HiddenField::OnValueChanged Method (EventArgs^)
.NET Framework (current version)
Raises the ValueChanged event.
Assembly: System.Web (in System.Web.dll)
The ValueChanged event is raised when the value of the HiddenField control changes between posts to the server. This allows you to provide an event-handling method that performs a custom routine whenever this event occurs.
Raising an event invokes the event handler through a delegate. For more information, see NIB: Raising an Event.
The OnValueChanged 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.
Notes to Inheritors:
When overriding the OnValueChanged method in a derived class, be sure to call the base class’s OnValueChanged method so that registered delegates receive the event.
.NET Framework
Available since 2.0
Available since 2.0
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