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Validation.MarkInvalid Method (BindingExpressionBase, ValidationError)
.NET Framework (current version)
Marks the specified BindingExpression object as invalid with the specified ValidationError object.
Assembly: PresentationFramework (in PresentationFramework.dll)
Public Shared Sub MarkInvalid ( bindingExpression As BindingExpressionBase, validationError As 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.
| Exception | Condition |
|---|---|
| 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
Available since 3.0
Available since 3.0
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