ASP.net download page
- by Russel
Hi
I have a Reports.aspx ASP.NET page that allows users to download excel report files by clicking on several hyperlinks. When a report hyperlink is clicked, I open a new window using the javascript window.open method and navigate off to the download.aspx page. The code-behind for the download page creates a excel file on the fly using openxml(in memory) and send it back to the browser. Here is some code from the download.aspx page:
byte[] outputFileBytes = CreateExcelReport().ToArray();
Response.Clear();
Response.BufferOutput = true;
Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
Response.AddHeader("Content-Disposition", string.Format("attachment; filename={0}", "tempReport.xlsx"));
Response.BinaryWrite(outputFileBytes);
Response.Flush();
Response.Close();
Response.End();
My problem : Some of these reports take some time to generate. I would like to display a loading.gif file on my Reports.aspx page, while the download.aspx page is requested. Once the page request is completed, the loading.gif file should be made invisible.
Is there a way to achieve this. Perhaps some kind of event. I have mootools to my disposal.
Thanks
PS. I know that generating reports like this is not ideal, but thats a different story all together...
