using System;  

using System.Collections.Generic;  

using System.Linq;  

using System.Web;  

using System.Web.UI;  

using System.Web.UI.WebControls;  

using System.Configuration;  

using System.Data.SqlClient;  

namespace 用戶激活  

{  

    public partial class WebForm3 : System.Web.UI.Page  

    {  

        protected void Page_Load(object sender, EventArgs e)  

        {  

        }  

        protected void Button1_Click(object sender, EventArgs e)  

        {  

            string connStr=ConfigurationManager.ConnectionStrings["ConnStr"].ConnectionString;  

            using(SqlConnection conn=new SqlConnection(connStr))  

            {  

                conn.Open();  

                using (SqlTransaction tran = conn.BeginTransaction()) //開始數(shù)據(jù)庫事務(wù)。即創(chuàng)建一個事務(wù)對象tran  

                {  

                    using (SqlCommand cmd =new SqlCommand())  

                    {  

                        cmd.Connection = conn;  

                        cmd.Transaction = tran; //獲取或設(shè)置將要其執(zhí)行的事務(wù)  

                        try  

                        {  

                            //在try{}塊里執(zhí)行sqlconnection命令  

                            cmd.CommandText = "update bb set Moneys=Moneys-" + Money.Text + " where ID=" + ToID.Text;  

                            cmd.ExecuteNonQuery();  

                            cmd.CommandText = "update bb set Moneys=Moneys+" + Money.Text + " where ID=" + FromID.Text;  

                            cmd.ExecuteNonQuery();  

                            tran.Commit(); //如果兩條sql命令都執(zhí)行成功，則執(zhí)行commit這個方法來執(zhí)行這些操作。  

                            Msg.Text = "轉(zhuǎn)賬成功";  

                        }  

                        catch  

                        {  

                            Msg.Text = "轉(zhuǎn)賬失敗";  

                            tran.Rollback();//如果執(zhí)行不成功，發(fā)送異常，則執(zhí)行rollback方法，回滾到事務(wù)操作開始之前。  

                        }  

                    }  

                }  

            }  

        }  

    }  

}

WebForm3.aspx頁面

復(fù)制代碼代碼如下:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm3.aspx.cs" Inherits="用戶激活.WebForm3" %>  

<html xmlns="http://www.w3.org/1999/xhtml">  

<head id="Head1" runat="server">  

    <title></title>  

</head>  

<body>  

    <form id="form1" runat="server">  

    轉(zhuǎn)賬賬戶：<asp:TextBox ID="ToID" runat="server"></asp:TextBox></br>  

    接收賬戶：<asp:TextBox ID="FromID" runat="server"></asp:TextBox></br>  

    轉(zhuǎn)賬金額：<asp:TextBox ID="Money" runat="server"></asp:TextBox></br>  

    轉(zhuǎn)賬是否成功：<asp:Label ID="Msg" runat="server" Text=""></asp:Label></br>  

    <asp:Button ID="Button1" runat="server" Text="提交轉(zhuǎn)賬" onclick="Button1_Click" />  

    </form>  

</body>  

</html>

運行結(jié)果如下圖所示：