Gridview with checkboxes
ASP.NET
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I have a gridview where I have checkboxes on each row. You can select the checkboxes and then hit a download button. The code returns back a multipaged pdf with the files you checkboxed. How to do you use updateprogress to show the user that I am doing a process and to keep them from hitting download more than once. I tried with a button, but I am getting
Sys.WebForms.PageRequestManagerParserErrorException:
When I try a link button, the PDF is generated and downloaded, but no ajax updateprogress is visible. Thanks