private void SendAck(byte[] data)
{
//发送ACK报文
MyDataGram pro = MyDataGram.DecodeMessage(data);
MyDataGram ack = new MyDataGram();
ack.DstID = pro.SrcID;
ack.SrcID = pro.DstID;
ack.Text = "__ack__" + pro.Text;
ack.Type = MessageType.Text;
string tempIP = "";
var resp = CSCore_instance.Query("q" + pro.SrcID);
if (resp == "n")
{
MessageBox.Show("当前好友不在线!");
return;
}
else
{
tempIP = resp;
}
SendUDPData(MyDataGram.EncodeMessage(ack), tempIP, ttPort);//danger!
}
public void SaveOneHistory(MyDataGram mdg)
{
/*
* 数据格式: ME_xxx_FRI_xxx.txt
* 发送方$信息类型$内容$时间
* ...
#time
*/
string Time = DateTime.Now.ToLongDateString().ToString();
var MyID = mdg.DstID;
var FriID = mdg.SrcID;
string temp = "";
temp = MyID + "$" + mdg.Type.ToString() + "$" + mdg.Text + "$" + Time;
string FileName = "ME_" + MyID + "_FRIEND_" + FriID + ".txt";
File.Delete(@".\data\" + FileName);
var fs = new FileStream(@".\data\" + FileName, FileMode.OpenOrCreate, FileAccess.ReadWrite);
StreamWriter sw = new StreamWriter(fs);
//规定数据结构:FriendID_FriendAlias
sw.WriteLine(temp);
sw.Flush();
sw.Close();
fs.Close();
}
private bool MatchP2PFile(MyDataGram mdg)
{
if (P2PFileBuffer == null && P2PFileIDList == null &&
P2PFileIndexPool == null && ActualFileLength == 0 &&
P2pMyOriginalPart == null)
{
return(false);
}
else
{
var arr = mdg.GroupFileID.Split(' ');
List <string> tempList = new List <string>();
int flag = 0;
foreach (var id in arr)
{
if (id != "")
{
if (!P2PFileIDList.Contains(id))
{
flag = 1;
}
}
}
if (flag == 1)
{
return(false);
}
return(true);
}
}
private void SendUDP()
{
if (friendID[0] == ' ')
{
MessageBox.Show("暂不支持UDP群组通话");
return;
}
var text = EditMessage.Text;
EditMessage.Text = "";
if (text == "")
{
MessageBox.Show("发送消息不能为空!");
return;
}
var temp = "q" + friendID;
var resp = CSCore_instance.Query(temp);
if (resp == "n")
{
MessageBox.Show("当前好友不在线!");
this.Close();
return;
}
else
{
friendIP = resp;
}
var msg = new ChattingMessage();
msg.CMType = MessageType.Text;
msg.Content = text;
msg.DstID = friendID;
msg.SrcID = MyID;
msg.SendTime = DateTime.Now.ToString();
//P2P发送
MyDataGram mdg = new MyDataGram();
mdg.SrcID = MyID;
mdg.Text = text;
mdg.DstID = friendID;
mdg.Type = MessageType.Text;
P2PCore_instance.SendUDPData(MyDataGram.EncodeMessage(mdg), friendIP, SendDataPort);
P2PCore_instance.AddUdpMessage(MyDataGram.EncodeMessage(mdg), friendIP, SendDataPort);
//回显
msg.Content = "我: " + msg.Content;
msg.hori = HorizontalAlignment.Right;
ChattingMessageList.Add(msg);
ChattingWindowListBox.ScrollIntoView(msg);
}
private void SendGroupMessage(string text)
{
var msg = new ChattingMessage();
foreach (var id in GroupIDList)
{
if (id == MyID)
{
continue;
}
//check online
var temp = "q" + id;
var resp = CSCore_instance.Query(temp);
if (resp == "n")
{
//MessageBox.Show("当前好友不在线!");
//this.Close();
continue;
}
else
{
friendIP = resp;
}
msg.CMType = MessageType.Text;
msg.Content = text;
msg.DstID = id;
msg.SrcID = MyID;
msg.SendTime = DateTime.Now.ToString();
//P2P发送
MyDataGram mdg = new MyDataGram();
mdg.SrcID = MyID;
mdg.Text = text;
mdg.DstID = id;
mdg.GroupID = friendID;
mdg.Type = MessageType.Text;
P2PCore_instance.SendData(MyDataGram.EncodeMessage(mdg), friendIP, SendDataPort);
}
if (msg.Content == "__init__")
{
return;
}
//回显
msg.Content = "我: " + msg.Content;
msg.hori = HorizontalAlignment.Right;
ChattingMessageList.Add(msg);
ChattingWindowListBox.ScrollIntoView(msg);
//遍历所有的group_id 给所有其他人发一个奇怪的message
}
private void ReceiveListener()
{
while (listening)
{
Thread.Sleep(500);
byte[] msg = null;
if (inter.messages.Count > 0)
{
//have new tcp message!
