UpdateSourceTrigger Enumeration

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Defines constants that indicate when a binding source is updated by its binding target in two-way binding.

Namespace: System.Windows.Data
Assembly: System.Windows (in System.Windows.dll)

Syntax

'Declaration
Public Enumeration UpdateSourceTrigger

public enum UpdateSourceTrigger

<object property="enumMemberName"/>

	Member name	Description
	Default	The binding source is updated automatically when the binding target value changes.
	PropertyChanged	The binding source is updated whenever the binding target value changes. If the binding target is a TextBox, it does not have to lose focus for the changes to be detected.
	Explicit	The binding source is updated only when you call the BindingExpression.UpdateSource method.

This enumeration is used by the Binding.UpdateSourceTrigger property.

Supported in: 5, 4, 3

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.