System.Windows.Forms.ListView.ItemControl.InvalidateBoxSelectRect C# (CSharp) Méthode

			void InvalidateBoxSelectRect ()
			{
				if (BoxSelectRectangle.Size.IsEmpty)
					return;

				Rectangle edge = BoxSelectRectangle;
				edge.X -= 1;
				edge.Y -= 1;
				edge.Width += 2;
				edge.Height = 2;
				Invalidate (edge);
				edge.Y = BoxSelectRectangle.Bottom - 1;
				Invalidate (edge);
				edge.Y = BoxSelectRectangle.Y - 1;
				edge.Width = 2;
				edge.Height = BoxSelectRectangle.Height + 2;
				Invalidate (edge);
				edge.X = BoxSelectRectangle.Right - 1;
				Invalidate (edge);
			}