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FormView.OnItemUpdating Method

Raises the ItemUpdating event.

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

protected virtual void OnItemUpdating(
	FormViewUpdateEventArgs e
)

Parameters

e
Type: System.Web.UI.WebControls.FormViewUpdateEventArgs

A FormViewUpdateEventArgs that contains the event data.

ExceptionCondition
HttpException

This method is called when the FormView control is not bound to a data source control, the user did not cancel the update operation, and an event handler is not registered for the event.

The OnItemUpdating method is called by the FormView control to raise the ItemUpdating event. It is generally used by control developers when extending the FormView class.

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

The OnItemUpdating 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 OnItemUpdating in a derived class, be sure to call the base class's OnItemUpdating method so that registered delegates receive the event.

.NET Framework

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

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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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