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GridView.OnRowCancelingEdit Method

Raises the RowCancelingEdit event.

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

'Declaration
Protected Overridable Sub OnRowCancelingEdit ( _
	e As GridViewCancelEditEventArgs _
)

ExceptionCondition
HttpException

There is no handler for the RowCancelingEdit event.

The RowCancelingEdit event is raised when the Cancel button of a row in edit mode is clicked, but before the row exits edit mode. This enables you to provide an event-handling method that performs a custom routine, such as stopping the cancel operation if it would put the row in an undesired state, whenever this event occurs.

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

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

.NET Framework

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