|ConfirmOnFormSubmit||True iff the confirm dialog should run for form submission (i.e., after validators are all satisfied)|
|ConfirmText||The text to show when you want to confirm the click. (Note: HTML entities can be used here (ex: "
" for new-line))|
|displayModalPopupID||ID of a ModalPopupBehavior to be used instead of the default window.confirm dialog|
|OnClientCancel||The client-side script that executes when the cancel button is clicked on the confirm dialog.|
|postBackScript||Script to run to initiate a postback|