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GridView::SelectedIndexChanging Event

Occurs when a row's Select button is clicked, but before the GridView control handles the select operation.

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

public:
 event GridViewSelectEventHandler^ SelectedIndexChanging {
	void add (GridViewSelectEventHandler^ value);
	void remove (GridViewSelectEventHandler^ value);
}
<asp:GridView OnSelectedIndexChanging="GridViewSelectEventHandler" />

The SelectedIndexChanging event is raised when a row's Select button is clicked, but before the GridView control handles the select operation. This enables you to provide an event-handling method that performs a custom routine, such as canceling the selection operation, whenever this event occurs.

NoteNote

This event is not raised when you programmatically set the SelectedIndex property.

A GridViewSelectEventArgs object is passed to the event-handling method, which enables 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 Cancel property of the GridViewSelectEventArgs object to true.

For more information about handling events, see Consuming Events.

The following example demonstrates how to use the SelectedIndexChanging event to cancel a select operation.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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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