大家知道，在WinForm开发的系统中，有Header-Detail的结构不少，比如订单、发货单、凭证等等，基本都是Header-Detail结构，而在C＃中要开发这样的程序还真有点麻烦，可能是新东西刚出来，要解决这样问题，还真有点烦！同时一般比较好的系统中，你不用Mouse，用键盘就可以操作整个系统。为此，本人专门花了点时间来研究这个问题的解决方案，以和大家共享！

1、首先是换行问题！

DataGridView中，你输入数据，按回车，不会跳到下一列去，而是跳到下一行，如果你想通过KeyPress,KeyDown,KeyUp事件达到目的，好像没什么反应。于是我想肯定有其他的方法可以解决。就到微软的网站上去查，果然有相关情况的介绍，但还是达不到我要的，于是改造一下，就OK了。

基本解决方法如下：

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gifusing System;

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gifusing System.Collections.Generic;

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gifusing System.Text;

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gifusing System.Windows.Forms;

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gifnamespace WindowsApplication1

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedBlock.gif...{

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif    public class CustomDataGridView : DataGridView

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif    ...{

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif        protected override bool ProcessDialogKey(Keys keyData)

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif        ...{

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif            Keys key = (keyData & Keys.KeyCode);

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif            if (key == Keys.Enter)

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif            ...{

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif                return this.ProcessRightKey(keyData);

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif            }

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif            return base.ProcessDialogKey(keyData);

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif        }

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif        public new bool ProcessRightKey(Keys keyData)

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif        ...{

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif            Keys key = (keyData & Keys.KeyCode);

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif            if (key == Keys.Enter)

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif            ...{

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif                //第一种情况：只有一行,且当光标移到最后一列时

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif                if ((base.CurrentCell.ColumnIndex == (base.ColumnCount - 1)) && (base.RowCount == 1))

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif                ...{

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif                    base.CurrentCell = base.Rows[base.RowCount - 1].Cells[0];

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif                    return true;

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif                }

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif                //第二种情况：有多行，且当光标移到最后一列时,移到下一行第一个单元

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif                if ((base.CurrentCell.ColumnIndex == (base.ColumnCount - 1)) && (base.CurrentCell.RowIndex < (base.RowCount - 1)))

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif                ...{

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif                    base.CurrentCell = base.Rows[base.CurrentCell.RowIndex + 1].Cells[0];

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif                    return true;

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif                }

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif                return base.ProcessRightKey(keyData);

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif            }

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif            return base.ProcessRightKey(keyData);

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif        }

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif        protected override bool ProcessDataGridViewKey(KeyEventArgs e)

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif        ...{

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif            if (e.KeyCode == Keys.Enter)

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif            ...{

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif                return this.ProcessRightKey(e.KeyData);

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif            }

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif            //if (e.KeyCode == Keys.F4)

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif            //{

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif            //    return this.ProcessRightKey(e.KeyData);

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif            //}

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif            return base.ProcessDataGridViewKey(e);

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif        }

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif    }

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockEnd.gif}

http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif

这样，你输入回车，不会再跳到下一行，而是跳到下一列，只有当你到最后一列时，才会换行。本人试过，基本没有什么Bug,可以拿来做现成的用，大家在写程序时就不需要再写代码了，这个就OK。

那是不是说所有问题都解决了？不是，因为我们在使用的过程中，可能会在DataGridView中使用其他的快捷键，比如微软的标准，按下F4，会弹出下拉列表(如：大家习惯的ComboBox控件就是很好的示例，将光标定位到ComboBox，按下F4，肯定会下拉的，除非自已写来替换掉)。解决这个问题的方法类似！