HtmlInputRadioButton.OnServerChange Method
Assembly: System.Web (in system.web.dll)
The ServerChange event is raised when the Checked property of the HtmlInputRadioButton control changes values between posts to the server. This allows you to create a custom event handler that performs a specific set of instructions (such as data validation) when the event is raised.
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| The control must have view state enabled for the ServerChange event to work correctly. To enable view state for all controls on the Web Forms page, set the Page.EnableViewState property to true. You can also enable view state for an individual control by setting the Control.EnableViewState property to true. |
Raising an event invokes the event handler through a delegate. For more information, see Raising an Event.
The OnServerChange 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 OnServerChange in a derived class, be sure to call the base class's OnServerChange method so that registered delegates receive the event.
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