1 using System;
  2 using System.Collections.Generic;
  3 using System.ComponentModel;
  4 using System.Data;
  5 using System.Drawing;
  6 using System.Text;
  7 using System.Windows.Forms;
  8 using System.Data.SqlClient;
  9 namespace MyQQ
 10 {
 11     public partial class ChatForm : Form
 12     {
 13         public int friendId;     // 当前聊天的好友号码
 14         public string nickName;  // 当前聊天的好友昵称
 15         public int faceId;       // 当前聊天的好友头像Id
 16         string messageIdsString = "";  // 消息的Id组成的字符串
 17         string message;         // 消息内容
 18         string messageTime;     // 消息发出的时间
 19         public ChatForm()
 20         {
 21             InitializeComponent();
 22         }
 23
 24         private void ChatForm_Load(object sender, EventArgs e)
 25         {
 26
 27             this.Text = string.Format("与{0}聊天中...", nickName); // 设置窗体标题
 28             lblFriend.Text = string.Format("{0}({1})", nickName, friendId); //当前聊天的好友昵称和号码
 29             picFace.Image = ilFace.Images[faceId];
 30
 31             // 读取所有的未读消息，显示在窗体中
 32             Showview();
 33         }
 34
 35         private void Showview()
 36         {
 37             string str = string.Format(
 38                 "SELECT Id, Message,MessageTime From Messages WHERE FromUserId={0} AND ToUserId={1} AND MessageTypeId=1 AND MessageState=0",
 39             friendId, UserHelper.loginId);
 40
 41             try
 42             {
 43                 SqlCommand com = new SqlCommand(str, DBHelper.connection);
 44                 DBHelper.connection.Open();
 45                 SqlDataReader reader = com.ExecuteReader();
 46                 while (reader.Read())
 47                 {
 48                     messageIdsString += Convert.ToString(reader["Id"]) + "_";
 49                     message = Convert.ToString(reader["Message"]);
 50                     messageTime = Convert.ToDateTime(reader["MessageTime"]).ToString();
 51                     txtMessage.Text += string.Format("\n{0}  {1}\n  {2}", nickName, messageTime, message);
 52                 }
 53                 reader.Close();
 54             }
 55             catch (Exception ex)
 56             {
 57
 58                 MessageBox.Show(ex.Message);
 59             }
 60             finally
 61             {
 62                 DBHelper.connection.Close();
 63             }
 64
 65             if (messageIdsString.Length > 1) //查看Id是否有效
 66             {
 67                 messageIdsString.Remove(messageIdsString.Length - 1);
 68                 NewMethod(messageIdsString, '_');
 69             }
 70         }
 71
 72         private void NewMethod(string messageIdsString, char separator)
 73         {
 74             string[] chai = messageIdsString.Split(separator);
 75             string sql = "update Messages set MessageState=1 where Id=";
 76             string updateSql;
 77             try
 78             {
 79                 SqlCommand com = new SqlCommand();
 80
 81                 com.Connection = DBHelper.connection;
 82                 DBHelper.connection.Open();
 83                 foreach (string id in chai)
 84                 {
 85                     if (id != "")
 86                     {
 87                         updateSql = sql + id;
 88                         com.CommandText = updateSql;
 89                         int result = com.ExecuteNonQuery();
 90                     }
 91                 }
 92             }
 93             catch (Exception ex)
 94             {
 95                 MessageBox.Show(ex.Message);
 96
 97             }
 98             finally
 99             {
100                 DBHelper.connection.Close();
101             }
102         }
103
104         private void btnClose_Click(object sender, EventArgs e)
105         {
106             this.Close();
107         }
108         private void btnSend_Click(object sender, EventArgs e)
109         {
110             //判断txtWrit该控件是否为空，如是提示用户信息
111             if (txtWrit.Text.Trim() == "")
112             {
113                 MessageBox.Show("请输入信息！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
114                 return;
115             }
116             //判断数组长度是否大于等于150，如果大于等于150其实用户信息
117             else if (txtWrit.Text.Trim().Length >= 150)
118             {
