SplitView.onbeforeopen event

Raised just before opening the pane. Call preventDefault on this event to stop the pane from opening.

Syntax

function handler(eventInfo) { /* Your code */ }
 
// addEventListener syntax
splitView.addEventListener("beforeopen", handler);
splitView.removeEventListener("beforeopen", handler);
 
- or -

splitView.onbeforeopen = handler;

Event information

Event handler parameters

• eventInfo
  Type: Event**

  An object that contains information about the event.

Remarks

Replaces the onbeforeshow event.

Requirements

See also

SplitView