private void btnSendMessage_Click(object sender, RoutedEventArgs e) //发送消息
{
if (sendmsg.Text == string.Empty)
{
MessageBox.Show("消息不能为空");
return;
}
GroupMessage message = new GroupMessage();
message.Content = sendmsg.Text;
message.Userid = msgsender.Id;
message.Groupid = group.Id;
message.Sendtype = 4;
message.Sendtime = DateTime.Now;
message.Sendfile = null;
GroupMessageBLL bLL = new GroupMessageBLL();
if (!bLL.SendMessage(message))
{
MessageBox.Show("服务器异常");
}
else
{
string msg = "\n" + msgsender.Name + " " + message.Sendtime.ToString() + "\n" + message.Content + "\n";
ShowMessage.AppendText(msg);
sendmsg.Text = "";
ShowMessage.ScrollToEnd();
msgscroll.ScrollToEnd();
}
}
private void btnSendFile_Click(object sender, RoutedEventArgs e) //发送群文件
{
OpenFileDialog op = new OpenFileDialog();
Nullable <bool> result = op.ShowDialog();
if (result == true)
{
string filename = op.FileName;
sendmsg.Text = filename;
FileStream fs = new FileStream(@filename, FileMode.Open, FileAccess.Read);
long FileSize = fs.Length;
byte[] rawData = new byte[FileSize];
fs.Read(rawData, 0, (int)FileSize);
fs.Close();
GroupMessage message = new GroupMessage();
message.Content = sendmsg.Text;
message.Userid = msgsender.Id;
message.Groupid = group.Id;
message.Sendtype = 6;
message.Sendtime = DateTime.Now;
message.Sendfile = rawData;
GroupMessageBLL bLL = new GroupMessageBLL();
if (!bLL.SendMessage(message))
{
MessageBox.Show("服务器异常");
}
else
{
string strArr = message.Content.Substring(message.Content.LastIndexOf('\\') + 1);
string fname = ".\\groupfile\\" + strArr;
string msg = "\n" + msgsender.Name + " " + message.Sendtime.ToString() + "\n" + "文件: " + fname + "\n";
ShowMessage.AppendText(msg);
sendmsg.Text = "";
ShowMessage.ScrollToEnd();
msgscroll.ScrollToEnd();
}
}
}
public void RefreshGroupMessage()
{
ShowMessage.Text = "";
n = n + 10;
groupmessages.Clear();
groupmessages = groupmessagebll.GetSomeMessages(group, n);
foreach (GroupMessage m in groupmessages)
{
UserBLL userBLL = new UserBLL();
User temp = null;
userBLL.GetUserByID(m.Userid, out temp);
if (m.Sendtype == 6)
{
string strArr = m.Content.Substring(m.Content.LastIndexOf('\\') + 1);
string filename = ".\\groupfile\\" + strArr;
string msg = "\n" + temp.Name + " " + m.Sendtime.ToString() + "\n" + "文件:" + filename + "\n";
ShowMessage.AppendText(msg);
if (!Directory.Exists(".\\groupfile\\"))
{
Directory.CreateDirectory(".\\groupfile\\");
}
if (!File.Exists(filename))
{
FileStream fs = new FileStream(filename, FileMode.OpenOrCreate, FileAccess.Write);
fs.Write(m.Sendfile, 0, m.Sendfile.Length);
fs.Close();
}
}
else
{
string msg = "\n" + temp.Name + " " + m.Sendtime.ToString() + "\n" + m.Content + "\n";
ShowMessage.AppendText(msg);
}
}
ShowMessage.ScrollToEnd();
msgscroll.ScrollToEnd();
}
private void showMessageInfo(String mesg)
{
MethodInvoker action = delegate { ShowMessage.AppendText(mesg); };
ShowMessage.BeginInvoke(action);
}
