RadDataPager Server Event not firing

[Rob]

Hi,

I've been knocking my head against this problem for a full day now - any help will be very much appreciated.

I have a databound RadPanelBar, each Panel contains a set of search results. The display of results is encapsulated in a user controls, SearchResults. The user control is instantiated in the item template of the panel bar, and on databinding, it's event delegates are set - yest these are never called when the datapager posts back from the client.

The markup looks like this:

<telerik:RadPanelBar ID="resultsPanelBar" runat="server" ExpandMode="FullExpandedItem" >
    <ItemTemplate>
        <telerik:RadAjaxPanel ID="wrapperPanel" runat="server" RequestQueueSize="10">
            <telerik:RadXmlHttpPanel RequestQueueSize="4" LoadingPanelID="searchLoadingPanel" ID="resultsUpdatePanel" runat="server">
                <selfsvc:SearchResults ID="searchResult" runat="server" />
            </telerik:RadXmlHttpPanel>
        </telerik:RadAjaxPanel>
    </ItemTemplate>
</telerik:RadPanelBar>

The databinding code sets the delegates for the pager's server events as follows:

void resultsPanelBar_ItemDataBound(object sender, Telerik.Web.UI.RadPanelBarEventArgs e)
{
    string sourceName = ((KeyValuePair<string, string>)e.Item.DataItem).Key;
    RadXmlHttpPanel panel = (RadXmlHttpPanel)e.Item.FindControl("resultsUpdatePanel");
    if (panel != null)
    {
        selfService.UserControls.SearchResults results = (selfService.UserControls.SearchResults)panel.FindControl("searchResult");
        if (results != null)
        {
            results.SourceName = sourceName;
            RadDataPager pager = (RadDataPager)results.FindControl("RadDataPager1");
            if (pager != null)
            {
                pager.Command += new EventHandler<RadDataPagerCommandEventArgs>(pager_Command);
                pager.PageIndexChanged += new EventHandler<RadDataPagerPageIndexChangeEventArgs>(pager_PageIndexChanged);
            }
        }
        clientPnlSrcMap.Add(panel.ClientID, sourceName);
        panel.ServiceRequest += new XmlHttpPanelEventHandler(panel_ServiceRequest);
    }

[Maria Ilieva]

Hello Rob,

Please note that you should not use wrapped RadAjaxPanel and RadXmlHttpPanel. Also you have placed server control into the RadXmlHttpPanel which is not correct and will not work properly. I would suggest you to remove the RadXmlHttpPanel and use only RadAjaxPanel to ajaxify the needed content. Give this a try and let me know if ti makes any difference. Also please refer to the following online help topic which elaborates on what the RadXmlHttpPanel exactly is and in which case it should be used.


Kind regards,
Maria Ilieva
the Telerik team

[Maria Ilieva]

Hello Rob,

Please note that you should not use wrapped RadAjaxPanel and RadXmlHttpPanel. Also you have placed server control into the RadXmlHttpPanel which is not correct and will not work properly. I would suggest you to remove the RadXmlHttpPanel and use only RadAjaxPanel to ajaxify the needed content. Give this a try and let me know if ti makes any difference. Also please refer to the following online help topic which elaborates on what the RadXmlHttpPanel exactly is and in which case it should be used.


Kind regards,
Maria Ilieva
the Telerik team

[Rob]

Thanks Maria, I have re-worked my solution.

I had however, been trying to achieve the functionality described in this demo:

http://demos.telerik.com/aspnet-ajax/xmlhttppanel/examples/gridinxmlhttppanel/defaultcs.aspx

Is this scenario no longer supported? I could have saved a great deal of time had I known.

[Rob]

Hi,

Thanks again for your assistance. Could you answer my question in this post regarding: http://demos.telerik.com/aspnet-ajax/xmlhttppanel/examples/gridinxmlhttppanel/defaultcs.aspx

Thanks,
Rob.

[Maria Ilieva]

Hi Rob,

The mentioned demo actually presents a scenario in which you could use the RadXmlHttpPanel with server controls and in order to have the server events of those controls works correctly RadAjaxPanel I also added. However note that this could not be applicable in all cases and for all server controls. i already discuss this implementation with my colleagues responsive for the RadXmlHttpPanel demos and we decide to remove this one from our site in order to avoid confusing our customers.
Thank you for bringing this to our attention.

Kind regards,
Maria Ilieva
the Telerik team

[Rob]

HI Maria,

Thank you very much for clearing that up for me.

Rob.