JavaScript/jQuery Funnel - 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.
- var fruits = [
- { fruit: 'Apples', count: 10 },
- { fruit: 'Oranges', count: 12 },
- { fruit: 'Lemons', count: 15 },
- { fruit: 'Pears', count: 20 },
- { fruit: 'Pineapples', count: 3 }
- ];
- $(function () {
- $("#funnelContainer").dxFunnel({
- dataSource: new DevExpress.data.DataSource({
- store: {
- type: 'array',
- data: fruits,
- onLoaded: function () {
- // Event handling commands go here
- }
- },
- paginate: false
- }),
- 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 Funnel 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.
- var fruits = [
- { apples: 10 },
- { oranges: 12 },
- { lemons: 15 },
- { pears: 20 },
- { pineapples: 3 }
- ];
- $(function () {
- $("#funnelContainer").dxFunnel({
- 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
- }),
- argumentField: 'fruit',
- valueField: 'count'
- });
- });
See Also
If you have technical questions, please create a support ticket in the DevExpress Support Center.