System.Windows.Forms.ListView.LayoutGroupHeader C# (CSharp) Method

		int LayoutGroupHeader (ListViewGroup group, int y_origin, int item_height, int y_spacing, int rows)
		{
			Rectangle client_area = ClientRectangle;
			int header_height = Font.Height + 15; // one line height + some padding

			group.HeaderBounds = new Rectangle (0, y_origin, client_area.Width - v_scroll.Width, header_height);
			group.items_area_location = new Point (0, y_origin + header_height);

			int items_area_height = ((item_height + y_spacing) * rows);
			return header_height + items_area_height + 10; // Add a small bottom margin
		}