Display a loading screen while generating a PDF and writing to the http response stream

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katie

Posted: Sunday, September 23, 2012 11:39:25 AM

Rank: Member
Groups: Member

Joined: 12/7/2007
Posts: 21

I have looked everywhere and seemed to have tried every solution offered, with no success. Is it possible to display a loading screen when generating a PDF and writing the PDF to the http response stream?
I am using EO.pdf and this is rendering the PDF perfectly, it is just taking a while and I need to let the user know a process is occurring.

I have managed to get the loading screen displaying but then can't hide it once the PDF is generated as I call response.End().

I also tried the code below, but add_endRequest does not fire.

Code: JavaScript

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var prm = Sys.WebForms.PageRequestManager.getInstance();
         prm.add_initializeRequest(postbackButtonClick);
         prm.add_endRequest(postbackButtonClose);
         var postBackElement;

         function postbackButtonClick() {
             
             document.getElementById('<% Response.Write(UpdateProgress1.ClientID); %>').style.display = "inline";
         }
         function postbackButtonClose() {
             document.getElementById('<% Response.Write(UpdateProgress1.ClientID); %>').style.display = "none";
         }

Any ideas would be very much appreciated.

Thanks

eo_support

Posted: Sunday, September 23, 2012 8:46:12 PM

Rank: Administration
Groups: Administration

Joined: 5/27/2007
Posts: 24,071

Hi,

I think you are chasing a ghost ---- your response is EITHER a PDF document OR a HTML document (JavaScript goes with HTML document). You can't have both.

Thanks

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