ArrayStore

If you want to extend the functionality of a JavaScript array, place it into an ArrayStore. It provides an interface for loading and editing data, and allows you to handle data-related events.

JavaScript
var fruits = [
    { fruit: 'Apples', count: 10 },
    { fruit: 'Oranges', count: 12 },
    { fruit: 'Lemons', count: 15 },
    { fruit: 'Pears', count: 20 },
    { fruit: 'Pineapples', count: 3 }
];

$(function() {
    $("#chartContainer").dxChart({
        dataSource: new DevExpress.data.DataSource({
            store: {
                type: 'array',
                data: fruits,
                onLoaded: function() {
                    // Event handling commands go here
                }
            },
            paginate: false
        }),
        series: {
            // See details in the "Bind Series to Data" topic
            argumentField: 'fruit',
            valueField: 'count'
        }
    });
});

As you may notice, in the previous code, the ArrayStore is not declared explicilty. Instead, it is wrapped in the DataSource instance. That is because the Chart requires pagination to be off in order to prevent data from partitioning. Other than that, the DataSource provides wide data-processing capabilities. For example, it can map objects from the array that underlies the ArrayStore, as shown in the following code.

JavaScript
var fruits = [
    { apples: 10 },
    { oranges: 12 },
    { lemons: 15 },
    { pears: 20 },
    { pineapples: 3 }
];

$(function() {
    $("#chartContainer").dxChart({
        dataSource: new DevExpress.data.DataSource({
            store: fruits,
            map: function(item) {
                var fruitName = Object.keys(item)[0];
                return {
                    fruit: fruitName.charAt(0).toUpperCase() + fruitName.slice(1),
                    count: item[fruitName]
                }
            },
            paginate: false
        }),
        series: {
            // See details in the "Bind Series to Data" topic
            argumentField: 'fruit',
            valueField: 'count'
        }
    });
});
NOTE
Even if you have passed a JavaScript array to the dataSource option, the Chart automatically places it into an ArrayStore wrapped into the DataSource that you can get with the getDataSource() method.
See Also