1、当有大量数据需要计算、显示在界面或者调用sleep函数时，容易导致界面卡死，可以采用多线程加委托的方法解决
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.Diagnostics;
using System.Runtime.InteropServices;
using System.Threading;namespace WindowsFormTest{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
Control.CheckForIllegalCrossThreadCalls = false;
}Thread drawThread = null;
delegate void drawDelegate(int i);//开启子线程
private void btnTest_Click(object sender, EventArgs e)
{
closeThread();drawThread = new Thread(new ThreadStart(draw));
drawThread.IsBackground = true;
drawThread.Start();
}//draw子线程，循环调用test函数,并且等待一会
private void draw()
{
try
{
for (int i = 0; i < 100000000; i++)
{
test(i);
Thread.Sleep(100);
}
}
catch (System.Exception e1)
{
return;
}closeThread();
}//test函数，向textBox中添加数据
private void test(int i)
{
if (textBox1.InvokeRequired)
{
drawDelegate d = new drawDelegate(test);
Invoke(d, new object[] {i });
}
else
{
textBox1.AppendText(i.ToString()+"\r\n");
}
}//结束子线程
private void closeThread()
{
if (drawThread != null)
{
if (drawThread.IsAlive)
{
drawThread.Abort();
}
}
}//窗体关闭时，关闭子线程
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
closeThread();
}
}
}
WinForm多线程+委托防止界面卡死