js获取gridview模板列中textbox行列的值

浏览数：55 / 时间：2015年06月09日

下面一个例子：在gridview中第一列输入数值，第二列输入数值，点击第三列的时候进行计算求和，如果不符合标记为红色字体。

如图：

代码：

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
    <script type="text/javascript">
        function setClf(con) {
            var table = document.getElementById("GridView1");
            var tr = table.getElementsByTagName("tr");
            //获取鼠标点击的元素  
            var e = event.srcElement;
            //获取元素所在的行的行号（表头行号从0开始）。注意：parentElement只适用于IE浏览器，而parentNode则符合DOM标准。  
            //var rowIndex=e.parentElement.parentElement.rowIndex ;  
            var i = e.parentNode.parentNode.rowIndex; //获取GridView控件  分别获取选定行指定列的值
            var a, b,c;

            a = parseFloat(tr[i].getElementsByTagName("td")[0].getElementsByTagName("input")[0].value);
            b = parseFloat(tr[i].getElementsByTagName("td")[1].getElementsByTagName("input")[0].value);

            //上面为获取gridview中textbox的，如果为lable则如下写法
            //  b = parseFloat(tr[i].getElementsByTagName("td")[1].getElementsByTagName("span")[0].innerText);
           
            sum1 = a+b; //计算方法改变 
            c = parseFloat(tr[i].getElementsByTagName("td")[2].getElementsByTagName("input")[0].value);
            if (sum1 != c) {
                con.style.color = "Red";

            }
            else con.style.color = "black";

        } 
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="4"
            Width="100%" BackColor="White" BorderStyle="Solid" BorderWidth="1px" O>
            <Columns>
                <asp:TemplateField HeaderText="数据1">
                    <ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" />
                    <ItemTemplate>
                        <asp:TextBox ID="txt_bndy" runat="server" CssClass="tboxSearch_x" Width="50" Height="20"
                            Text=‘<%#  Eval("BNDY").ToString() %>‘ />
                    </ItemTemplate>
                    <HeaderStyle HorizontalAlign="Center" VerticalAlign="Middle" />
                    <ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" />
                </asp:TemplateField>
                <asp:TemplateField HeaderText="数据2">
                    <ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" />
                    <ItemTemplate>
                        <asp:TextBox ID="txt_bndj" runat="server" CssClass="tboxSearch_x" Width="50" Height="20"
                            Text=‘<%# Eval("BNDJ").ToString()%>‘ />
                    </ItemTemplate>
                    <HeaderStyle HorizontalAlign="Center" VerticalAlign="Middle" />
                    <ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" />
                </asp:TemplateField>
                <asp:TemplateField HeaderText="求和">
                    <ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" />
                    <ItemTemplate>
                        <asp:TextBox ID="txt_bnlj" runat="server" CssClass="tboxSearch_x" Width="50" Height="20"
                            Text=‘<%# Eval("BNLJ").ToString()%>‘ onBlur="setClf(this)" />
                    </ItemTemplate>
                    <HeaderStyle HorizontalAlign="Center" VerticalAlign="Middle" />
                    <ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" />
                </asp:TemplateField>
            </Columns>
            <FooterStyle BackColor="#CCCC99" />
            <PagerStyle BackColor="#F7F7DE" ForeColor="Black" HorizontalAlign="Right" />
            <SelectedRowStyle BackColor="#CE5D5A" Font-Bold="True" ForeColor="White" />
            <AlternatingRowStyle BackColor="White" />
        </asp:GridView>
    </div>
    </form>
</body>
</html>

后台：

 protected void Page_Load(object sender, EventArgs e)
    {
        DataTable newdtb = new DataTable();
        newdtb.Columns.Add("BNDJ");
        newdtb.Columns.Add("BNDY");
        newdtb.Columns.Add("BNLJ");
      

        for (int i = 1; i < 11; i++)
        {
            DataRow newRow = newdtb.NewRow();
            //newRow["BNDJ"] = "pro" + i.ToString();
            //newRow["BNDY"] = 12.3m;
            newdtb.Rows.Add(newRow);
        }
        GridView1.DataSource = newdtb;
        GridView1.DataBind();
    }