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;
}
}
}
}