msg = inter.messages.Dequeue();
}
if (msg != null && msg.Length > 0)
{
MyDataGram pro = MyDataGram.DecodeMessage(msg);
if (pro.Type != MessageType.Disable)
{
//DistributeMessage(pro);
Dispatcher.BeginInvoke(new Dis(DistributeMessage), pro);
}
}
}
}
private void AlarmNewMessage(MyDataGram mdg)
{
//群组消息
string NewMsgAlias = "";
foreach (var fri in FriendList)
{
if (mdg.SrcID == fri.FriendID)
{
NewMsgAlias = fri.FriendAlias;
}
if (mdg.GroupID != "")
{
//群组
if (fri.FriendID[0] == ' ')
{
if (GroupIDMatch(mdg.GroupID, fri.FriendID))
{
NewMsgAlias = fri.FriendAlias;
}
}
}
}
if (NewMsgAlias != "")
{
MessageBox.Show("你收到一个来自: " + NewMsgAlias + "的消息!");
//打开再放进去这一条消息
var hist = new History();
hist.SaveOneHistory(mdg);
}
else
{
MessageBox.Show("你收到来自陌生人: " + mdg.SrcID + "的消息!");
var hist = new History();
hist.SaveOneHistory(mdg);
}
}
public static MyDataGram DecodeMessage(byte[] msg)
{
/* Protocol
* Begin Match: 4B
* SrcID: 4B
* DstID: 4B
* File Name: 4B
* File Part Length: 4B
* GroupID Length: 4B
* GroupID: ??
*
* GroupFileIDLength: 4B
* GroupFileID: ???
* GroupFileIndex: 4B
*
* DATA max = 32MB
* End Match: 4B
*/
int MessageLength = msg.Length;
MyDataGram result = new MyDataGram();
uint msgBeginMatch = BitConverter.ToUInt32(msg, 0);
uint msgEndMatch = BitConverter.ToUInt32(msg, MessageLength - 4);
if (msgBeginMatch != BeginMatch || msgEndMatch != EndMatch)
{
return(result);
}
uint type = BitConverter.ToUInt32(msg, 4);
result.Type = (MessageType)type;
result.SrcID = BitConverter.ToUInt32(msg, 8).ToString();
result.DstID = BitConverter.ToUInt32(msg, 12).ToString();
int FileNameLength = BitConverter.ToInt32(msg, 16);
int FileLength = BitConverter.ToInt32(msg, 20);
int GroupIDLength = BitConverter.ToInt32(msg, 24);
if (GroupIDLength != -1)
{
byte[] GroupNamePart = new byte[GroupIDLength];
Array.Copy(msg, 28, GroupNamePart, 0, GroupIDLength);
result.GroupID = Encoding.UTF8.GetString(GroupNamePart);
}
else
{
result.GroupID = "";
GroupIDLength = 0;
}
if (type == 1)
{
byte[] FileNamePart = new byte[FileNameLength];
Array.Copy(msg, 28 + GroupIDLength, FileNamePart, 0, FileNameLength);
result.Text = Encoding.UTF8.GetString(FileNamePart);
}
else
{
byte[] FileContent = new byte[FileLength];
byte[] FileNamePart = new byte[FileNameLength];
Array.Copy(msg, 28 + GroupIDLength, FileNamePart, 0, FileNameLength);
int GroupFileIDLength = BitConverter.ToInt32(msg, 28 + GroupIDLength + FileNameLength);
if (GroupFileIDLength >= 0)
{
//P2P
byte[] GroupFileNamePart = new byte[GroupFileIDLength];
Array.Copy(msg, 32 + GroupIDLength + FileNameLength, GroupFileNamePart, 0, GroupFileIDLength);
result.GroupFileID = Encoding.UTF8.GetString(GroupFileNamePart);
result.GroupFileIndex = BitConverter.ToInt32(msg, 32 + GroupIDLength + FileNameLength + GroupFileIDLength);
Array.Copy(msg, 36 + GroupIDLength + FileNameLength + GroupFileIDLength, FileContent, 0, FileLength);
}
else
{
Array.Copy(msg, 32 + GroupIDLength + FileNameLength, FileContent, 0, FileLength);
}
result.Text = Encoding.UTF8.GetString(FileNamePart);
result.FileContent = FileContent;
}
return(result);
}
public static byte[] EncodeMessage(MyDataGram mdg)
{
/* Protocol
* Begin Match: 4B
* SrcID: 4B
* DstID: 4B
* File Name: 4B
* File Part Length: 4B
* GroupID Length: 4B
* GroupID: ???
