The System.Web.UI.WebControls.GridView control raises the GridView.SelectedIndexChanging event when a Select button (a button with its CommandName property set to "Select") is clicked, but before the System.Web.UI.WebControls.GridView control handles the select operation. This allows you to provide an event-handling method that performs a custom routine, such as canceling the selection operation, whenever this event occurs.

A System.Web.UI.WebControls.GridViewSelectEventArgs object is passed to the event-handling method, which allows you to determine the index of the row selected by the user and to indicate that the selection operation should be canceled. To cancel the selection operation, set the System.ComponentModel.CancelEventArgs.Cancel property of the System.Web.UI.WebControls.GridViewSelectEventArgs object to true.

For more information about handling events, see Consuming Events.

For a list of initial property values for an instance of System.Web.UI.WebControls.GridViewSelectEventArgs, see the GridViewSelectEventArgs.#ctor(int) constructor.

Namespace: System.Web.UI.WebControls
Assembly: System.Web (in System.Web.dll)
Assembly Versions: 2.0.0.0
Since: .NET 2.0