ListView.ongroupheaderinvoked event

Articolo
01/26/2017

Raised when the user taps or clicks a group header.

Syntax

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

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

Event information

Synchronous	No
Bubbles	Yes
Cancelable	Yes

Event handler parameters

eventInfo
Type: CustomEvent**

An object that contains info about the event. The detail property of this object contains the following sub-properties:

Property	Meaning
detail.groupHeaderIndex	The index of the group header that raised the event.
detail.groupHeaderPromise	A Promise object that returns info about the group header.

Remarks

Note When migrating an app from Windows Library for JavaScript 1.0 to Windows Library for JavaScript 2.0, your app must listen to the groupHeaderInvoked event. This allows the header to capture both keyboard and mouse events. Apps built on Windows Library for JavaScript 1.0 that relied on navigation through touch and mouse must move their handler code into this event.

Requirements

Minimum WinJS version	WinJS 3.0
Namespace	WinJS.UI

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