[原]DataGridView 回车不换行代码 AND 编辑时的字符控制

// 让 dataGridView1 在遇到回车时不响应
protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
{
    if (dataGridView1.Focused || dataGridView1.IsCurrentCellInEditMode)
    {
        if (keyData == Keys.Enter)
        {
            if (dataGridView1.CurrentCellAddress.X == dataGridView1.ColumnCount - )
                // 让焦点转到下一行或者别的控件
                button1.Focus();
            else
                SendKeys.Send("{Right}");
            return true;
        }
    }
    return base.ProcessCmdKey(ref msg, keyData);
}

// 控制输入到 DataGridView 编辑单元格的字符
private void dataGridView1_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
{
    DataGridViewTextBoxEditingControl c = e.Control as DataGridViewTextBoxEditingControl;
    c.KeyPress += c_KeyPress;
}

void c_KeyPress(object sender, KeyPressEventArgs e)
{
    if (e.KeyChar >= 'a' && e.KeyChar <= 'z')
    {
        e.KeyChar = (char)(e.KeyChar - );
    }
}