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ObjectDataSource.Selecting Event

Occurs before a Select operation.

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

public event ObjectDataSourceSelectingEventHandler Selecting
/** @event */
public void add_Selecting (ObjectDataSourceSelectingEventHandler value)

/** @event */
public void remove_Selecting (ObjectDataSourceSelectingEventHandler value)

In JScript, you can handle the events defined by a class, but you cannot define your own.
Not applicable.

Handle the Selecting event to perform additional initialization that is specific to your application, to validate the values of parameters, or to change the parameter values before the ObjectDataSource control performs the data retrieval operation. The parameters are available as an IDictionary collection that is accessed by the InputParameters property, which is exposed by the ObjectDataSourceMethodEventArgs object.

NoteNote:

If you are not familiar with the Data Access features in ASP.NET 2.0, you should read some of these topics before continuing:

This event can be fired twice for a single call to the Select method, if the SelectCountMethod property is set. The ExecutingSelectCount property of the ObjectDataSourceSelectingEventArgs object is used to determine if select was called to retrieve data or retrieve the count.

For more information about handling events, see Consuming Events.

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
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