119                 MessageBox.Show("此消息过长！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
120                 return;
121             }
122             //否则，执行try块语句(实现增加信息)
123             else
124             {
125                 try
126                 {
127                     //创建sql语句实现增加信息
128                     string sql = string.Format(
129                             "insert into Messages(FromUserId,ToUserId,Message,MessageTypeId,MessageState) values({0},{1},'{2}',1,0)",
130                             UserHelper.loginId, friendId, txtWrit.Text.Trim());
131                     //创建command对象
132                     SqlCommand command = new SqlCommand(sql, DBHelper.connection);
133                     //打开数据库连接
134                     DBHelper.connection.Open();
135                     //执行非查询（增加）命令
136                     command.ExecuteNonQuery();
137                 }
138                 catch (Exception ex)
139                 {
140                     //提示错误信息
141                     MessageBox.Show(ex.Message);
142                 }
143                 finally
144                 {
145                     //关闭数据库连接
146                     DBHelper.connection.Close();
147                 }
148             }
149
150         }
151
152     }
153 }

 1 using System;
 2 using System.Collections.Generic;
 3 using System.ComponentModel;
 4 using System.Data;
 5 using System.Drawing;
 6 using System.Text;
 7 using System.Windows.Forms;
 8 using System.Data.SqlClient;//导入命名空间
 9 namespace MyQQ
10 {
11     public partial class FaceForm : Form
12     {
13
14         public FaceForm()
15         {
16             InitializeComponent();
17         }
18
19         private void butfaceNO_Click(object sender, EventArgs e)
20         {
21             DialogResult result = MessageBox.Show("确定要退出吗？","温馨提示",MessageBoxButtons.OKCancel,MessageBoxIcon.Question);
22             if (result==DialogResult.OK)
23             {
24                 this.Close();//执行关闭当前窗体语句块
25             }
26
27         }
28
29         private void butfaceOK_Click(object sender, EventArgs e)
30         {
31             //判断是否选中图像，如果未选中图像点击确定的时候提示用户信息是否退出
32             if (listface.SelectedItems.Count==0)
33             {
34                DialogResult result= MessageBox.Show("确定要退出吗？","温馨提示",MessageBoxButtons.OKCancel,MessageBoxIcon.Information);
35                if (result == DialogResult.OK)
36                {
37                    this.Close();//执行关闭当前窗体
38                }
39             }
40             else
41             {
42                 //使用变量faceIds来存取选中的该图片
43                 int faceIds = listface.SelectedItems[0].ImageIndex;
44
45
46                 try
47                 {
48                     //创建sql语句(更新语句)
49                     string sql = string.Format(
50                                "update Users set FaceId={0} where Id={1}",
51                                faceIds, UserHelper.loginId);
52                     //创建command对象
53                     SqlCommand command = new SqlCommand(sql, DBHelper.connection);
54                     //打开数据库连接
55                     DBHelper.connection.Open();
56                     //执行非查询命令(更新)
57                     int result = command.ExecuteNonQuery();
58                     if (result > 0)
59                     {
60                         MessageBox.Show("操作成功！");//提示用户信息操作成功
61                     }
62                     else
63                     {
64                         MessageBox.Show("操作失败！");//提示用户信息操作失败
65                     }
66                 }
67                 catch (Exception ex)
68                 {
69
70                     MessageBox.Show(ex.Message);//提示错误信息
71                 }
72                 finally
73                 {
74                     DBHelper.connection.Close();//关闭数据库连接
75                 }
76
77             }
78
79         }
80
81         private void FaceForm_Load(object sender, EventArgs e)
82         {
83             //执行在加载的时候显示信息(ListView控件)
84             for (int i = 0; i < ilFaces.Images.Count; i++)
85             {
86                 //执行增加项语句块（从下标为0开始进行显示）
87                 listface.Items.Add(i.ToString());
88                 listface.Items[i].ImageIndex = i;
89
90
91             }
92         }
