Export to Excel not working in published web app

Question

I have an app hosted on a server; one of the functions of the app is to export some calculated results to a spreadsheet (excel). The function works when I run the app in debug mode on both my local machine and on the server (VS2010). However, when I hit the Export to Excel button on the published version I get the "spinning wheel" until I stop it.

Suggestions?

Rodney Johnson · Answer

Thank you Karthik. I will give this a shot and let you know how it goes. For the sake of clarity I will add EnableEventValidation=false to the .aspx page declaration of the page containing the Export to Excel button.

Karthik Che · Answer

Try the Below Code: In that Line Give : EnableEventValidation=false I had Same Problem  When I did above  It was Cleared..