| Name | Description |
| 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 |