Refresh list

[PaoloBaxParticipant]

Is it possible to refresh the list (so that items are rendered again, for example because one of them changed) without reassigning the source (which would cause the selected index to be lost)?

[Peter StoevKeymaster]

Hi PaoloBax,

– You can use the jqxListBox’s ‘refresh’ method and invoke it with parameter – true.
– Another option is to reassign the ‘source’ object and call the jqxListBox’s selectIndex method to select an item.

Best Regards,
Peter Stoev

jQWidgets Team
http://www.jqwidgets.com

[PaoloBaxParticipant]

Thank you.
I wasn’t aware of the refresh method (it is not listed in the API).
About reassigning the source and re-selecting an item, this has a drawback: the select event is fired. In my case this causes a loop in the code.
I think it would be useful to have separate events when the selection is caused by user interaction (click on the list) and when it is caused programmatically by setting the selectedIndex property.

[Peter StoevKeymaster]

Hi PaoloBax,

Actually, it is a correct behavior the ‘select’ event to be raised when an item is selected even with a method call. The ‘select’ event arguments can be used to determine the selection’s source – API, keyboard or mouse.

 $('#jqxListBox').bind('select', function (event) {
    var args = event.args;
    var selectionType = args.type;
 });

The args.type values could be: ‘none’ – selection is via a function call, ‘keyboard’ – selection is via a keyboard navigation, ‘mouse’ – selection is via mouse click.

Best Regards,
Peter Stoev

jQWidgets Team
http://www.jqwidgets.com

[PaoloBaxParticipant]

Thank you, the arguments are perfect for my needs.

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