*
* GroupFileIDLength: 4B
* GroupFileID: ???
* GroupFileIndex: 4B
*
* DATA max = 32MB
* End Match: 4B
*/
List <byte> tempmsg = new List <byte>();
bool isFile = false;
int FileLength = -1;
int FileNameLength = -1;
int GroupIdLength = -1;
int GroupFileIdLength = -1;
if (mdg.GroupID != null)
{
GroupIdLength = Encoding.UTF8.GetByteCount(mdg.GroupID);
}
if (mdg.Type == MessageType.File || mdg.Type == MessageType.Image)
{
isFile = true;
FileLength = mdg.FileContent.Length;
if (GroupIdLength != -1)
{
GroupFileIdLength = Encoding.UTF8.GetByteCount(mdg.GroupFileID);
}
}
FileNameLength = Encoding.UTF8.GetByteCount(mdg.Text);
tempmsg.AddRange(BitConverter.GetBytes(BeginMatch));
tempmsg.AddRange(BitConverter.GetBytes((uint)mdg.Type));
tempmsg.AddRange(BitConverter.GetBytes(Convert.ToUInt32(mdg.SrcID)));
tempmsg.AddRange(BitConverter.GetBytes(Convert.ToUInt32(mdg.DstID)));
tempmsg.AddRange(BitConverter.GetBytes(FileNameLength));
tempmsg.AddRange(BitConverter.GetBytes(FileLength));
tempmsg.AddRange(BitConverter.GetBytes(GroupIdLength));
if (GroupIdLength != -1)
{
tempmsg.AddRange(Encoding.UTF8.GetBytes(mdg.GroupID));
}
tempmsg.AddRange(Encoding.UTF8.GetBytes(mdg.Text));
tempmsg.AddRange(BitConverter.GetBytes(GroupFileIdLength));
if (isFile)
{
if (GroupIdLength != -1)
{
//P2PFile
tempmsg.AddRange(Encoding.UTF8.GetBytes(mdg.GroupFileID));
tempmsg.AddRange(BitConverter.GetBytes(mdg.GroupFileIndex));
}
tempmsg.AddRange(mdg.FileContent);
}
tempmsg.AddRange(BitConverter.GetBytes(EndMatch));
return(tempmsg.ToArray());
}
private void AccecptUdp()
{
bool OnGoing = true;
while (OnGoing)
{
//todo:加功能,发送端的计时器
//收到udp
Thread.Sleep(50);
try
{
var buff = Udplistener.Receive(ref endpoint);
int flag = 0;
lock (inter)
{
MyDataGram pro = MyDataGram.DecodeMessage(buff);
if (pro.Text.Length > 7)
{
if (pro.Text.Substring(0, 7) == "__ack__")
{
for (int i = 0; i < UdpMessageList.Count; i++)
{
var tempudp = MyDataGram.DecodeMessage(UdpMessageList[i].data);
if (tempudp.SrcID == pro.DstID && tempudp.DstID == pro.SrcID)
{
if (tempudp.Text == pro.Text.Substring(7))
{
//成功收到了对应的ack
MessageBox.Show("收到了ACK报文.");
UdpMessageList.RemoveAt(i);
flag = 1;
}
}
}
}
}
if (pro.Type != MessageType.Disable)
{
if (pro.Text.Length < 7)
{
SendAck(buff);
}
else if (pro.Text.Substring(0, 7) != "__ack__")
{
SendAck(buff);
}
}
if (flag == 0)
{
inter.messages.Enqueue(buff);
}
}
}
catch
{
//do nothing
}
lock (inter)
{
OnGoing = inter.listening;
}
}
}
private async void DistributeMessage(MyDataGram mdg)
{
//群组的greetings消息:直接加入到通讯录
if (mdg.GroupID != "" && mdg.Text == "__init__" && mdg.DstID == account)
