Occurs when an Update button within a System.Web.UI.WebControls.FormView control is clicked, but after the update operation.
The System.Web.UI.WebControls.FormView control raises the FormView.ItemUpdated event when an Update button (a button with its CommandName property set to "Update") within the control is clicked, but after the System.Web.UI.WebControls.FormView control updates the record. This allows you to provide an event-handling method that performs a custom routine, such as checking the results of an update operation, whenever this event occurs.
A System.Web.UI.WebControls.FormViewUpdatedEventArgs object is passed to the event-handling method, which allows you to determine the number of records affected and any exceptions that might have occurred. To determine the number of records affected by the update operation, use the FormViewUpdatedEventArgs.AffectedRows property. Use the FormViewUpdatedEventArgs.Exception property to determine whether any exceptions occurred. You can also indicate whether the exception was handled in the event-handling method by setting the FormViewUpdatedEventArgs.ExceptionHandled property. If you need to access the key field values for the updated record, use the FormViewUpdatedEventArgs.Keys property. The original and updated non-key field values can be accessed using the FormViewUpdatedEventArgs.OldValues and FormViewUpdatedEventArgs.NewValues properties, respectively.
By default, the System.Web.UI.WebControls.FormView control returns to the mode specified by the FormView.DefaultMode property after an update operation. To keep the System.Web.UI.WebControls.FormView control in edit mode, set the FormViewUpdatedEventArgs.KeepInEditMode property to true.
For more information about handling events, see Consuming Events.