C#中的线程和GUI元素

Question

我正在尝试创建一个基本的IRC客户端...但我的问题是让文本显示在RTF框中而没有它滞后

我决定使用线程,我想更新线程中的RTF框,但我不能因为它给出了关于RTF框元素不是静态的错误？

任何见解？如果你们想要,我会粘贴代码

好的,这里是代码(编辑凹凸？)

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Net.Sockets;
using System.IO;
using System.Threading;
using System.Net;

namespace IrcClient
{
    public partial class mainWindow : Form
    {
        static IRC client;
        static string newLine, oldLine;

        public mainWindow()
        {
            InitializeComponent();
        }

        private void main()
        {

        }

        private void mainWindow_Load(object sender, EventArgs e)
        {
            client = new IRC("irc.freenode.net" ,6667, "jimi__hendrix");
            new Thread(new ThreadStart(update)).Start();

        }

        private static void update()
        {
            newLine = client.sr.ReadLine();

            Thread.Sleep(50);
        }

        private void btnSend_Click(object sender, EventArgs e)
        {
            client.privmsg(inputBox.Text);
            messageBox.AppendText(inputBox.Text + "\n");
            inputBox.Text = "";
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            if (newLine != oldLine)
            {
                messageBox.AppendText(newLine + "\n");
                oldLine = newLine;
            }
        }
    }

    class IRC
    {
        TcpClient connection;
        NetworkStream stream;
        public StreamWriter sw;
        public StreamReader sr;
        string nick;

        public IRC(string server, int port, string Nick)
        {
            try
            {
                connection = new TcpClient(server, port);
                stream = connection.GetStream();
                sr = new StreamReader(stream);
                sw = new StreamWriter(stream);
                nick = Nick;
                sw.WriteLine("PASS " + "caruso11");
                sw.Flush();
                sw.WriteLine("NICK " + nick);
                sw.Flush();
                sw.WriteLine("USER Jimi__Hendrix 8 irc.freenode.net :Jimi__Hendrix");
                sw.Flush();
            }

            catch (Exception e)
            {
                MessageBox.Show(e.ToString());
            }
        }

        public void privmsg(string msg)
        {
            sw.WriteLine(msg);
            sw.Flush();
        }

        public void parse(string msg)
        {

        }
    }
}

一些方法是空白的,一些代码可以清理,但我想先完成这个...还有,视觉工作室生成的代码设置窗口

Answer 1

通常,由于Windows的限制,尝试从主线程以外的线程更新控件将不起作用.如果需要从工作线程调用方法或在RTF框上设置属性,则可能需要使用Invoke或BeginInvoke.这可能如下所示:

void MyThreadMethod()
{
    // stuff
    this.rtfBox.BeginInvoke( (MethodInvoker)(()=> this.rtfBox.Text = "foo") );
    // stuff
}

编辑:正如其他人所指出的,如果由于关于控件不是静态的错误而实际上无法编译,那么您可能尝试从静态函数引用成员变量,这是非法的.发布代码将有助于缩小问题范围.