Provides design-time support in a visual designer for a class that is derived from the System.Web.UI.HierarchicalDataSourceControl class.
See Also: IHierarchicalDataSourceDesigner Members
Typically, when creating a new data source class for hierarchical data and an accompanying designer, you would inherit the System.Web.UI.Design.HierarchicalDataSourceDesigner class rather than implement the System.Web.UI.Design.IHierarchicalDataSourceDesigner interface.