键盘回车,光标左移而不是下移

 

重写方法 ProcessCmdKey 就可以了

 protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
        {
            if ((!(ActiveControl is Button)) && (keyData == Keys.Up || keyData == Keys.Down || keyData == Keys.Enter))
            {
                if (keyData == Keys.Enter)
                {
                    SendKeys.Send("{TAB}");
                    return true;
                }
                if (keyData == Keys.Down)
                {
                    SendKeys.Send("{TAB}");
                }
                else
                {
                    SendKeys.Send("+{TAB}");
                }
                return true;
            }
            else
                return base.ProcessCmdKey(ref msg, keyData);
        }