set => this.SetValue(SelectedItemsProperty, value);
SetValue(SelectedItemsProperty, value);
static MyVectorLayer() { MapItem.IsHitTestVisibleProperty.OverrideMetadata(typeof(ShapeTitle), new PropertyMetadata(false)); SelectedItemProperty.OverrideMetadata(typeof(MyVectorLayer), new PropertyMetadata(SelectedItemPropertyChangedCallback)); SelectedItemsProperty.OverrideMetadata(typeof(MyVectorLayer), new PropertyMetadata(SelectedItemsPropertyChangedCallback)); }