After a couple months of my web app just sitting in our test environment not being tested by our users (shame on them), They started testing today finally...yea!  However, they (and I) are now getting the error below when clicking on a row in the grid.  I know I didn't get this error before when I released it for testing.

"There is a problem with the event handler method: 'AfterRowActivate'. Please check the method name's spelling."

In fact, all the event handler methods are give this similar error.  I don't know where those methods are located.  What I have in my grid code is:

<ClientSideEvents BeforeRowDeletedHandler="BeforeRowDeletedHandler"
                           AfterRowActivateHandler="AfterRowActivate"
                           AfterCellUpdateHandler="AfterCellUpdate"
                           EditKeyDownHandler="KeyDownHandler"
                           KeyDownHandler="KeyDownHandler"
                           EditKeyUpHandler="KeyUpHandler"
                           KeyUpHandler="KeyUpHandler" />

Any ideas?

Thanks!