After you add a data property to a mashup, you must bind an event in order to execute that service at run time. The following image shows bindings for a service that is executed when the mashup loads

The returned data from the service is then used to display data in a Bar Chart and an Advanced Grid widget.

You can bind multiple events from widgets, functions, or other services to another in the mashup. When any bound event is triggered, the widget is executed. For example, you can use the Loaded event to trigger a service that returns data for a Chart widget when the mashup is loaded. To execute the service again without reloading the page, add a Button to the mashup and bind the Clicked event of a Button widget to the service.