ListView Filter

[Pushpender]

Is there any way to get the count of number of items matching the filter criteria in a ListView?

[Kiril Nikolov]

Hi Pushpender,

You can use the view() of the dataSource, that will return only the items, that are left after filtering, and you can get its length property. I have created an example, showing a possible implementation:

http://jsbin.com/jotarija/1/edit

Regards,
Kiril Nikolov
Telerik

 

 

[Pushpender]

Hey thanks for the quick reply. That does gives me a count of items in the ListView.
Can we call an event when the ListView is filtered based on the search criteria? In the example provided, it was on the button click. Whereas, I want to bind it to the ListView Filter Event.

[Pushpender]

I implemented it in "DataBind" event of ListView. Is this approach correct?

dataBound: function(e) {
            var contactDataSource = this.dataSource;
            if(contactDataSource.view().length == 0){
               navigator.notification.alert("No result found", function () {}, "", 'OK');
            }           
}

[Kiril Nikolov]

Hi Pushpender,

Using dataBound event is perfectly fine, so you can go ahead and use it as the event will be fired every time the ListView is filtered.

Regards,
Kiril Nikolov
Telerik