System.Windows.Forms.ComboBox.IsInputKey C# (CSharp) Method

		protected override bool IsInputKey (Keys keyData)
		{
			switch (keyData & ~Keys.Modifiers) {
			case Keys.Up:
			case Keys.Down:
			case Keys.Left:
			case Keys.Right:
			case Keys.PageUp:
			case Keys.PageDown:
			case Keys.Home:
			case Keys.End:
				return true;
			
			default:
				return false;
			}
		}