93     }
94 }

  1 using System;
  2 using System.Collections.Generic;
  3 using System.ComponentModel;
  4 using System.Data;
  5 using System.Drawing;
  6 using System.Text;
  7 using System.Windows.Forms;
  8 using System.Data.SqlClient;//导入命名空间
  9 namespace MyQQ
 10 {
 11     public partial class RegisterForm : Form
 12     {
 13         string sex = "";//声明一个成员变量并且初始化
 14
 15
 16         public RegisterForm()
 17         {
 18             InitializeComponent();
 19         }
 20
 21         private void button2_Click(object sender, EventArgs e)
 22         {
 23             this.Close();
 24         }
 25
 26         private void button1_Click(object sender, EventArgs e)
 27         {
 28
 29             if (rbt.Checked)
 30             {
 31                 sex="男";
 32                 Register();
 33             }
 34             else
 35             {
 36                 sex="女";
 37                 Register();
 38             }
 39
 40         }
 41
 42         private void Register()
 43         {
 44             if (tbopwd1.Text == tbopwd.Text)
 45             {
 46                 int star = 0;
 47                 int boo = 0;
 48                 switch (BooldStyle.Text)
 49                 {
 50                     case "A型":
 51                         boo = 1;
 52                         break;
 53                     case "B型":
 54                         boo = 2;
 55                         break;
 56                     case "O型":
 57                         boo = 3;
 58                         break;
 59                     default:
 60                         boo = 4;
 61                         break;
 62                 }
 63                 switch (Star.Text)
 64                 {
 65                     case "白羊座":
 66                         star = 1;
 67                         break;
 68                     case "双子座":
 69                         star = 3;
 70                         break;
 71                     case "巨蟹座":
 72                         star = 4;
 73                         break;
 74                     case "狮子座":
 75                         star = 5;
 76                         break;
 77                     case "处女座":
 78                         star = 6;
 79                         break;
 80                     case "天秤座":
 81                         star = 7;
 82                         break;
 83                     case "天蝎座":
 84                         star = 8;
 85                         break;
 86                     case "射手座":
 87                         star = 9;
 88                         break;
 89                     case "摩羯座":
 90                         star = 10;
 91                         break;
 92                     case "水瓶座":
 93                         star = 11;
 94                         break;
 95                     case "双鱼座":
 96                         star = 12;
 97                         break;
 98                     default:
 99                         star = 2;
100                         break;
101                 }
102
103                 try
104                 {
105                     string sql = string.Format("insert into dbo.Users(Age,Sex,LoginPwd,NickName,Name,StarId,BloodTypeId) values({0},'{1}','{2}','{3}','{4}','{5}',{6})", tboAge.Text, sex, tbopwd.Text, tboName.Text, ming.Text, star, boo);
106                     SqlCommand command = new SqlCommand(sql, DBHelper.connection);
107                     DBHelper.connection.Open();
108                     int result = command.ExecuteNonQuery();
109                     if (result == 1)
110                     {
111                         //查询新增加的记录的标识号的代码
112                         sql = "select @@Identity from Users";
113                         command.CommandText = sql;      //新增指定command对象的SQL语句
114
115                         //执行查询语句
116                         int num = Convert.ToInt32(command.ExecuteScalar());
117                         string a = string.Format("注册成功！你的MyQQ号是{0}", num);
118                         MessageBox.Show(a, "注册成功", MessageBoxButtons.OK, MessageBoxIcon.Information);
119                         this.Close();
120                     }
121
122
123                 }
124                 catch (Exception ex)
125                 {
