我该如何是好，请大仙们帮帮我~~！

[笑羽酣天]

我想做个socket来测试测试，结果服务器端老是出错：说是“跨執行緒作業無效: 存取控制項 'listBox1' 時所使用的執行緒與建立控制項的執行緒不同。”
出错的地方是“label1.Text = iep.ToString();”和“listBox1.Items.Add(msg);”。
我该如何是好，请大仙们帮帮我~~！
以下是代码

private void BeginListen()
        {
            IPAddress ServerIP = GetServerIP();
            IPEndPoint iep = new IPEndPoint(ServerIP, 8000);
            socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            byte[] byteMessage = new byte[100];
            label1.Text = iep.ToString();
            socket.Bind(iep);
            while (true)
            {
                try
                {
                    socket.Listen(5);
                    Socket newSocket = socket.Accept();
                    newSocket.Receive(byteMessage);

                    string sTime = DateTime.Now.ToShortTimeString();
                    string msg = sTime + ":Message from:";
                    msg += newSocket.RemoteEndPoint.ToString() + Encoding.Default.GetString(byteMessage);
                    listBox1.Items.Add(msg);
                }
                catch (SocketException ex)
                {
                    label1.Text += ex.ToString();
                }
                
            }
        }

[soaringbird]

執行緒？线程吧？
界面控件是不能直接跨线程访问的，得用委托

[soaringbird]

// The following code assumes a 'ListBox' and a 'Button' control are added to a form,
// containing a delegate which encapsulates a method that adds items to the listbox.

public class MyThreadClass
{
MyFormControl myFormControl1;
public MyThreadClass(MyFormControl myForm)
{
myFormControl1 = myForm;
}

public void Run()
{
// Execute the specified delegate on the thread that owns
// 'myFormControl1' control's underlying window handle.
myFormControl1.Invoke(myFormControl1.myDelegate);
}
}

[heyu1000]

BeginListen方法是不是另外开了一个线程，如果是这样的话，看看下面的代码是否对你有用
if (this.InvokeRequired)
{
this.Invoke(new TestDelegate(TestEventHandler), new object[] { obj});
return;
}
这个代码只是参照，你直接用肯定不行,你可以查一下InvokeRequired以及Invoke的用法

[soaringbird]

using System;
using System.Drawing;
using System.Windows.Forms;
using System.Threading;

   public class MyFormControl : Form
   {
      public delegate void AddListItem(String myString);
      public AddListItem myDelegate;
      private Button myButton;
      private Thread myThread;
      private ListBox myListBox;
      public MyFormControl()
      {
         myButton = new Button();
         myListBox = new ListBox();
         myButton.Location = new Point(72, 160);
         myButton.Size = new Size(152, 32);
         myButton.TabIndex = 1;
         myButton.Text = "Add items in list box";
         myButton.Click += new EventHandler(Button_Click);
         myListBox.Location = new Point(48, 32);
         myListBox.Name = "myListBox";
         myListBox.Size = new Size(200, 95);
         myListBox.TabIndex = 2;
         ClientSize = new Size(292, 273);
         Controls.AddRange(new Control[] {myListBox,myButton});
         Text = " 'Control_Invoke' example ";
         myDelegate = new AddListItem(AddListItemMethod);
      }
      static void Main()
      {
         MyFormControl myForm = new MyFormControl();
         myForm.ShowDialog();
      }
      public void AddListItemMethod(String myString)
      {
            myListBox.Items.Add(myString);
      }
      private void Button_Click(object sender, EventArgs e)
      {
         myThread = new Thread(new ThreadStart(ThreadFunction));
         myThread.Start();
      }
      private void ThreadFunction()
      {
         MyThreadClass myThreadClassObject  = new MyThreadClass(this);
         myThreadClassObject.Run();
      }
   }
   public class MyThreadClass
   {
      MyFormControl myFormControl1;
      public MyThreadClass(MyFormControl myForm)
      {
         myFormControl1 = myForm;
      }
      String myString;

      public void Run()
      {


         for (int i = 1; i <= 5; i++)
         {
            myString = "Step number " + i.ToString() + " executed";
            Thread.Sleep(400);
            // Execute the specified delegate on the thread that owns
            // 'myFormControl1' control's underlying window handle with
            // the specified list of arguments.
            myFormControl1.Invoke(myFormControl1.myDelegate,
                                   new Object[] {myString});
         }
      }
   }

[笑羽酣天]

谁在来出个注意

[bloodish]

AsyncOperation asyncOperation = AsyncOperationManager.CreateOperation(null);
asyncOperation.Post
{
delegate
{BeginListen();},null
};

[笑羽酣天]

我试 了几个但都不成功，能給点详细的代码吗？

[nnoovvee]

up

[abcyzq]

[Quote=引用 3 楼 heyu1000 的回复:]
BeginListen方法是不是另外开了一个线程，如果是这样的话，看看下面的代码是否对你有用
if (this.InvokeRequired)
{
this.Invoke(new TestDelegate(TestEventHandler), new object[] { obj});
return;
}
这个代码只是参照，你直接用肯定不行,你可以查一下InvokeRequired以及Invoke的用法
[/Quote]

与此楼的方法的方法差不多，楼主去查下Invoke,InvokeRequired相关资料。

[soaringbird]

private void BeginListen()
{
IPAddress ServerIP = GetServerIP();
IPEndPoint iep = new IPEndPoint(ServerIP, 8000);
socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
byte[] byteMessage = new byte[100];
label1.Text = iep.ToString();//需要在invoke中
socket.Bind(iep);
while (true)
{
try
{
socket.Listen(5);
Socket newSocket = socket.Accept();
newSocket.Receive(byteMessage);

string sTime = DateTime.Now.ToShortTimeString();
string msg = sTime + ":Message from:";
msg += newSocket.RemoteEndPoint.ToString() + Encoding.Default.GetString(byteMessage);
listBox1.Items.Add(msg); //需要在invoke中
}
catch (SocketException ex)
{
label1.Text += ex.ToString(); //需要在invoke中
}

}
}