Ajax, Response.BinaryWrite, pdf

[Thomas Gross]

I am absulutly despaired. I build a very nice page with your controls.
at the end of the project I have to create a pdf file with all the results from the input of this page.
So i place a ImageButton on the page. This button should not be shown at every situation. So i make it visible or not and put it to the RadAjaxManger. With a third party tool from expertPDF (www.html-to-pdf.net) I want to create my pdf after clicking on the image button.
And than I get the same problem described in this posting:
http://www.codeproject.com/Messages/2617925/ASP-Net-AJAX-Response-Write-and-PDF.aspx

I search for this problem for many hours and I am getting so unhappy now, because I want to filalize my project... please help me ...
thomas

[Daniel]

Hello Thomas,

This topic will help you sidestep the problem easily:
Export from ajaxified grid

Best regards,
Daniel
the Telerik team

[Thomas Gross]

Hallo again,

i know this code and i try it in this way.
Concrete i put in the master page with include my immagebutto ibtPdf

 

<telerik:RadPane ID="Fusszeile" runat="server" Height="37" BackColor="#5e696a" Scrolling="None">

 

 

 

<div id="FooterNav" runat="server" class="footer_nav_right">

 

 

<div style="margin-right: 30px; float: right">

 

 

<asp:ImageButton ID="ibtPdf" runat="server" ImageUrl="Images/create_pdf.png" ToolTip="create PDF" OnClick="ibtPdf_Click"

 

 

Visible="true" />

 

 

</div>

 

the following javascript

<

 

telerik:RadCodeBlock ID="RadCodeBlock2" runat="server">

 

 

<script type="text/javascript">

 

 

function onRequestStart(ajaxManager, eventArgs) {

 

 

 

if (eventArgs.EventTarget.indexOf("ibtPDF") != -1) {

 

 

eventArgs.EnableAjax =

false;

 

 

}

 

}

 

 

</script>

 

 

</

 

telerik:RadCodeBlock>

 

and the following code for the AjaxManager

 

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server" OnAjaxRequest="RadAjaxManager1_AjaxRequest" EnableAJAX="True" ClientEvents-OnRequestStart="onRequestStart">

 

 

<ClientEvents OnRequestStart="onRequestStart" />

 

 

<telerik:AjaxSetting AjaxControlID="radMainMenu">

 

 

<UpdatedControls>

 

 

<telerik:AjaxUpdatedControl ControlID="pnlPageInfoBoxHeaderText" />

 

 

<telerik:AjaxUpdatedControl ControlID="RedBarText" />

 

 

<telerik:AjaxUpdatedControl ControlID="CalculatorWizard" />

 

 

<telerik:AjaxUpdatedControl ControlID="MovePreviousButton" />

 

 

<telerik:AjaxUpdatedControl ControlID="MoveNextButton" />

 

<%

--<telerik:AjaxUpdatedControl ControlID="ibtPdf" />--%> <telerik:AjaxUpdatedControl ControlID="ibtPdf" />

 

 

<telerik:AjaxUpdatedControl ControlID="ibtSendEmail" />

 

 

<telerik:AjaxUpdatedControl ControlID="divPageInfoTooltip" />

 

 

</UpdatedControls>

 

 

</telerik:AjaxSetting>

 

but i get on error in the file TransientScriptDocument164.axd at the following code

try

 

{a._webRequest.completed(Sys.EventArgs.Empty)}finally{if(a._xmlHttpRequest!=null)

 

Laufzeitfehler in Microsoft JScript: Sys.WebForms.PageRequestManagerParserErrorException: Die vom Server empfangene Nachricht konnte nicht analysiert werden. Häufige Ursachen für diesen Fehler sind: Änderung der Antwort durch Aufrufe von Response.Write(), Antwortfilter, HttpModules oder aktivierte Serverablaufverfolgung.
Details: Fehler beim Analysieren in der Nähe von "%PDF-1.4
%????
%Cr".

When i put a breakpoint to the javascript it stops at every situation but not when i click my immagebutton.

Please help me, i have no father idears.

thanks
thomas

[Daniel]

Hello Thomas,

You have to add a separate setting for the initiator button - otherwise the event won't be triggered when you click on the export button.

Copy Code

<telerik:AjaxSetting AjaxControlID="ibtPdf">
    <UpdatedControls>
        ....
    </UpdatedControls>
</telerik:AjaxSetting>

Also I noticed that you have attached the OnRequestStart event twice.

Best regards,
Daniel
the Telerik team

[Thomas Gross]

You are great. It solve my problem. You make me happy.
Thank for the your very good support and your nice development tool
Fantastic
thomas