[置顶] Gridview中textbox列，按回车键或者上下键自动下移

1.aspx代码，因为textbox的外面又一层table所以用到了很多children[]，希望有更好的办法，真实例子粘过去就能运行

 <script src="jquery-1.4.2.min.js" type="text/javascript"></script>

<script type="text/javascript">
        //window.onbeforeunload = function () { return "qwewqeqweqwe" };
        function keyPressed() {
            var element = null;
            element = event.srcElement;
            if (!element || element == null) element = event.target;
            if (element.type != "text") return;
            var tblGrid = document.getElementById("gdv");
            var TBID = element; //当前ID
            var CurCellID = TBID.parentElement.parentElement.parentElement.parentElement.parentElement;
            var CurCellIndex = CurCellID.cellIndex; //当前是第几列
            var CurRowIndex = CurCellID.parentElement.rowIndex; //当前是第行; 
            var rowcount = tblGrid.rows.length; //总行
            var CellCount = tblGrid.rows[CurRowIndex].cells.length; //当前行的总列数
            var TargateRow = -1; //目标行(默认值为-1)
            var TargateCell = -1; //目标列  (默认值为-1)
            var R, C;
            if (event.keyCode == 40 || event.keyCode == 13 || event.keyCode == 38) {
                if (tblGrid.rows[CurRowIndex].cells[CurCellIndex].children[0].children[0].children[0].children[0].children[0] != null) {
                    if (tblGrid.rows[CurRowIndex].cells[CurCellIndex].children[0].children[0].children[0].children[0].children[0].id == TBID.id) {

                        //向下光标****************************************************************************
                        if (event.keyCode == 40 || event.keyCode == 13)//Buttom
                        {
                            if (CurRowIndex < rowcount - 1) {
                                if (tblGrid.rows[CurRowIndex + 1].cells[CurCellIndex].children[0] != null) {
                                    if (tblGrid.rows[CurRowIndex + 1].cells[CurCellIndex].children[0].children[0].children[0].children[0].children[0].type == 'text') {
                                        //downvalue
                                        tblGrid.rows[CurRowIndex + 1].cells[CurCellIndex].children[0].children[0].children[0].children[0].children[0].select();
                                        return false;
                                    }
                                }
                            }
                            else {
                                //当在最后一行按向下光标键时,新增一行空白行
                            }
                        }

                        //向上光标(当前行必须大于第一行）******************************************************
                        if (event.keyCode == 38 && CurRowIndex > 1)//up
                        {
                            if (tblGrid.rows[CurRowIndex - 1].cells[CurCellIndex].children[0].children[0].children[0].children[0].children[0] != null) {
                                if (tblGrid.rows[CurRowIndex - 1].cells[CurCellIndex].children[0].children[0].children[0].children[0].children[0].type == 'text') {
                                    //upvalue
                                    tblGrid.rows[CurRowIndex - 1].cells[CurCellIndex].children[0].children[0].children[0].children[0].children[0].select();
                                    return false;
                                }
                            }
                        }
                        //END****************************************************************************

                    }
                }
            }
        }
               
    </script>

<form id="form1" runat="server">
    <asp:ScriptManager ID="ScriptManager1" runat="server">
    </asp:ScriptManager>
    <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
    <asp:UpdatePanel ID="UpdatePanel1" runat="server">
        <ContentTemplate>
            <div>
                <asp:GridView ID="gdv" runat="server" onkeydown='return keyPressed()' AllowPaging="True"
                    PageSize="50" AutoGenerateColumns="False" Width="100%" PagerStyle-HorizontalAlign="Center">
                    <PagerSettings Visible="False" />
                    <PagerStyle HorizontalAlign="Center" />
                    <RowStyle HorizontalAlign="Center" />
                    <Columns>
                        <asp:TemplateField HeaderText="序号">
                            <ItemTemplate>
                                <asp:Label ID="lbl" runat="server" Text="<%# Container.DataItemIndex+1%>"></asp:Label>
                            </ItemTemplate>
                        </asp:TemplateField>
                        <asp:BoundField DataField="Name" HeaderText="测试" />
                        <asp:TemplateField HeaderText="名称">
                            <ItemTemplate>
                                <table>
                                    <tr>
                                        <td>
                                            <asp:TextBox ID="BarCode" runat="server" Text='<%#Eval("HousesID") %>' Width="200px"
                                                MaxLength="10"></asp:TextBox>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td>
                                            <asp:Label ID="Label1" runat="server" Text='<%#Eval("HousesID") %>'></asp:Label>
                                        </td>
                                    </tr>
                                </table>
                            </ItemTemplate>
                        </asp:TemplateField>
                        <asp:TemplateField HeaderText="编辑">
                            <ItemTemplate>
                                <asp:LinkButton ID="LinkButton1" runat="server" OnClientClick="showDivObj(this,'gdv', 5)">编辑</asp:LinkButton>
                            </ItemTemplate>
                        </asp:TemplateField>
                    </Columns>
                </asp:GridView>
            </div>
        </ContentTemplate>
    </asp:UpdatePanel>
    </form>

2.cs代码

 List<SeeList> list = new List<SeeList>();
    protected void Page_Load(object sender, EventArgs e)
    {
        SeeList li = new SeeList();
        li.AutoID = 1;
        li.HousesID = 21;
        li.Name = "asd1";
        list.Add(li);
        SeeList li2 = new SeeList();
        li2.AutoID = 1;
        li2.HousesID = 22;
        li2.Name = "asd2";
        list.Add(li2);
        SeeList li3 = new SeeList();
        li3.AutoID = 1;
        li3.HousesID = 23;
        li3.Name = "asd3";
        list.Add(li3);
        SeeList li4 = new SeeList();
        li4.AutoID = 1;
        li4.HousesID = 24;
        li4.Name = "asd4";
        list.Add(li4);
        SeeList li5 = new SeeList();
        li5.AutoID = 1;
        li5.HousesID = 25;
        li5.Name = "asd5";
        list.Add(li5);
        gdv.DataSource = list;
        gdv.DataBind();
    }
    #region 实体
    public class SeeList
    {
        private int m_AutoID;

        public int AutoID
        {
            get { return m_AutoID; }
            set { m_AutoID = value; }
        }

        private int m_HousesID;

        public int HousesID
        {
            get { return m_HousesID; }
            set { m_HousesID = value; }
        }

        private string m_Name;

        public string Name
        {
            get { return m_Name; }
            set { m_Name = value; }
        }
    }
    #endregion