protected override void OnAttached()
{
var textProperty = AssociatedObject.GetDependencyProperties(true).FirstOrDefault(dp => dp.Name == nameof(AssociatedObject.Text));
if (textProperty == null)
{
throw new ArgumentException($"Unable to find public property '{nameof(AssociatedObject.Text)}' on object of type '{AssociatedObject.GetType().FullName}'.");
}
propertyWatcher.Attach(AssociatedObject);
propertyWatcher.RegisterValueChangedHandler(textProperty, OnTextChanged);
var adornerLayer = AdornerLayer.GetAdornerLayer(AssociatedObject);
if (adornerLayer != null)
{
adorner = new HighlightBorderAdorner(AssociatedObject)
{
BackgroundBrush = null,
BorderBrush = BorderBrush,
BorderCornerRadius = BorderCornerRadius,
BorderThickness = BorderThickness,
State = HighlightAdornerState.Hidden,
};
adornerLayer.Add(adorner);
}
}
private static void ActivateWindowAdorners([NotNull] Window window)
{
var elements = WindowToElementsLookup[window];
foreach (var element in elements.Where(e => e.IsVisible))
{
var behaviors = (BehaviorCollection)element.GetValue(BehaviorsProperty);
if (behaviors != null)
{
foreach (var behavior in behaviors.OfType <IDragDropBehavior>())
{
if (!behavior.CanDrop || (behavior.DisplayDropAdorner & dataType) == 0)
{
continue;
}
var adornerLayer = AdornerLayer.GetAdornerLayer(element);
if (adornerLayer == null)
{
continue;
}
adornerLayer.IsHitTestVisible = false;
var adorner = new HighlightBorderAdorner(element)
{
State = HighlightAdornerState.Visible
};
adornerLayer.Add(adorner);
DropAdorners[element] = Tuple.Create(adornerLayer, adorner);
}
}
}
}
private void OnAssociatedObjectLoaded(object sender, RoutedEventArgs e)
{
var textBoxes = AssociatedObject.FindVisualChildrenOfType <TextBoxBase>();
textBoxes.ForEach(x =>
{
x.Validating += OnValidating;
x.TextToSourceValueConversionFailed += OnTextToSourceValueConversionFailed;
});
var adornerLayer = AdornerLayer.GetAdornerLayer(AssociatedObject);
if (adornerLayer != null)
{
textBoxAndAdorners = textBoxes.Select(textBox =>
{
var adorner = new HighlightBorderAdorner(textBox)
{
BackgroundBrush = null,
BorderBrush = BorderBrush,
BorderCornerRadius = BorderCornerRadius,
BorderThickness = BorderThickness,
State = HighlightAdornerState.Hidden,
};
adornerLayer.Add(adorner);
return(new TextBoxAndAdorner(textBox, adorner));
}).ToArray();
}
}
protected override void OnAttached()
{
var adornerLayer = AdornerLayer.GetAdornerLayer(AssociatedObject);
if (adornerLayer != null)
{
adorner = new HighlightBorderAdorner(AssociatedObject)
{
BackgroundBrush = null,
BorderBrush = BorderBrush,
BorderCornerRadius = BorderCornerRadius,
BorderThickness = BorderThickness,
State = HighlightAdornerState.Hidden,
};
adornerLayer.Add(adorner);
}
AssociatedObject.Validating += OnValidating;
AssociatedObject.TextToSourceValueConversionFailed += OnTextToSourceValueConversionFailed;
base.OnAttached();
}
public TextBoxAndAdorner(TextBoxBase textBox, HighlightBorderAdorner adorner)
{
TextBox = textBox;
Adorner = adorner;
}