{
//Greetings Message
//Add to Addresbook
MilessFriend nf = new MilessFriend();
foreach (var fri in FriendList)
{
if (fri.FriendID == mdg.SrcID)
{
nf.FriendAlias = fri.FriendAlias;
break;
}
}
nf.FriendAlias = "Group with:" + nf.FriendAlias;
nf.FriendID = mdg.GroupID;
int chachong = 0;
foreach (var fri in FriendList)
{
var a = fri.FriendID;
//为分组
if (a[0] == ' ')
{
if (GroupIDMatch(fri.FriendID, a))
{
chachong = 1;
}
}
}
if (chachong == 0)
{
//本组之前没有出现过
FriendList.Add(nf);
listFriends.ScrollIntoView(nf);
}
return;
}
var ChattingWindowNumber = ChatWindowList.Count;
if (ChattingWindowNumber == 0)
{
AlarmNewMessage(mdg);
}
else
{
int FindWindow = 0;
foreach (var cw in ChatWindowList)
{
if (mdg.GroupID != "")
{
//由组内成员的学号判断是否为同一分组
if (GroupIDMatch(mdg.GroupID, cw.GetWindowInfo()))
{
cw.ReceiveMessage(mdg);
FindWindow = 1;
break;
}
}
if (mdg.SrcID == cw.GetWindowInfo())
{
//分给相应的窗口信息
cw.ReceiveMessage(mdg);
FindWindow = 1;
break;
}
}
if (FindWindow == 0)
{
AlarmNewMessage(mdg);
}
}
}
public void ReceiveMessage(MyDataGram mdg)
{
var msg = new ChattingMessage();
msg.SrcID = mdg.SrcID;
msg.DstID = mdg.DstID;
msg.CMType = (MessageType)(uint)mdg.Type;
//文件处理
if (msg.CMType == MessageType.File || msg.CMType == MessageType.Image)
{
//if (mdg.GroupID[0]==' ')
if (mdg.GroupID != "")
{
if (MatchP2PFile(mdg))
{
//same file
}
else
{
P2PFileBuffer = null;
P2PFileIDList = null;
P2PFileIndexPool = null;
ActualFileLength = 0;
P2pMyOriginalPart = null;
}
if (mdg.GroupFileIndex == MyP2PIndex)
{
//ask!
if (P2PFileIndexPool == null)
{
MessageBox.Show("Fatal!");
return;
}
//向请求方给予你的部分
MyDataGram Askdg = new MyDataGram();
Askdg.DstID = mdg.SrcID;
Askdg.SrcID = mdg.DstID;
Askdg.GroupFileID = mdg.GroupFileID;
Askdg.GroupID = mdg.GroupID;
Askdg.Text = mdg.Text;
Askdg.GroupFileIndex = MyP2PIndex;
Askdg.Type = MessageType.File;
Askdg.FileContent = P2pMyOriginalPart;
P2PCore_instance.SendData(MyDataGram.EncodeMessage(Askdg), friendIP, SendDataPort);
}
else
{
//receive!
var arr = mdg.GroupFileID.Split(' ');
if (P2PFileIDList == null)
{
P2PFileIDList = new List <string>();
MyP2PIndex = mdg.GroupFileIndex;
}
foreach (var id in arr)
{
if (id != "" && id != mdg.SrcID)
{
P2PFileIDList.Add(id);
}
}
int Totalnum = P2PFileIDList.Count;
//MessageBox.Show("Get P2P file part: " + mdg.GroupFileIndex + "in Total " + P2PFileIDList.Count().ToString() + "Parts");
if (P2PFileIndexPool == null)
{
P2PFileIndexPool = new int[Totalnum];
}
int filecutter = mdg.FileContent.Length;
if (P2PFileBuffer == null)
{
//larger than actual.