126
127                     MessageBox.Show(ex.Message);
128                 }
129                 finally
130                 {
131                     DBHelper.connection.Close();
132                 }
133             }
134             else
135             {
136                 MessageBox.Show("你的两次密码输入不相同！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
137
138             }
139         }
140
141
142     }
143 }

  1 using System;
  2 using System.Collections.Generic;
  3 using System.ComponentModel;
  4 using System.Data;
  5 using System.Drawing;
  6 using System.Text;
  7 using System.Windows.Forms;
  8 using System.Data.SqlClient;
  9 namespace MyQQ
 10 {
 11     public partial class SearchFriendForm : Form
 12     {
 13         bool a = false;//声明一个布尔型的变量a并初始值设为false
 14         private DataSet dataset = new DataSet();//创建datasSet对象
 15         private SqlDataAdapter adapter;//声明变量adaper
 16
 17         public SearchFriendForm()
 18         {
 19             InitializeComponent();
 20         }
 21
 22         /// <summary>
 23         /// 点击查找的事件
 24         /// </summary>
 25         private void btnSerch_Click_1(object sender, EventArgs e)
 26         {
 27             panel1.Visible = true;//将panel1设为true（显示）
 28             //创建sql语句(实现查询)
 29             string sql = "select Id,NickName,Age,Sex from Users";
 30             //给变量赋值
 31             adapter = new SqlDataAdapter(sql, DBHelper.connection);
 32             //使用SqlDataAdaper对象的Fill()方法进行填充
 33             adapter.Fill(dataset);
 34             //执行显示（下标从0开始）
 35             dtVsearch.DataSource = dataset.Tables[0];
 36
 37
 38
 39             if (tabSearch.SelectedIndex == 0)
 40             {
 41
 42                 //精确查找
 43                 rigorSearch();
 44             }
 45             else
 46             {
 47                 //高级查找
 48                 AdvancedSearch();
 49
 50             }
 51         }
 52         /// <summary>
 53         /// 点击加为好友的事件
 54         /// </summary>
 55         private void btnAdd_Click(object sender, EventArgs e)
 56         {
 57             //要加朋友的QQ号码
 58             int friendId = searchID();
 59             //判断是否已被加
 60             a = HasAdded(friendId);
 61
 62             //好友策略
 63             //count等于1：允许任何人加我为好友
 64             //count等于2：需要身份验证才能加我为好友
 65             //count等于3：不允许任何人加我为好友
 66             int count = tactic(friendId);
 67             if (friendId==UserHelper.loginId)
 68             {
 69                 MessageBox.Show("不可以加自己为好友");
 70             }
 71             //可以直接加
 72             else if (a == false && count == 1)
 73             {
 74                 MessageBox.Show("添加成功");
 75                 //添加操作
 76                 addFriendId(friendId);
 77
 78             }
 79             else if (a == false && count == 2)
 80             {
 81                 MessageBox.Show("对方需要验证，验证消息已发出");
 82                 if (friendId!=UserHelper.loginId)
 83                 {
 84                      tacticres(friendId);
 85                 }
 86             //验证添加
 87             }
 88             else if (a == true)
 89             {
 90                 MessageBox.Show("已是你的好友了");
 91             }
 92             else
 93             {
 94                 MessageBox.Show("添加失败，对方不应许任何人加为好友");
 95             }
 96         }
 97         /// <summary>
 98         /// 点击上一步的事件
 99         /// </summary>
100         private void btnBack_Click(object sender, EventArgs e)
101         {
102             this.panel1.Visible = false;//将panel1初始设为false (不可见)
103         }
104         /// <summary>
105         /// 点击关闭的事件
106         /// </summary>
107         private void butoff_Click(object sender, EventArgs e)
108         {
109             this.Close();//关闭当前窗体
110         }
111         /// <summary>
112         /// 点击关闭的事件
113         /// </summary>
114         private void btnClose_Click(object sender, EventArgs e)
115         {
116             this.Close();//关闭当前窗体
117         }
118
119         //高级查找方法
120         private void AdvancedSearch()
121         {
122             //创建sql语句（查询语句）
123             string sql = "";
124             sql = "SELECT Id,NickName,Age,Sex FROM Users";
125             //声明变量初始化和使用变量来存取对应的值
126             string termComAge = "";
