在WINFORM中將文本寫入文本框的文本屬性

Question

對WinForms不適用，但不適用於ASP.NET或C＃。試圖製作客戶端/服務器應用程序。成功地從服務器上的客戶端接收數據，但在服務器程序winform上顯示它有麻煩。代碼如下：

服務器應用程序的代碼：

using System; 
using System.Windows.Forms; 
using System.Net.Sockets; 
using System.Net; 

namespace Server_App 
{ 
    public partial class Form1 : Form 
    { 

     public Form1() 
     { 
      InitializeComponent(); 
     } 
     private void button1_Click(object sender, EventArgs e) 
     { 
      IPEndPoint ep = new IPEndPoint(IPAddress.Loopback, 1234); //configure host 
      TcpListenerEx listener = new TcpListenerEx(ep); //set host to listen 
      if (!listener.Active) 
      { 
       listener.Start(); 
      } 
      while (true) 
      { 
       const int byteSize = 1024 * 1024; 
       byte[] message = new byte[byteSize]; 
       var s = listener.AcceptTcpClient(); 
       s.GetStream().Read(message, 0, byteSize); //obtaining network stream and receiving data through .Read() 
       message = cleanMessage(message);     
       string g = System.Text.Encoding.UTF8.GetString(message); 
       addMessage(g);  
      } 
     } 

     private void addMessage(string m) 
     { 
       this.textBox1.Text = textBox1.Text + Environment.NewLine + " >> " + m; 
     } 

     private byte[] cleanMessage(byte[] rawMessageByte) 
     { 
      byte[] cleanMessage = rawMessageByte.Where(b => b != 0).ToArray(); 
      return cleanMessage; 
     } 
    } 
} 

客戶端應用代碼：按計劃，除了對服務器程序的Form1的文本框顯示接收到的數據

using System; 
using System.Net.Sockets; 
using System.Threading.Tasks; 
using System.Windows.Forms; 

namespace ClientApp 
{ 
    public partial class ClientApp : Form 
    { 
     public ClientApp() 
     { 
      InitializeComponent(); 
     } 

     private void button1_Click(object sender, EventArgs e) 
     { 
      var message = System.Text.Encoding.UTF8.GetBytes(txtFromClient.Text);    
      using (var client = new TcpClient("127.0.0.1", 1234))//make connection with the host 
      { 
       NetworkStream stream = client.GetStream();/*obtain network stream*/     
       stream.Write(message, 0, message.Length); 
      } 
     } 

     private void textBox1_Click(object sender, EventArgs e) 
     { 
      txtFromClient.Text = ""; 
     } 
    } 
} 

一切正在發生的事情。在調試時，我確認了this.textBox1.Text = textBox1.Text + Environment.NewLine + " >> " + m;行的變量m中收到的正確值。唯一的問題是，該值無法顯示，因此在服務器程序的Form1上可見。

有人可以請幫忙。

Answer 1

的幫助和指導，從@AdrianoRepetti，解決給定的問題，通過下面的代碼就坐滿：

using System; 
using System.Windows.Forms; 
using System.Net.Sockets; 
using System.Net; 
using System.Linq; 

namespace Server_App 
{ 
    public partial class Form1 : Form 
    { 
     public Form1() 
     { 
      InitializeComponent(); 
      backgroundWorker1.WorkerReportsProgress = true; 
     } 

     private void button1_Click(object sender, EventArgs e) 
     { 
      IPEndPoint ep = new IPEndPoint(IPAddress.Loopback, 1234); //configure host 
      if(!backgroundWorker1.IsBusy) 
      { 
       backgroundWorker1.RunWorkerAsync(ep); //called to start a process on the worker thread and send argument (listener) to our workerprocess. 
      } 
     } 

     private void backgroundWorker1_DoWork(object sender, System.ComponentModel.DoWorkEventArgs e) 
     { 
      IPEndPoint ep = e.Argument as IPEndPoint; 
      TcpListenerEx listener = new TcpListenerEx(ep); 
      if (!listener.Active) 
      { 
       listener.Start(); 
      } 
      while (true) 
      { 
       try 
       { 
        const int byteSize = 1024 * 1024; 
        byte[] message = new byte[byteSize]; 
        using (var s = listener.AcceptTcpClient()) 
        { 
         s.GetStream().Read(message, 0, byteSize);//obtaining network stream and receiving data through .Read() 
         message = cleanMessage(message); 
         string g = System.Text.Encoding.UTF8.GetString(message); 
         backgroundWorker1.ReportProgress(0, g); 
        }      
       } 
       catch (Exception ex) 
       { 
        backgroundWorker1.ReportProgress(0, ex.Message); 
       } 
       finally 
       { 
        listener.Stop(); 
       } 
      }    
     } 

     private void backgroundWorker1_ProgressChanged(object sender, System.ComponentModel.ProgressChangedEventArgs e) 
     { 
      textBox1.AppendText(Environment.NewLine + ">> " + e.UserState); 
     } 

     private byte[] cleanMessage(byte[] rawMessageByte) 
     { 
      byte[] cleanMessage = rawMessageByte.Where(b => b != 0).ToArray(); 
      return cleanMessage; 
     } 
    } 
} 

希望它能幫助。