System.Windows.Data Error: 17 : Cannot get ‘Item[]’ value (type ‘ValidationError’) from ‘(Validation.Errors)’ (type ‘ReadOnlyObservableCollection`1′). BindingExpression:Path=AdornedElement.(0)[0].ErrorContent; DataItem=’AdornedElementPlaceholder’ (Name=’customAdorner’); target element is ‘TextBlock'(Name=”); target property is ‘Text’ (type ‘String’) ArgumentOutOfRangeException:’System.ArgumentOutOfRangeException: The specified parameter is out of the range of valid values.
Correct binding method:
Path=(Validation.Errors)/ErrorContentRead More:
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