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 null.

ArgumentNullException

If validationError is null.

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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