using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Configuration;

using System.Data.SqlClient;

using System.Data;

namespace Sample2

{

    class Program

    {

        private static string _connStr;

        static void Main(string[] args)

        {

            _connStr = "Data Source=localhost;User Id=sa;Password=xxx;Database=xxx;Pooling=true;Max Pool Size=600;Min Pool Size=0;";

            SqlDependency.Start(_connStr);//传入连接字符串,启动基于数据库的监听

            UpdateGrid();

            Console.Read();

        }

        private static void UpdateGrid()

        {

            using (SqlConnection connection = new SqlConnection(_connStr))

            {

                connection.Open();

                //依赖是基于某一张表的,而且查询语句只能是简单查询语句,不能带top或*,同时必须指定所有者,即类似[dbo].[]

                using (SqlCommand command = new SqlCommand("select D_Id,D_Name,D_Password,D_Else,D_Amount From [dbo].[TestTable]", connection))

                {

                    command.CommandType = CommandType.Text;

                    SqlDependency dependency = new SqlDependency(command);

                    dependency.OnChange += new OnChangeEventHandler(dependency_OnChange);

                    using (SqlDataReader sdr = command.ExecuteReader())

                    {

                        Console.WriteLine();

                        while (sdr.Read())

                        {

                            Console.WriteLine("{0}---{1}---{2}---{3}---{4}", sdr["D_Id"].ToString(),

                                sdr["D_Name"].ToString(), sdr["D_Password"].ToString(), sdr["D_Else"].ToString(), sdr["D_Amount"].ToString());

                        }

                        sdr.Close();

                    }

                }

            }

        }

        private static void dependency_OnChange(object sender, SqlNotificationEventArgs e)

        {

            UpdateGrid();

        }

    }

}

use master

ALTER DATABASE WINE_CLOUD set ENABLE_BROKER

/*

想启用Broker时，出现以下错误:

无法启用数据库 "db2" 中的 Service Broker，因为已存在启用的具有相同 ID 的 Service Broker。

解决办法:

use master

alter database db2 set NEW_BROKER

然后再运行

use master

ALTER DATABASE db2 set ENABLE_BROKER

*/

--验证是否能启用

go

Select DATABASEPROPERTYEX('WINE_CLOUD','IsBrokerEnabled')

--修改数据库使用者（至关重要）

exec sp_changedbowner @loginame = 'sa'