HtmlSelect.OnDataBinding Method

Raises the DataBinding event of an HtmlSelect control.

Namespace: System.Web.UI.HtmlControls
Assembly: System.Web (in system.web.dll)

protected override void OnDataBinding (
	EventArgs e
)
protected void OnDataBinding (
	EventArgs e
)
protected override function OnDataBinding (
	e : EventArgs
)
Not applicable.

Parameters

e

A System.EventArgs that contains the event data.

Exception typeCondition

HttpException

The DataSourceID property is not of type IDataSource.

- or -

The DataSourceID property is not of type IHierarchicalDataSource.

InvalidOperationException

Both a DataSource and a DataSourceID property are defined for the HtmlSelect control.

- or -

The requested data view cannot be found.

ArgumentOutOfRangeException

The SelectedIndex property was set to a value greater than the number of items in the HtmlSelect control or less than -1.

The DataBinding event is raised when data is bound to the HtmlSelect control. This method notifies the control to perform any data-binding logic that is associated with it. Specifically, the OnDataBinding method creates the Items collection from the data source specified in either the DataSource property or the DataSourceID property.

Raising an event invokes the event handler through a delegate. For more information, see Raising an Event.

The OnDataBinding method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding the OnDataBinding method in a derived class, be sure to call the base class's OnDataBinding method so that registered delegates receive the event.

Windows 98, Windows Server 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

Community Additions

ADD
Show: