HierarchicalDataBoundControl.ValidateDataSource Method (Object)
Verifies that the object a data-bound control binds to is one it can work with.
Assembly: System.Web (in System.Web.dll)
The BaseDataBoundControl class's mutator (setter) for the DataSource property. The HierarchicalDataBoundControl class checks the type of the object that is set for the DataSource property to ensure that it is an instance of the IHierarchicalEnumerable or IHierarchicalDataSource interfaces.method is called only in the
Available since 2.0