127             string termComSex = comSex.Text;
128             //使用switch结构来实现年龄在某个范围内进行运用
129             switch (comAge.SelectedIndex)
130             {
131                 case 1:
132                     termComAge = " Age>=0 AND Age<10";
133                     break;
134                 case 2:
135                     termComAge = " Age>=10 AND Age<20";
136                     break;
137                 case 3:
138                     termComAge = " Age>=20 AND Age<30";
139                     break;
140                 case 4:
141                     termComAge = " Age>=30 AND Age<40";
142                     break;
143                 case 5:
144                     termComAge = " Age>=40 AND Age<50";
145                     break;
146                 case 6:
147                     termComAge = " Age>=50";
148                     break;
149                 default:
150                     termComAge = "";
151                     break;
152             }
153             //判断如果这两个控件的值如果都为空的话，提示用户相应的信息
154             if (termComAge == "" && termComSex == "")
155             {
156                 MessageBox.Show("你还没有选择的啊？？");
157                 return;
158             }
159             //判断如果这两个控件的值如果不为空的话，进行相应的计算
160             else
161             {
162                 if (termComAge != "" && termComSex == "")
163                 {
164                     sql += string.Format(" where {0}", termComAge);
165                 }
166                 else if (termComAge == "" && termComSex != "")
167                 {
168                     sql += string.Format(" where Sex='{0}'", termComSex);
169                 }
170                 else
171                 {
172                     sql += string.Format(" where {0} AND Sex='{1}'", termComAge, termComSex);
173                 }
174
175             }
176             //清空表中的信息
177             dataset.Tables[0].Clear();
178             //给变量赋值
179             adapter = new SqlDataAdapter(sql, DBHelper.connection);
180             //使用SqldataAdaper对象的fill()方法进行填充
181             adapter.Fill(dataset);
182             //执行显示语句块（并且下标从0开始）
183             dtVsearch.DataSource = dataset.Tables[0];
184         }
185         //精确查找方法
186         private void rigorSearch()
187         {
188             //创建sql语句块（实现查询）
189             string sql = "";
190
191             sql = "SELECT Id,NickName,Age,Sex FROM Users";
192
193             if (radexactitude.Checked == true)
194             {
195                 if (friendQQ.Text == "" && friendName.Text == "")
196                 {
197
198                     //MessageBox.Show("你还没有填条件的啊@ ！@");
199                 }
200                 else if (friendQQ.Text != "" && friendName.Text == "")
201                 {
202                     sql += string.Format(" where ID={0}", int.Parse(friendQQ.Text.Trim()));
203                 }
204                 else
205                 {
206                     sql += string.Format(" where NickName like '%{0}%'", friendName.Text);
207                 }
208             }
209             //清空表中的信息
210             dataset.Tables[0].Clear();
211             //给变量赋值
212             adapter = new SqlDataAdapter(sql, DBHelper.connection);
213             //使用SqldataAdaper对象的fill()方法进行填充
214             adapter.Fill(dataset);
215             //执行显示语句块（并且下标从0开始）
216             dtVsearch.DataSource = dataset.Tables[0];
217         }
218         //发送验证请求方法
219         private int tacticres(int friendId)
220         {
221             int result = 0; // 操作结果
222             string sql = string.Format("INSERT INTO Messages (FromUserId, ToUserId, MessageTypeId, MessageState) VALUES ({0},{1},{2},{3})",
223                 UserHelper.loginId, friendId, 2, 0);
224             try
225             {
226                 // 执行添加操作
227                 SqlCommand command = new SqlCommand(sql, DBHelper.connection);
228                 //打开数据库连接
229                 DBHelper.connection.Open();
230                 //使用变量result来存取执行命令后的值
231                 result = command.ExecuteNonQuery();
232                 if(result>0)
233                 {
234                     MessageBox.Show("操作成功！");//提示用户信息操作成功
235                 }
236                 else
237                 {
