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AppBar.onbeforeopen event

Applies to Windows and Windows Phone

Occurs immediately before a closed AppBar is displayed.

Learn about events with Quickstart: adding HTML controls and handling events.

Syntax


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

appBar.onbeforeopen = handler;


Event information

SynchronousNo
BubblesYes
CancelableYes

 

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

AppBar
AppBarCommand
AppBarIcon
BackButton
NavBar
Your first app - Part 3: PageControl objects and navigation
Navigating between pages (HTML)
Adding app bars
Adding nav bars
HTML AppBar control sample
HTML NavBar control sample
Navigation and navigation history sample
Designers
Command patterns
Navigation patterns
Guidelines for app bars
Bottom app bar
Top app bar

 

 

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