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ValidateDataSource Method

DataBoundControl.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)

abstract ValidateDataSource : 
        dataSource:Object -> unit  
override ValidateDataSource : 
        dataSource:Object -> unit

Parameters

dataSource
Type: System.Object

An object set to the DataSource property.

ExceptionCondition
InvalidOperationException

The object passed by the dataSource parameter is not a null reference (Nothing in Visual Basic) or a recognized type.

The ValidateDataSource method is only called in the BaseDataBoundControl class's mutator (set accessor) for the DataSource property. The DataBoundControl class checks the type of the object that is set for the DataSource property to ensure that it is an instance of the IDataSource, IListSource, or IEnumerable interface.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0
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