ContentDialog.onbeforeshow event

Occurs before the dialog is shown. When you call preventDefault on this event, the dialog does not show and the show promise is completed with a canceled promise.
Syntax
function handler(eventInfo) { /* Your code */ } // addEventListener syntax contentDialog.addEventListener("beforeshow", handler); contentDialog.removeEventListener("beforeshow", handler); - or - contentDialog.onbeforeshow = handler;
Event information
| Synchronous | No |
|---|---|
| Bubbles | Yes |
| Cancelable | Yes |
Event handler parameters
- eventInfo
-
Type: Event
An object that contains information about the event.
Requirements
|
Minimum WinJS version |
WinJS 4.0 |
|---|---|
|
Namespace |
WinJS.UI |
See also
Show: