onbeforeclose event

NavBar.onbeforeclose event

Applies to Windows only

[NavBar is no longer available for use as of Windows Library for JavaScript (WinJS) 4.2. Instead, use SplitViewCommand. ]

Occurs before the NavBar is closed.

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

Syntax


<div data-win-control="WinJS.UI.NavBar" data-win-options="{onbeforeclose : handler}" />


function handler(eventInfo) { /* Your code */ }
 
// addEventListener syntax
navBar.addEventListener("beforeclose", handler);
navBar.removeEventListener("beforeclose", handler);


Event information

SynchronousNo
BubblesYes
CancelableYes

 

Event handler parameters

eventInfo

Type: Event

An object that contains information about the event.

Remarks

This replaces the onbeforehide event, which has been removed.

Requirements

Minimum WinJS version

WinJS 4.0

Namespace

WinJS.UI

See also

NavBar
NavBarCommand
NavBarContainer
BackButton
AppBar
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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