MarkInvalid Method
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Validation.MarkInvalid Method

Marks the specified BindingExpression object as invalid with the specified ValidationError object.

Namespace: System.Windows.Controls
Assembly: PresentationFramework (in presentationframework.dll)

public static void MarkInvalid (
	BindingExpressionBase bindingExpression,
	ValidationError validationError
)
public static void MarkInvalid (
	BindingExpressionBase bindingExpression, 
	ValidationError validationError
)
public static function MarkInvalid (
	bindingExpression : BindingExpressionBase, 
	validationError : ValidationError
)
You cannot use methods in XAML.

Parameters

bindingExpression

The BindingExpression object to mark as invalid.

validationError

The ValidationError object to use.

Exception typeCondition

ArgumentNullException

If bindingExpression is a null reference (Nothing in Visual Basic).

ArgumentNullException

If validationError is a null reference (Nothing in Visual Basic).

The BindingExpression object stays invalid until ClearInvalid is called or another transfer to the binding source validates successfully.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0

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