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ValueChanged Event
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HiddenField::ValueChanged Event

Occurs when the value of the HiddenField control changes between posts to the server.

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

public:
 event EventHandler^ ValueChanged {
	void add (EventHandler^ value);
	void remove (EventHandler^ value);
}

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.

For more information about handling events, see Consuming Events.

The following example demonstrates how to use the ValueChanged event to display the value of the HiddenField control.

Security noteSecurity Note

This example has a text box that accepts user input, which is a potential security threat. By default, ASP.NET Web pages validate that user input does not include script or HTML elements. For more information, see Script Exploits Overview.

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

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0
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