Binding.NotifyOnValidationError Property

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Gets or sets a value that indicates whether the BindingValidationError event is raised on validation errors.

Namespace: System.Windows.Data
Assembly: System.Windows (in System.Windows.dll)
XMLNS for XAML: Not mapped to an xmlns.


Public Property NotifyOnValidationError As Boolean
public bool NotifyOnValidationError { get; set; }
<Binding NotifyOnValidationError="bool"/>

Property Value

Type: System..::.Boolean
true if the BindingValidationError event is raised; otherwise, false. The default is false.


Exception Condition

The Binding has already been attached to a target element, and cannot be modified.


NotifyOnValidationError controls whether or not the BindingValidationError event is raised. Windows Phone supports exception validation only. For more information, see ValidatesOnExceptions.

Version Information

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0


Windows Phone

See Also


Binding Class

System.Windows.Data Namespace

Other Resources

Data binding for Windows Phone 8