HierarchicalDataBoundControl::ValidateDataSource Method
Verifies that the object a data-bound control binds to is one it can work with.
Assembly: System.Web (in System.Web.dll)
Parameters
- dataSource
- Type: System::Object
An object set to the DataSource property.
| Exception | Condition |
|---|---|
| InvalidOperationException | dataSource is not nullptr and implements neither the IHierarchicalEnumerable nor the IHierarchicalDataSource interface. |
The ValidateDataSource method is called only in 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.
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.