238                     MessageBox.Show("操作失败！");//提示用户信息操作失败
239                 }
240             }
241             catch (Exception ex)
242             {
243                 //提示错误信息
244                 MessageBox.Show(ex.Message);
245             }
246             finally
247             {
248                 //关闭数据库连接
249                 DBHelper.connection.Close();
250             }
251             return result;
252         }
253         //添加操作方法
254         private int addFriendId(int friendId)
255         {
256             int result = 0;
257
258             DBHelper.connection.Open();
259             try
260             {
261                 string sql = string.Format("insert into dbo.Friends(HostId,FriendId)values ({0},{1})", UserHelper.loginId, friendId);
262                 //创建command对象
263                 SqlCommand command = new SqlCommand(sql, DBHelper.connection);
264                 //执行命令(使用变量result来存取执行后的值)
265                result = command.ExecuteNonQuery();
266             }
267             catch (Exception ex)
268             {
269                 //提示错误信息
270                 MessageBox.Show(ex.Message);
271             }
272             finally
273             {
274                 //关闭数据库连接
275                 DBHelper.connection.Close();
276             }
277             return result;
278         }
279         //好友策略方法
280         private int tactic(int friendId)
281         {
282
283             int count = 0;//声明变量count并且初始化
284             try
285             {
286                 //创建sql语句块（实现查询）
287                 string sql = string.Format("select FriendshipPolicyId from dbo.Users where id={0}", friendId);
288                 //创建command对象
289                 SqlCommand command = new SqlCommand(sql, DBHelper.connection);
290                 //打开数据库连接
291                 DBHelper.connection.Open();
292                 //执行命令（并且使用变量count来存取,在之前也要进行转换为整型）
293                 count = int.Parse(command.ExecuteScalar().ToString());
294
295
296             }
297             catch (Exception ex)
298             {
299                 //提示错误信息
300                 MessageBox.Show(ex.Message);
301             }
302             finally
303             {
304                 //关闭数据库连接
305                 DBHelper.connection.Close();
306             }
307             return count;
308         }
309         //获取要加的朋友的QQ号码方法
310         private int searchID()
311         {
312             int friendId = 0;
313
314             //当没有选中任何一行
315             if (dtVsearch.SelectedRows.Count == 0)
316             {
317                 MessageBox.Show("请选择一个好友！");
318             }
319             //确保第一个单元格有值
320             else if (dtVsearch.SelectedRows[0].Cells[0] != null)
321             {
322                 //获得第一个单元格的值
323                 friendId = int.Parse(dtVsearch.SelectedRows[0].Cells[0].Value.ToString());
324
325             }
326             return friendId;
327         }
328         //是否已被加的方法
329         public bool HasAdded(int friendId)
330         {
331             //创建sql语句（实现查询）
332             string sql = string.Format("select id from dbo.Friends where HostId ={0} and FriendId={1}", UserHelper.loginId, friendId);
333             //打开数据库连接
334             DBHelper.connection.Open();
335             //执行try块语句
336             try
337             {
338                 SqlCommand command = new SqlCommand(sql, DBHelper.connection);
339                 string reader = Convert.ToString(command.ExecuteScalar());
340                 //不可以加
341                 if (reader != "")
342                 {
343                     this.a = true;
344                 }
345                 //可以加
346                 else
347                 {
348                     this.a = false;
349                 }
350
351             }
352             catch (Exception ex)
353             {
354                 //提示错误信息
355                 Console.WriteLine(ex.Message);
356             }
357             finally
358             {
359                 //关闭数据库连接
360                 DBHelper.connection.Close();
361
362             }
363             return a;
364         }
365
366         private void SearchFriendForm_Load(object sender, EventArgs e)
367         {
368
369         }
370
371
372
373
374
375
376     }
377 }