winform 通讯录

实现联系人的分组管理，联系人的添加和删除，分组的添加和删除，后台的数据库是使用SQL Server2005创建的，数据库的界面在截图中

需要自己创建一个数据库，名字是addresslist

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Configuration;

namespace sqlconnection
{
    class DBHelper
    {
       
    public static string connString = ConfigurationManager.ConnectionStrings[“ConnectionString“].ConnectionString;
     //  public static string connString = @“Data Source=PC-20141117IJPO;Initial Catalog=addresslist;Integrated Security=True“;
    }
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件    1591808  2015-04-20 19:23  sqlconnection\database_bak\addresslist.bak

     文件        291  2015-04-28 15:51  sqlconnection\sqlconnection\App.config

     文件      20373  2015-04-13 15:15  sqlconnection\sqlconnection\bin\Debug\note.png

     文件     558566  2015-04-13 15:24  sqlconnection\sqlconnection\bin\Debug\page1.jpg

     文件     276890  2015-04-13 15:28  sqlconnection\sqlconnection\bin\Debug\page2.jpg

     文件     124111  2015-04-13 15:31  sqlconnection\sqlconnection\bin\Debug\page3.jpg

     文件      50130  2015-04-13 15:18  sqlconnection\sqlconnection\bin\Debug\password.png

     文件      19489  2015-04-13 15:07  sqlconnection\sqlconnection\bin\Debug\search.png

     文件    4533760  2015-05-13 08:52  sqlconnection\sqlconnection\bin\Debug\sqlconnection.exe

     文件        291  2015-04-28 15:51  sqlconnection\sqlconnection\bin\Debug\sqlconnection.exe.config

     文件     132608  2015-05-13 08:52  sqlconnection\sqlconnection\bin\Debug\sqlconnection.pdb

     文件      14328  2015-05-13 19:18  sqlconnection\sqlconnection\bin\Debug\sqlconnection.vshost.exe

     文件        291  2015-04-28 15:51  sqlconnection\sqlconnection\bin\Debug\sqlconnection.vshost.exe.config

     文件    4531200  2015-05-13 19:20  sqlconnection\sqlconnection\bin\Release\sqlconnection.exe

     文件        291  2015-04-28 15:51  sqlconnection\sqlconnection\bin\Release\sqlconnection.exe.config

     文件     105984  2015-05-13 19:20  sqlconnection\sqlconnection\bin\Release\sqlconnection.pdb

     文件      14328  2015-05-26 20:31  sqlconnection\sqlconnection\bin\Release\sqlconnection.vshost.exe

     文件        291  2015-04-28 15:51  sqlconnection\sqlconnection\bin\Release\sqlconnection.vshost.exe.config

     文件        490  2009-06-11 05:14  sqlconnection\sqlconnection\bin\Release\sqlconnection.vshost.exe.manifest

     文件       9020  2015-05-13 19:20  sqlconnection\sqlconnection\bin\Release\sqlconnection.xml

     文件        443  2015-04-28 14:48  sqlconnection\sqlconnection\DBHelper.cs

     文件       2169  2015-05-13 08:52  sqlconnection\sqlconnection\Form1.cs

     文件       4874  2015-04-20 15:25  sqlconnection\sqlconnection\Form1.Designer.cs

     文件     551466  2015-04-20 15:25  sqlconnection\sqlconnection\Form1.resx

     文件       3453  2015-04-20 15:26  sqlconnection\sqlconnection\FormAbout.cs

     文件      10509  2015-04-20 15:26  sqlconnection\sqlconnection\FormAbout.Designer.cs

     文件     594695  2015-04-20 15:26  sqlconnection\sqlconnection\FormAbout.resx

     文件       6033  2015-04-20 17:33  sqlconnection\sqlconnection\FormContactAdd.cs

     文件      14893  2015-04-20 17:33  sqlconnection\sqlconnection\FormContactAdd.Designer.cs

     文件     551466  2015-04-20 17:33  sqlconnection\sqlconnection\FormContactAdd.resx

............此处省略106个文件信息