ListView::OnItemEditing Method (ListViewEditEventArgs^)


Raises the ItemEditing event.

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

virtual void OnItemEditing(
	ListViewEditEventArgs^ e


Type: System.Web.UI.WebControls::ListViewEditEventArgs^

The event data.

Exception Condition

The ListView control is not bound to a data source control by using the DataSourceID property.

The ItemEditing event is raised when an item's Edit button is clicked, but before the ListView control enters edit mode. (An Edit button is a button control whose CommandName property is set to "Edit".) This enables you to perform a custom routine whenever this event occurs, such as canceling the edit operation.

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

The OnItemEditing method also enables 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 you override OnItemEditing in a derived class, call the base class's OnItemEditing method so that registered delegates receive the event.

.NET Framework
Available since 3.5
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