C# 多线程更新Processbar

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C# 多线程更新Processbar

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;

namespace temp
{
delegate void SetValueCallback(int value);

    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            Thread t = new Thread(new ThreadStart(Foo));

t.Start();

        }
        private void Foo()
        {

for (int i = 1; i <= 100; i++)
{

Thread.Sleep(100);

SetProcessBarValue(i);

SetLabelValue(i);

}

private void SetLabelValue(int value)
{

// InvokeRequired required compares the thread ID of the

// calling thread to the thread ID of the creating thread.

// If these threads are different, it returns true.

if (this.label1.InvokeRequired)
{

SetValueCallback d = new SetValueCallback(SetLabelValue);

this.Invoke(d, new object[] { value });

}

else
{

this.label1.Text = value.ToString() + '%';

}

private void SetProcessBarValue(int value)
{

// InvokeRequired required compares the thread ID of the

// calling thread to the thread ID of the creating thread.

// If these threads are different, it returns true.

if (this.progressBar1.InvokeRequired)
{

SetValueCallback d = new SetValueCallback(SetProcessBarValue);

this.Invoke(d, new object[] { value });

}

else
{

this.progressBar1.Value = value;

}

}
}

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