private void SetSortAdorner(Visual visual, ref Adorner adorner, bool isSorted, bool isDescendingSort, bool isSecondaryAdorner) { if (null != adorner) { AdornerLayer.GetAdornerLayer(visual)?.Remove(adorner); adorner = null; } if (isSorted) { adorner = new Common.SortAdorner((UIElement)visual, isDescendingSort ? ListSortDirection.Descending : ListSortDirection.Ascending, isSecondaryAdorner); var adornerLayer = AdornerLayer.GetAdornerLayer(visual); // adornerLayer is valid only after the visual was visible for the first time if (null != adornerLayer) { adornerLayer.Add(adorner); } } }
private void SetSortAdorner(Visual visual, ref Adorner adorner, bool isSorted, bool isDescendingSort, bool isSecondaryAdorner) { if (null != adorner) { AdornerLayer.GetAdornerLayer(visual).Remove(adorner); adorner = null; } if (isSorted) { adorner = new Common.SortAdorner((UIElement)visual, isDescendingSort ? ListSortDirection.Descending : ListSortDirection.Ascending, isSecondaryAdorner); var adornerLayer = AdornerLayer.GetAdornerLayer(visual); // adornerLayer is valid only after the visual was visible for the first time if (null != adornerLayer) adornerLayer.Add(adorner); } }