P2PFileBuffer = new byte[filecutter * (Totalnum + 1)];
ActualFileLength = 0;
P2pMyOriginalPart = new byte[filecutter];
Buffer.BlockCopy(mdg.FileContent, 0, P2pMyOriginalPart, 0, filecutter);
}
//put in
P2PFileIndexPool[mdg.GroupFileIndex - 1] = 1;
Buffer.BlockCopy(mdg.FileContent, 0, P2PFileBuffer, (mdg.GroupFileIndex - 1) * filecutter, filecutter);
ActualFileLength += filecutter;
int flag = 0;
foreach (int i in P2PFileIndexPool)
{
if (i != 1)
{
flag = 1;
}
}
byte[] FinalFile = null;
if (flag == 0)
{
//finish
FinalFile = new byte[ActualFileLength];
Buffer.BlockCopy(P2PFileBuffer, 0, FinalFile, 0, ActualFileLength);
}
if (FinalFile != null)
{
var question = "收到P2P的完整文件: " + mdg.GroupID + ",确定接受嘛?";
MessageBoxResult rst = MessageBox.Show(question, "Get File!", MessageBoxButton.YesNo);
if (rst == MessageBoxResult.Yes)
{
//MessageBox.Show(msg.Content);
var folder_dir = "./" + msg.SrcID + "/";
if (!Directory.Exists(folder_dir))
{
Directory.CreateDirectory(folder_dir);
}
var FileFullName = folder_dir + mdg.Text;
FileStream fs = File.OpenWrite(FileFullName);
fs.Write(FinalFile, 0, ActualFileLength);
fs.Close();
MessageBox.Show("接收文件成功,储存在: " + FileFullName);
}
else
{
return;
}
}
else
{
//not enough file: Ask file from others
for (int i = 0; i < P2PFileIndexPool.Length; i++)
{
if (P2PFileIndexPool[i] == 0)
{
//没有此部分文件
MyDataGram Askdg = new MyDataGram();
Askdg.DstID = P2PFileIDList[i];
Askdg.SrcID = MyID;
Askdg.GroupFileID = mdg.GroupFileID;
Askdg.GroupID = mdg.GroupID;
Askdg.Text = mdg.Text;
Askdg.GroupFileIndex = i + 1;
Askdg.Type = MessageType.File;
Askdg.FileContent = P2pMyOriginalPart;
P2PCore_instance.SendData(MyDataGram.EncodeMessage(Askdg), friendIP, SendDataPort);
}
}
}
}
}
else
{
var question = "你收到来自: " + msg.SrcID + "的文件,确定接受嘛?";
MessageBoxResult rst = MessageBox.Show(question, "Get File!", MessageBoxButton.YesNo);
if (rst == MessageBoxResult.Yes)
{
//MessageBox.Show(msg.Content);
var folder_dir = "./" + msg.SrcID + "/";
if (!Directory.Exists(folder_dir))
{
Directory.CreateDirectory(folder_dir);
}
var FileFullName = folder_dir + mdg.Text;
FileStream fs = File.OpenWrite(FileFullName);
fs.Write(mdg.FileContent, 0, mdg.FileContent.Length);
fs.Close();
MessageBox.Show("接收文件成功,储存在: " + FileFullName);
if (mdg.Type == MessageType.Image)
{
mdg.Text = FileFullName;
}
}
else
{
return;
}
}
}
//询问
if (mdg.GroupID != null)
{
msg.Content = msg.SrcID + ": " + mdg.Text;
}
else
{
msg.Content = friendAlias + ": " + mdg.Text;
}
if (mdg.Type == MessageType.Image)
{
msg.Content = mdg.Text;
string fullpath = Path.GetFullPath(msg.Content);
msg.BitMapSource = new BitmapImage(new Uri(fullpath, UriKind.Absolute));
}
msg.SendTime = DateTime.Now.ToString();
ChattingMessageList.Add(msg);
ChattingWindowListBox.ScrollIntoView(msg);
}
private async void SendFile_MouseLeftButtonUpAsync(object sender, MouseButtonEventArgs e)
{
//MessageBox.Show("Send File called!");
//open dialog
OpenFileDialog filedlg = new OpenFileDialog
{
Title = "请选择要发送的文件",
CheckFileExists = true,
CheckPathExists = true,
Multiselect = false
};
if (filedlg.ShowDialog() == true)
{
Array.Clear(FileBuffer, 0, FileMaxSize);
string filename = filedlg.FileName;
FileInfo info = new FileInfo(filename);
if (info.Length > FileMaxSize)
{
MessageBox.Show("文件过大,支持最大文件: 16MB");
return;
}
//MessageBox.Show(filename);
if (friendID[0] == ' ')
{
//P2P文件传输
List <string> OnLineIDList = new List <string>();
List <string> OnLineIPList = new List <string>();
string GroupFileID = " ";
foreach (var id in GroupIDList)
{
if (id != MyID)
{
var temp = "q" + id;
var resp = CSCore_instance.Query(temp);
if (resp != "n")
{
//danger!
