how to get total count of datasource in Devextreme

Question

I have a project in DevExtreme,mobile.

JavaScript:

var example = new DevExpress.data.DataSource({

    store: example.db.deneme,

    requireTotalCount: true

}).load().done(function (result) {

        alert(result.length);
});
// this

In this code, 'result.length' returns the correct answer.

How to get total count ('result.length') in 'this' place.

score 1 · Accepted Answer · answered Oct 13 '15 at 06:58

1

The load method of the dataSource works asynchronously. So, you can use the deferred object to implement your scenario:

var deferred = $.Deferred();

example.load().done(function (result, extra) {
    deferred.resolve(extra.totalCount);
});

$.when(deferred).done(function(count){
    alert(count);
});

http://jsfiddle.net/edgc42ga/

answered Oct 13 '15 at 06:58

Sergey

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Hi Sergey, That is the answer I was looking for. Thank you for your answer. When I use more than one DataSource, they look different in order. Why ? – Ersin Ulker Oct 13 '15 at 08:24
1

To resolve a few deferred objects call `$.when.apply(null, deferreds).done(function(/* your deferreds */){})`, http://jsfiddle.net/1oczhvrf/1/ – Sergey Oct 13 '15 at 09:36
Thanks for your answer – Ersin Ulker Oct 14 '15 at 06:46

how to get total count of datasource in Devextreme

1 Answers1