A ReportDesignerClientSideEventsBuilder that can be used to further configure the Report Designer Client Side Events.
The CustomizeToolbox event enables you to customize the Web Report Designer's Toolbox. When implementing a handling function, use the objects passed as parameters. The first parameter passes the event sender that is the ClientReportDesigner object. The second one is an object with the following field exposed.
To register a custom control, use the registerControl method of the obtained ControlsFactory object. This method accepts the control name and the object that stores information about a custom toolbox item.