Occurs when an active form becomes inactive. This API is obsolete. For information about how to develop ASP.NET mobile applications, see the www.asp.net/mobile Web site.
Assembly: System.Web.Mobile (in System.Web.Mobile.dll)
A form becomes inactive under the following circumstances:
When the ActiveForm property of the page is programmatically set to another form.
When the user navigates to a form through a Link control whose target is a form.
If neither of these actions occurs, the active form will never receive a event. This event's position in the event chain makes it very important in resetting the child controls, data set, or global variables.
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.