using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Text;
using?System.Windows.Forms;
using?System.Data.SqlClient;

namespace?MyQQ
{
????///?

????///?聊天窗體
????///?

????public?partial?class?ChatForm?:?Form
????{
????????public?int?friendId;?????//?當前聊天的好友號碼
????????public?string?nickName;??//?當前聊天的好友昵稱
????????public?int?faceId;???????//?當前聊天的好友頭像Id????????

????????public?ChatForm（）
????????{
????????????InitializeComponent（）;
????????}

????????//?窗體加載時的動作
????????private?void?ChatForm_Load（object?sender?EventArgs?e）
????????{
????????????//?設置窗體標題
????????????this.Text?=?string.Format（“與{0}聊天中“nickName）;

????????????//?設置窗體頂部顯示的好友信息
????????????picFace.Image?=?ilFaces.Images[faceId];
????????????lblFriend.Text?=?string.Format（“{0}（{1}）“nickNamefriendId）;

????????????//?讀取所有的未讀消息，顯示在窗體中
????????????ShowMessage（）;
????????}

????????//?關閉窗體
????????private?void?btnClose_Click（object?sender?EventArgs?e）
????????{
????????????this.Close（）;
????????}

????????//?發(fā)送消息
????????private?void?btnSend_Click（object?sender?EventArgs?e）
????????{
????????????if?（txtChat.Text.Trim（）?==?““）?//?不能發(fā)送空消息
????????????{
????????????????MessageBox.Show（“不能發(fā)送空消息！“?“提示“?MessageBoxButtons.OK?MessageBoxIcon.Information）;
????????????????return;
????????????}
????????????else?if?（txtChat.Text.Trim（）.Length?>?50）
????????????{
????????????????MessageBox.Show（“消息內容過長，請分為幾條發(fā)送！“?“提示“?MessageBoxButtons.OK?MessageBoxIcon.Information）;
????????????????return;
????????????}
????????????else??//?發(fā)送消息，寫入數(shù)據(jù)庫
????????????{
????????????????//?MessageTypeId:1-表示聊天消息，為簡化操作沒有讀取數(shù)據(jù)表，到S2可以用常量或者枚舉實現(xiàn)
????????????????//?MessageState:0-表示消息狀態(tài)是未讀
????????????????int?result?=?-1;?//?表示操作數(shù)據(jù)庫的結果
????????????????string?sql?=?string.Format（
????????????????????“INSERT?INTO?Messages?（FromUserId?ToUserId?Message?MessageTypeId?MessageState）?VALUES?（{0}{1}‘{2}‘{3}{4}）“
????????????????????UserHelper.loginId?friendId?txtChat.Text.Trim（）?1?0）;
????????????????try
????????????????{
????????????????????//?執(zhí)行命令
????????????????????SqlCommand?command?=?new?SqlCommand（sql?DBHelper.connection）;
????????????????????DBHelper.connection.Open（）;
????????????????????result?=?command.ExecuteNonQuery（）;
????????????????}
????????????????catch?（Exception?ex）
????????????????{
????????????????????Console.WriteLine（ex.Message）;
????????????????}
????????????????finally
????????????????{
????????????????????DBHelper.connection.Close（）;
????????????????}
????????????????if?（result?!=?1）
????????????????{
????????????????????MessageBox.Show（“服務器出現(xiàn)意外錯誤！“?“抱歉“?MessageBoxButtons.OK?MessageBoxIcon.Error）;
????????????????}
????????????????txtChat.Text?=?““;??//?輸入消息清空
????????????????this.Close（）;
????????????}
????????}

????????///?

????????///?讀取所有的未讀消息，顯示在窗體中
????????///?

????????private

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????901??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ.sln

?????文件??????65024??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ.suo

?????文件???????6297??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ\ChatForm.cs

?????文件??????13743??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ\ChatForm.Designer.cs

?????文件????1503146??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ\ChatForm.resx

?????文件????????384??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ\DBHelper.cs

?????文件???????1863??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ\FacesForm.cs

?????文件??????11006??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ\FacesForm.Designer.cs

?????文件????1415047??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ\FacesForm.resx

?????文件???????3817??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ\LoginForm.cs

?????文件???????9976??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ\LoginForm.Designer.cs

?????文件??????76726??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ\LoginForm.resx

?????文件??????18798??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ\MainForm.cs

?????文件??????21834??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ\MainForm.Designer.cs

?????文件????1853034??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ\MainForm.resx

?????文件???????6172??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ\MyQQ.csproj

?????文件???????1150??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ\MyQQ.ico

?????文件??????13272??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ\PersonalInfoForm.cs

?????文件??????38745??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ\PersonalInfoForm.Designer.cs

?????文件????1600920??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ\PersonalInfoForm.resx

?????文件????????467??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ\Program.cs

?????文件??????10463??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ\RegisterForm.cs

?????文件??????17054??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ\RegisterForm.Designer.cs

?????文件?????123334??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ\RegisterForm.resx

?????文件???????4184??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ\RequestForm.cs

?????文件??????12140??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ\RequestForm.Designer.cs

?????文件????1457628??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ\RequestForm.resx

?????文件??????14398??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ\SearchFriendForm.cs

?????文件??????36601??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ\SearchFriendForm.Designer.cs

?????文件?????142904??2008-09-09?17:37??MyQQ\項目參考代碼\MyQQ\MyQQ\SearchFriendForm.resx

............此處省略45個文件信息