System.Windows.Forms.ContainerControl.ProcessDialogKey C# (CSharp) Method

		protected override bool ProcessDialogKey(Keys keyData) {
			Keys	key;
			bool	forward;

			key = keyData & Keys.KeyCode;
			forward = true;

			switch (key) {
				case Keys.Tab: {
					if ((keyData & (Keys.Alt | Keys.Control)) == Keys.None) {
						//if (ProcessTabKey ((Control.ModifierKeys & Keys.Shift) == 0)) {
						//	return true;
						//}
					}
					break;
				}

				case Keys.Left: {
					forward = false;
					goto case Keys.Down;
				}

				case Keys.Up: {
					forward = false;
					goto case Keys.Down;
				}

				case Keys.Right: {
					goto case Keys.Down;
				}
				case Keys.Down: {
					if (SelectNextControl(active_control, forward, false, false, true)) {
						return true;
					}
					break;
				}


			}
			return base.ProcessDialogKey(keyData);
		}