RadAjaxLoadingPanel with EO.PDF

[Nelson]

Hi,

I want to show the Loading Panel when user click on the "print" button. For the printing function, i use the third party component "EO.PDF" to render the current page to PDF file. The pdf cannot show up when i click "Print" and when i click on the button again it showed error as follow.

Only items of type Telerik.Web.UI.IRadToolBarButton can initiate postbacks

The function works fine when i remove the loadingpanel. Please advise.

Cheers, 
Nelson

    <eo:ASPXToPDF ID="ASPXToPDF1" runat="server">
    </eo:ASPXToPDF>
    <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
        <AjaxSettings>
            <telerik:AjaxSetting AjaxControlID="rtbMain">
                <UpdatedControls>
                    <telerik:AjaxUpdatedControl ControlID="pnlContent" LoadingPanelID="RadAjaxLoadingPanel1" UpdatePanelRenderMode="inline"/>
                </UpdatedControls>
            </telerik:AjaxSetting>
        </AjaxSettings>
    </telerik:RadAjaxManager>

    <telerik:RadToolBar ID="rtbMain" runat="server" Width="100%">
        <Items>
            <telerik:RadToolBarButton Text="Print" Value="Print" Width="80px">
            </telerik:RadToolBarButton>
         </Items>
    </telerik:RadToolBar>
    <asp:Panel ID="pnlContent" runat="server">
    </asp:Panel>

    <telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server" BackgroundPosition="Top" Skin="Vista"  >
    </telerik:RadAjaxLoadingPanel>

Codebehind
    Protected Sub rtbMain_ButtonClick(ByVal sender As Object, ByVal e As Telerik.Web.UI.RadToolBarEventArgs) Handles rtbMain.ButtonClick
         If e.Item.Value = "Print" Then
             EO.Pdf.Runtime.AddLicense( "XXXXXX")
            ASPXToPDF1.RenderAsPDF("Report.pdf")
        End If
End Sub

Cheers, 
Nelson

[Maria Ilieva]

Hi Nelson,

I'm not completely sure how exactly the  "EO.PDF"  components works however note that export functionality does not works with ajax requests and this scenario are not supported. Please review the following online topics which elaborates on this matter:
http://www.telerik.com/help/aspnet-ajax/grid-export-with-ajax-enabled.html
http://www.telerik.com/help/aspnet-ajax/ajax-exclude.html
http://www.telerik.com/help/aspnet-ajax/grid-postback-from-grid-with-ajax-enabled.html

Kind regards,
Maria Ilieva
the Telerik team

[Elias]

Hi Nelson,

I have the same problem. After the exporting to excel, the print cause this error.

You've managed to solve this problem?

Thanks!

[Nelson]

Hi  Elias, 

Cannot find any solution yet.