineScript="true" />
</Services>
<Scripts>
<asp:ScriptReference Path="~/Javascript/ajaxJScript.js" />
</Scripts>
</asp:ScriptManager>

<asp:DataList ID="DataSource_Stories_Display" runat="server">
<ItemTemplate>
<asp:Table CssClass="stories_table_block" runat="server">
<asp:TableRow runat="server">
<asp:TableCell CssClass="stories_right_content" runat="server">
<span class="stories_content_header"><%#DataBinder.Eval(Container.DataItem, "Title Name:")%></span><br />

<asp:UpdatePanel ID="something_unique_id_for_this_panel" ChildrenAsTriggers="False" UpdateMode="Conditional" runat="server">
<ContentTemplate>
<asp:LinkButton ID="unique_id_for_this_link" OnClientClick="paneDataRequest();return false;" CssClass="story_link" runat="server">Click Me</asp:LinkButton>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="unique_id_for_this_link" />
</Triggers>
</asp:UpdatePanel>

</asp:TableCell>
</asp:TableRow>
</asp:Table>
</ItemTemplate>
</asp:DataList>

UPDATE: Okay...Swapping where UpdatePanel was located fixed part of the issue.

UpdatePanel, if it is outside of Datalist will work as follows:

<asp:UpdatePanel ChildrenAsTriggers="False" UpdateMode="Conditional" runat="server">
<ContentTemplate>
<asp:DataList ID="DataSource_Stories_Display" runat="server">
<ItemTemplate>
<asp:Table CssClass="stories_table_block" runat="server">
<asp:TableRow runat="server">
<asp:TableCell CssClass="stories_right_content" runat="server">
<span class="stories_content_header"><%#DataBinder.Eval(Container.DataItem, "Title Name:")%></span><br />
<asp:LinkButton OnClientClick="paneDataRequest();return false;" CssClass="story_link" runat="server">Click Me</asp:LinkButton>
</asp:TableCell>
</asp:TableRow>
</asp:Table>
</ItemTemplate>
</asp:DataList>
</ContentTemplate>
<Triggers>
</Triggers>
</asp:UpdatePanel>

New problem discovered!

If I try to assign an ID to the asp:LinkButton (a unique value for each row of database data) I just end up getting all types of errors:

<asp:LinkButton id="some_unique_id" OnClientClick="paneDataRequest();return false;" CssClass="story_link" runat="server">Click Me</asp:LinkButton>

If the ID is omitted, it works fine...not what I'm after.

Next Question:

How do I assign a unique ID number to LinkButton? If I cannot assign it, how can I determine the IDs which are assigned to it so that I can build the <triggers></triggers> part of the updatepanel control?

UPDATE 2:

Visual Studio .Net Beta 2, using the scenario above from second post, does not auto-generate IDs (when you view source of the generated page) for:

<asp:LinkButtonOnClientClick="paneDataRequest();return false;"CssClass="story_link"runat="server"></asp:LinkButton>

Visual Studio .Net Beta 2, using the scenario above from second post, does auto-generate name values (although not IDs) for buttons such as:

<asp:ButtonOnClientClick="paneDataRequest();return false;"Text="default"runat="server"></asp:Button>