private void RemoveVideoFromInitParent(VideoPanelItem vpi) { _parent = vpi.Parent as Panel; _lastIndex = _parent.Children.IndexOf(vpi); _parent.Children.Remove(vpi); _vpi = vpi; _vpi.SetValue(DragDropTool.AllowDragProperty, false); _parent.Visibility = Visibility.Collapsed; }
//设置视频窗口的可拖拽属性。 private void SetDragDropParam(VideoPanelItem vpi) { vpi.SetValue(DragDropTool.AllowDropProperty, true); vpi.SetValue(DragDropTool.DropHandlerProperty, new VideoPanelDropHandler()); vpi.SetValue(DragDropTool.DragHandlerProperty, new VideoPanelDragHandler()); //允许拖动 Binding binding = CreateBinding(vpi.DataContext, BindingMode.OneWay, "ControlViewModel.IsVisible"); vpi.SetBinding(DragDropTool.AllowDragProperty, binding); //设置拖动数据 binding = CreateBinding(vpi.DataContext, BindingMode.OneWay, "ControlViewModel.VideoId"); vpi.SetBinding(DragDropData.DataProperty, binding); //设置可视化 vpi.SetValue(DragDropVisual.ShadowVisibleProperty, true); vpi.SetValue(DragDropVisual.ShadowColorProperty, Color.FromRgb(0, 255, 0)); vpi.SetValue(DragDropVisual.BorderThicknessProperty, new Thickness(2)); }