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

			public void Scroll (int lines)
			{
				int max = vscroll.Maximum - page_size + 1;
				int val = vscroll.Value + lines;
				if (val > max)
					val = max;
				else if (val < vscroll.Minimum)
					val = vscroll.Minimum;

				vscroll.Value = val;
			}