protected virtual void OnModeChanging(
Exception Condition HttpException
This method is called when the
control is not bound to a data source control, the mode change was not canceled, and an event handler is not registered for the event. FormView
method is called by the OnModeChanging control to raise the FormView event. It is generally used by control developers when extending the ModeChanging class. FormView
Raising an event invokes the event handler through a delegate. For more information, see
. Raising an Event
method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class. OnModeChanging Notes to Inheritors
in a derived class, be sure to call the base class's OnModeChanging method so that registered delegates receive the event. OnModeChanging .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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