Our client wanted to make sure that all edit pages could not be closed without asking the user if they really want to leave the page or not when they click the X in the upper right of the page.  This works great until you run a test with a RADCalendar control on the edit page, then the confirmation pop-up comes up after selecting a date from the RADCalendar popup.  If you answer the question 'Leave the Page', then RADCalendar pop-up closes and so does the Edit page.  If you answer the question 'Stay on the Page', then the RADCalendar pop-up closes, the Edit page stays opened,but the date field doesn't fill-in with the user's date selection.

The only way I found around it was to enter text in the RADCalendar without selecting a date in a calendar pop-up.  It avoids the calendar pop-up and the close window confirmation.

Our client wanted to make sure that all edit pages could not be closed without asking the user if they really want to leave the page or not when they click the X in the upper right of the page.  This works great until you run a test with a RADCalendar control on the edit page, then the confirmation pop-up comes up after selecting a date from the RADCalendar popup.  If you answer the question 'Leave the Page', then RADCalendar pop-up closes and so does the Edit page.  If you answer the question 'Stay on the Page', then the RADCalendar pop-up closes, the Edit page stays opened,but the date field doesn't fill-in with the user's date selection.

The only way I found around it was to enter text in the RADCalendar without selecting a date in a calendar pop-up.  It avoids the calendar pop-up and the close window confirmation.