ado.net实现一个通知公告功能

一、建立相应的数据库，此处就不多说了，相信大家都非常了解

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" 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二、开始建立连接，建立连接首先需要有一个连接字符串，用来存储连接相关的信息，比如你连的是哪里的数据库呀，什么数据库呀，数据库名字，以及数据库用户名，密码之类的呀等等！这个链接字符串呢，一般都是直接放在配置文件（Web.config）中的，如下

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alt="" />

然后就需要在程序中读取那个链接字符串并创建链接了：

aaarticlea/png;base64,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" alt="" />

三、链接建立后就是打开那个链接，然后执行数据库的一些操作，然后在关闭链接，具体业务操作也不同，这里把实现一个通知公告功能的数据库操作代码粘贴一下，仅供参考：

 /*
  * 创建人：
  * 创建时间：2015-07-01
  * 说明：数据库的助手类
  * */
 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Data;
 using System.Data.SqlClient;
 using System.Configuration;

 namespace DAL
 {  

     public class SQLHelp
     {
         private SqlConnection conn = null;
         private SqlCommand cmd = null;
         private SqlDataReader sdr = null;
         public SQLHelp()
         {
             string connStr = ConfigurationManager.ConnectionStrings["connStr"].ConnectionString;
             conn = new SqlConnection(connStr);

         }
         //SqlConnection conn = new SqlConnection(connStr);

         /// <summary>
         /// 该方法实现对数据库的增删改。
         /// </summary>
         /// <param name="sql">对数据库的增删改sql语句</param>
         /// <returns></returns>
         public int ExecuteNonQuery(string sql)
         {
             conn.Open();
             cmd = new SqlCommand(sql,conn);
             int res = cmd.ExecuteNonQuery();
             conn.Close();
             return res;
         }
         /// <summary>
         /// 执行查询的方法
         /// </summary>
         /// <param name="sql">执行查询的sql语句</param>
         /// <returns></returns>
         public  DataTable ExecuteQuery(string sql)
         {
             DataTable dt = new DataTable();
             conn.Open();
             cmd = new SqlCommand(sql, conn);
             sdr = cmd.ExecuteReader();
             dt.Load(sdr);
             //sdr.Close;
             conn.Close();
             return dt;
         }
     }

 }

 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Data;
 using System.Data.SqlClient;
 namespace DAL
 {
     /// <summary>
     /// 公告管理数据库操作类
     /// </summary>
     public class NoticeDAO
     {
       /// <summary>
       /// 根据公告id删除公告信息
       /// </summary>
       /// <param name="NoticeId">公告id</param>
         public static void deleteNotice(string NoticeId)
         {
             SQLHelp SQLHelp = new SQLHelp();
             string sql = "delete from T_notice where NoticeId='" + NoticeId + "'";
             int i = SQLHelp.ExecuteNonQuery(sql);
             //return i;
         }
         /// <summary>
         /// 查询所有公告内容
         /// </summary>
         /// <returns>返回一个datatable类型的值</returns>
         public static DataTable selectAll()
         {
             SQLHelp SQLHelp = new SQLHelp();
             string sql = "select * from T_notice";
             DataTable dt = SQLHelp.ExecuteQuery(sql);
             return dt;
         }
         /// <summary>
         /// 更新公告内容
         /// </summary>
         /// <param name="title">公告标题</param>
         /// <param name="content">公告内容</param>
         /// <param name="time">发布时间，默认为当前时间</param>
         /// <param name="keyword">公告id</param>
         public static void UpdateNotice(string title, string content, string time,string keyword)
         {
             string retitle = title.Replace("'", "''");//为了避免用户输入单引号的时候报错
             title = retitle;
             string recontent = content.Replace("'", "''");
             content = recontent;
             SQLHelp SQLHelp = new SQLHelp();
             string sql = "update T_notice set NoticeTitle='"
                 + title + "',NoticeContent='"
                 + content + "',NoticeTime='"
                 + time + "' where NoticeId='"
                 + keyword + "'";
             int i = SQLHelp.ExecuteNonQuery(sql);

         }

         /// <summary>
         /// 插入公告内容
         /// </summary>
         /// <param name="title">公告标题</param>
         /// <param name="content">公告内容</param>
         /// <returns></returns>
         public static int InsertNotice(string title, string content)
         {
             string retitle=title.Replace("'", "''");//为了避免用户输入单引号的时候报错
             title = retitle;
             string recontent = content.Replace("'", "''");
             content = recontent;
             string sqlstr = @"insert into T_notice(NoticeTitle,NoticeContent,UserId)values('"+title+"','"+content+"','1')";
             SQLHelp SQLHelp = new SQLHelp();
             int i = SQLHelp.ExecuteNonQuery(sqlstr);
             return i;
         }
     }
 }

四、页面的话，使用的是一个gridview来实现的，这里说一下从后台绑定数据：

aaarticlea/png;base64,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" alt="" />

五、分页功能的话本文暂时不做分享，谢谢