User Interaction

A user can interact with the legend by hovering the pointer over legend items. This causes the onHoverChanged event handler to execute. Refer to the Funnel Item Hover Events topic for details.

In addition, a user can click legend items. The widget does not react to this by default, but you can instruct it to by handling the legendClick event. If the handling function is not going to be changed at runtime, assign it to the onLegendClick option when you configure the widget. Otherwise, or if you need several handlers for the legendClick event, subscribe to it using the on(eventName, eventHandler) method. This approach is more typical of jQuery.

jQuery
JavaScript
$(function() {
    $("#funnelContainer").dxFunnel({
        // ...
        onLegendClick: function (e) {
            var item = e.item;
            // Event handling commands go here
        }
    });

    // ===== or =====
    var legendClickEventHandler1 = function (e) {
        var item = e.item;
        // First handler of the "legendClick" event
    };

    var legendClickEventHandler2 = function (e) {
        var item = e.item;
        // Second handler of the "legendClick" event
    };

    $("#funnelContainer").dxFunnel("instance")
        .on("legendClick", legendClickEventHandler1)
        .on("legendClick", legendClickEventHandler2);
});
Angular
HTML
TypeScript
<dx-funnel ...
    (onLegendClick)="onLegendClick($event)">
</dx-funnel>
import { DxFunnelModule } from 'devextreme-angular';
// ...
export class AppComponent {
    onLegendClick (e) {
        var item = e.item;
        // Event handling commands go here
    }
}
@NgModule({
    imports: [
        // ...
        DxFunnelModule
    ],
    // ...
})
See Also