public ChatServer()
 {
     InitializeComponent();
     this.setListBoxCallback  = new SetListBoxCallBack(SetListBox);
     this.setComboBoxCallback = new SetComboBoxCallBack(AddComboBoxItem);
     IPAddress[] addrIP = Dns.GetHostAddresses(this.txtIP.Text); //ip地址
     localAddress = addrIP[0];
 }
 private void SetComboBox(Werkbon werkbon)
 {
     if (werkbonList.InvokeRequired)
     {
         try
         {
             SetComboBoxCallBack d = new SetComboBoxCallBack(SetComboBox);
             this.Invoke(d, new object[] { werkbon });
         }
         catch (Exception e) { }
     }
     else
     {
         werkbonComboBox.Items.Add(werkbon);
     }
 }
 private void SetComboBox(Werkbon werkbon)
 {
     if (werkbonList.InvokeRequired)
     {
         try
         {
             SetComboBoxCallBack d = new SetComboBoxCallBack(SetComboBox);
             this.Invoke(d, new object[] { werkbon });
         }
         catch (Exception e) { }
     }
     else
         werkbonComboBox.Items.Add(werkbon);
 }