指定目录中有若干个很小的文本文件，现在需要使用多线程进行读取。
使用 backgroundworker 或者 delegate 委托的方式实现，下面是使用委托的线程安全模式， textBox1是你的编辑框：
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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Threading;
namespace MultiThread
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
using (FolderBrowserDialog fbd = new FolderBrowserDialog())
{
fbd.Description = "选择要多线程读取文件的路径";
fbd.ShowNewFolderButton = false;
if (fbd.ShowDialog(this) == DialogResult.OK)
{
DirectoryInfo di = new DirectoryInfo(fbd.SelectedPath);
foreach (FileInfo fi in di.GetFiles("*.txt"))
{
Thread t = new Thread(this.InvokeThread);
t.Start(fi.FullName);
}
}
}
}
private delegate void ReadFile(object filePath);
private void InvokeThread(object filePath)
{
if (this.InvokeRequired)
{
this.Invoke(new ReadFile(ReadFileContent), filePath);
}
else
{
ReadFileContent(filePath);
}
}
private void ReadFileContent(object filePath)
{
this.textBox1.AppendText(File.ReadAllText(filePath.ToString(), Encoding.Default));
this.textBox1.AppendText("\r\n");
}
}
}