OnLineIDList.Add(id);
OnLineIPList.Add(resp);
GroupFileID += id + " ";
}
}
}
int TotalOnlineNum = OnLineIDList.Count();
if (TotalOnlineNum == 0)
{
MessageBox.Show("无人在线, 别发了吧...");
return;
}
//load file
string ShortName = Path.GetFileName(filename);
FileStream fs = File.OpenRead(filename);
int FileLength = await fs.ReadAsync(FileBuffer, 0, FileBuffer.Length);
var FullFile = new byte[FileLength];
Buffer.BlockCopy(FileBuffer, 0, FullFile, 0, FileLength);
//cut file
int flag = 0;
int filecutter = (int)Math.Floor((double)(FileLength / TotalOnlineNum));
for (int i = 0; i < TotalOnlineNum; i++)
{
var mdg = new MyDataGram();
mdg.SrcID = MyID;
mdg.DstID = OnLineIDList[i];
mdg.Text = ShortName;
mdg.Type = MessageType.File;
mdg.GroupFileIndex = i + 1;
mdg.GroupFileID = GroupFileID;
mdg.GroupID = friendID;
if (i == TotalOnlineNum - 1)
{
mdg.FileContent = new byte[FileLength - i * filecutter];
Buffer.BlockCopy(FullFile, i * filecutter, mdg.FileContent, 0, FileLength - i * filecutter);
}
else
{
mdg.FileContent = new byte[filecutter];
Buffer.BlockCopy(FullFile, i * filecutter, mdg.FileContent, 0, filecutter);
}
try
{
P2PCore_instance.SendData(MyDataGram.EncodeMessage(mdg), OnLineIPList[i], SendDataPort);
}
catch (Exception ex)
{
MessageBox.Show("发送失败!接收方: " + OnLineIDList[i]);
return;
}
ChattingMessage cmsg = new ChattingMessage();
cmsg.SrcID = MyID;
cmsg.DstID = friendID;
cmsg.CMType = mdg.Type;
cmsg.Content = ShortName;
cmsg.SendTime = DateTime.Now.ToString();
if (cmsg.CMType == MessageType.Image)
{
cmsg.BitMapSource = new BitmapImage(new Uri(filename, UriKind.Absolute));
}
if (flag == 0)
{
cmsg.hori = HorizontalAlignment.Right;
ChattingMessageList.Add(cmsg);
ChattingWindowListBox.ScrollIntoView(cmsg);
}
flag = 1;
}
}
else
{
var temp = "q" + friendID;
var resp = CSCore_instance.Query(temp);
if (resp == "n")
{
MessageBox.Show("当前好友不在线!");
this.Close();
return;
}
else
{
friendIP = resp;
}
string ShortName = Path.GetFileName(filename);
var mdg = new MyDataGram();
FileStream fs = File.OpenRead(filename);
int FileLength = await fs.ReadAsync(FileBuffer, 0, FileBuffer.Length);
mdg.SrcID = MyID;
mdg.DstID = friendID;
mdg.Text = ShortName;
mdg.Type = MessageType.File;
if (IsImage(filename))
{
mdg.Type = MessageType.Image;
}
mdg.FileContent = new byte[FileLength];
Buffer.BlockCopy(FileBuffer, 0, mdg.FileContent, 0, FileLength);
try
{
P2PCore_instance.SendData(MyDataGram.EncodeMessage(mdg), friendIP, SendDataPort);
}
catch (Exception ex)
{
MessageBox.Show("发送失败!");
return;
}
ChattingMessage cmsg = new ChattingMessage();
cmsg.SrcID = MyID;
cmsg.DstID = friendID;
cmsg.CMType = mdg.Type;
cmsg.Content = ShortName;
cmsg.SendTime = DateTime.Now.ToString();
if (cmsg.CMType == MessageType.Image)
{
cmsg.BitMapSource = new BitmapImage(new Uri(filename, UriKind.Absolute));
}
cmsg.hori = HorizontalAlignment.Right;
ChattingMessageList.Add(cmsg);
ChattingWindowListBox.ScrollIntoView(cmsg);
}
}
MessageBox.Show("文件成功发送!");
return;
}