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Binding.NotifyOnValidationError Property

Gets or sets a value that indicates whether to raise the Error attached event on the bound object.

Namespace:  System.Windows.Data
Assembly:  PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
'Declaration
Public Property NotifyOnValidationError As Boolean
'Usage
Dim instance As Binding 
Dim value As Boolean 

value = instance.NotifyOnValidationError

instance.NotifyOnValidationError = value
<object NotifyOnValidationError="bool" .../>

Property Value

Type: System.Boolean
true if the Error attached event should be raised on the bound object when there is a validation error during source updates; otherwise, false. The default is false.

If the binding has ValidationRules associated with it, the binding engine checks each rule each time it transfers the target property value to the source property. If a rule invalidates a value, the binding engine creates a ValidationError object and adds it to the Validation.Errors collection of the bound object. When the Validation.Errors property is not empty, the Validation.HasError attached property of the object is set to true. If the NotifyOnValidationError property of the Binding is set to true, then the binding engine raises the Validation.Error attached event on the object.

For a detailed discussion of the validation process, see the Data Validation section in the Data Binding Overview.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0
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