using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Threading;
using System;
using System.Threading;
namespace DataImportFromAccess
{
//声明一个回调函数:注意传递的参数要与Example类中的函数参数类型一致
public delegate void ExampleCallback(int lineCount, Label lb);
public class Form1{
public Form1()
{
InitializeComponent();
}
public void CurrentNumber(int tempCurrent,Label lb)
{
lb.Text = tempCurrent.ToString();
}
private void button1_Click(object sender, EventArgs e)
{
ThreadWithData twd = new ThreadWithData(1, 100,this.label1,new ExampleCallback(CurrentNumber));
Thread td = new Thread(new ThreadStart(twd.RunMethod));
td.Start();
}
private void button2_Click(object sender, EventArgs e)
{
ThreadWithData twd = new ThreadWithData(2, 200,this.label2, new ExampleCallback(CurrentNumber));
Thread td = new Thread(new ThreadStart(twd.RunMethod));
td.Start();
}
}
public class ThreadWithData
{
private int start = 0;
private int end = 0;
private ExampleCallback callBack;
private Label lb;
public ThreadWithData(int start,int end,Label lb,ExampleCallback callBack)
{
this.start = start;
this.end = end;
this.callBack=callBack;
this.lb = lb;
}
public void RunMethod()
{
for(int i=start;i<end;i++)
{
Thread.Sleep(1000);
if (callBack != null)
callBack(i,lb);
}
}
}
}