HierarchicalDataBoundControl.ValidateDataSource(Object) Method

Reference

Definition

Namespace:: System.Web.UI.WebControls

Assembly:: System.Web.dll

Important

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

protected:
 override void ValidateDataSource(System::Object ^ dataSource);

protected override void ValidateDataSource (object dataSource);

override this.ValidateDataSource : obj -> unit

Protected Overrides Sub ValidateDataSource (dataSource As Object)

Parameters

dataSource: Object

An object set to the DataSource property.

Exceptions

InvalidOperationException

dataSource is not null and implements neither the IHierarchicalEnumerable nor the IHierarchicalDataSource interface.

Remarks

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.

Applies to

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