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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
)

Parameters

bindingExpression
Type: System.Windows.Data::BindingExpressionBase

The BindingExpression object to mark as invalid.

validationError
Type: System.Windows.Controls::ValidationError

The ValidationError object to use.

ExceptionCondition
ArgumentNullException

If bindingExpression is nullptr.

ArgumentNullException

If validationError is nullptr.

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

.NET Framework

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

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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