MultiBindingExpression.HasError Property
Definition
Important
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Returns a value that indicates whether any of the inner Binding objects or the MultiBinding itself has a failing validation rule.
public:
virtual property bool HasError { bool get(); };public override bool HasError { get; }member this.HasError : boolPublic Overrides ReadOnly Property HasError As BooleanProperty Value
true if at least one of the inner Binding objects or the MultiBinding itself has a failing validation rule; otherwise, false.
Remarks
You can set validation rules on both the MultiBinding object and the individual Binding objects in the MultiBinding object. The binding engine evaluates the ValidationRules on the MultiBinding object when a value moves from the binding target property to the IMultiValueConverter object (multi-value converter). After that, when a value moves from the converter to the binding source property of an individual binding, the binding engine evaluates the ValidationRules on that Binding object.
