Web Viewer - How to use a parameter to filter an item using a filter element bound to a different data source

This example demonstrates how to filter items bound to different data sources using a hidden ProductIDs parameter that supports multi selection. This parameter is used as described in the Filtering help topic. We update its value using a client-side script as described in the T205300: How to specify dashboard parameter values on the client side in the Web Viewer example.
To get information about the actual filter expression handle the ASPxClientDashboardViewer.MasterFilterSet  and MasterFilterCleared  events.