改变GridView文本框内容，另一列自动更新。

 <asp:GridView
        AutoGenerateColumns="false"
        ID="GridView1" runat="server" Style="position: relative" OnRowDataBound="GridView1_RowDataBound">
            <Columns>
                <asp:TemplateField>
                   <ItemTemplate>
                       <asp:TextBox ID="price" runat="server" Style="position: relative"></asp:TextBox>
                   </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField>
                     <ItemTemplate>
                       <asp:TextBox ID="num" runat="server" Style="position: relative"></asp:TextBox>
                   </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField>
                     <ItemTemplate>
                       <asp:TextBox ID="amt" runat="server" Style="position: relative"></asp:TextBox>
                   </ItemTemplate>
                </asp:TemplateField>
            </Columns>
</asp:GridView>

using System;
using ;
using ;
using ;
using ;
using ;
using ;
using ;
using ;
using ;
using ;

public partial class SettleMent_Income_test10 :
{
    mybill = new ();
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!)
        {
                myBillQuery = new ();
                DataSet ds = new DataSet();
                (myBillQuery, ref ds);
                this. = ds;
                this.();
        }
    }
    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {

        if ( == )
        {
            TextBox tbprice=([0].FindControl("price") as TextBox);
            TextBox tbnum = ([1].FindControl("num") as TextBox);
            TextBox tbamt = ([2].FindControl("amt") as TextBox);
          
            if (tbprice != null && tbnum != null && tbamt != null)
            {
                if (!())
                {
                    = "0";
                }
                if (!())
                {
                    = "0";
                }
                = (() * ()).ToString();
                StringBuilder script = new StringBuilder();
                //输入数值之后总自动金额更新
                (" var amount=0;");
                (" vAmt=('" + + "');");
                (" vNum=('" + + "');");
                (" vPrice=('" + + "');");
                ("var amt=parseFloat()*parseFloat();");
                ("=amt;");
                //只允许输入带小数的数字.
                string scriptOnKeyPress=@"return   /^[1-9]/d{9}/.test()?(//./.test()?(//./d{2}/.test

()?(==0):(>=48&&<=57)):(==46)):

(>=48&&<=57)";
                ("onblur", ());
                ("onkeypress", scriptOnKeyPress);

                ("onblur", ());
                ("onkeypress", scriptOnKeyPress);
            }
        }
    }
}