Getting Redirect issue when clicked on CR controls after session expiry

Dear Experts,
I have a issue in my ASP.NET and crystal reports and the scenario is as follows:
I have implemented some reports in my my ASP.NET page. If the page is left alone for 15 mins (assuming 15 mins is configured as session time out), and then click on any buttons in the crystal report control tool bar (like export, navigate and etc), I am getting the following error.
Response.Redirect from inside an asynchronous callback method
I get this error beacuse in my base class I check for validity of the session and do a redirect to home page using Response.Redirect() when the session in invalid. This code apparently fails as crystal report make a asynchronous call to the page when the toolbar is clicked.
I got some links from other sites suggesting to add some java scripts to the response stream and etc. It did not work for me.
I am sure some one would have faces this issues and got a fix for this. If so, please share with me
TIA,
Prem

Not sure. The only thing that comes to mind is to check for the session variable to see if its still alive in the Page_Init. You might be able to trap it early enough there.
Other than that, I doubt this can be resolved in these forums and I'd recommend creating a phone case here:
http://store.businessobjects.com/store/bobjamer/DisplayProductByTypePage&parentCategoryID=&categoryID=11522300
Ludek

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