System.Windows.Forms.TextBox.AutoCompleteListBox.EnsureVisible C# (CSharp) Method

			public void EnsureVisible (int index)
			{
				if (index < top_item) {
					vscroll.Value = index;
				} else {
					int max = vscroll.Maximum - page_size + 1;
					int rows = Height / item_height;
					if (index > top_item + rows - 1) {
						index = index - rows + 1;
						vscroll.Value = index > max ? max : index;
					}
				}
			}