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HierarchicalDataBoundControl.ValidateDataSource Method

Verifies that the object a data-bound control binds to is one it can work with.

Namespace:  System.Web.UI.WebControls
Assembly:  System.Web (in System.Web.dll)

protected override void ValidateDataSource(
	Object dataSource
)

Parameters

dataSource
Type: System.Object
An object set to the DataSource property.

ExceptionCondition
InvalidOperationException

dataSource is not null 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.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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