异步多线程与进度条

LZ这哪来的多线程？既然有四个方法各占25%，A中有88次，那就是88/25步长为1%，这很好做呀做个全局，求出步长1%为88/25次循环，以次类推

楼主如果你的需求是，先show 出代 progressBar 的窗口在调用
若干函数、
主窗口不能点这样的话根本无需线程、下面代码即可public partial class MainForm : Form
{
public MainForm()
{
InitializeComponent();
}
ProgressForm _progressForm = null;
private void button1_Click(object sender, EventArgs e)
{
/*
把 _progressForm.progressBar1 改为 public
*/
try
{

_progressForm = new ProgressForm();
_progressForm.Owner= this;
_progressForm.Show();

this.Enabled = false;
Run(100);
Run(200);
Run(88);
Run(60);

}
finally
{

if(_progressForm!=null)
{
_progressForm.Dispose();
}
this.Enabled = true;
}

}

public void Run(int count)
{
/*由于这些函数都是一样的所以写一个、作为演示*/
int p = _progressForm.progressBar1.Value;
//int count = 100;
float f = count / 25F; for (int i = 0; i < count; i++)
{
_progressForm.progressBar1.Value = p + (int)(i / f);
Application.DoEvents(); //可以不加这个
Thread.Sleep(10); //可以不加这个
}
}

}

ProgressForm 里无需代码！就放置一个 progressBar 设置好样式就可以了

progressBar 改为 public

看标题需要多线程..看内容不需要..同意FlashElf
不过看在200分的情况下还是写了一个多线程同步的.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using Microsoft.Build.Tasks.Deployment.ManifestUtilities;
using System.Threading;namespace WindowsApplication1
{
    public partial class Form1 : Form
    {        Thread thread1;
        Thread thread2;
        Thread thread3;
        Thread thread4;        delegate void VOID();

        Form2 form2 = new Form2();        bool end1 = false;
        bool end2 = false;
        bool end3 = false;
        bool end4 = false;        public Form1()
        {
            InitializeComponent();
            thread1 = new Thread(new ThreadStart(ThreadRun4));
            thread2 = new Thread(new ThreadStart(ThreadRun1));
            thread3 = new Thread(new ThreadStart(ThreadRun2));
            thread4 = new Thread(new ThreadStart(ThreadRun3));        }        void ThreadEnd()
        {
            if (end1 && end2 && end3 && end4)
            {

                form2.Close();
            }
        }        void ShowForm2()
        {
            if (form2.Visible != true)
            {
                form2.Show(this);
            }
        }

        float plan1 = 0;
        float plan2= 0;
        float plan3 = 0;
        float plan4 = 0;
        void SetPlan()
        {
            float temp = (plan1 + plan2 + plan3 + plan4) * 10000 * 0.25f;            form2.progressBar1.Value = (int)Math.Round(temp);
            form2.progressBar2.Value = (int)Math.Round(plan1 * 10000);
            form2.progressBar3.Value = (int)Math.Round(plan2 * 10000);
            form2.progressBar4.Value = (int)Math.Round(plan3 * 10000);
            form2.progressBar5.Value = (int)Math.Round(plan4 * 10000);
        }                private void button1_Click(object sender, EventArgs e)
        {
            thread1.Start();
            thread2.Start();
            thread3.Start();
            thread4.Start();
        }        Random random = new Random();        void ThreadRun4()
        {
            int maxCount;
            int sleep;
            lock (random)
            {
                maxCount = random.Next(10, 100);
                sleep = random.Next(100, 500);
            }
            this.Invoke(new VOID(ShowForm2));
            for (int a = 0; a <= maxCount;a++ )
            {
                Thread.Sleep(sleep);
                plan4 = (float)a / maxCount;
                this.Invoke(new VOID(SetPlan));
            }
            end4 = true;
            this.Invoke(new VOID(ThreadEnd));
        }        void ThreadRun1()
        {            int maxCount;
            int sleep;
            lock (random)
            {
                maxCount = random.Next(10, 100);
                sleep = random.Next(100, 500);
            }
            this.Invoke(new VOID(ShowForm2));
            for (int a = 0; a <= maxCount; a++)
            {
                Thread.Sleep(sleep);
                plan1 = (float)a / maxCount;
                this.Invoke(new VOID(SetPlan));
            }
            end1 = true;
            this.Invoke(new VOID(ThreadEnd));
        }
        void ThreadRun2()
        {            int maxCount;
            int sleep;
            lock (random)
            {
                maxCount = random.Next(10, 100);
                sleep = random.Next(100, 500);
            }
            this.Invoke(new VOID(ShowForm2));

            for (int a = 0; a <= maxCount; a++)
            {
                Thread.Sleep(sleep);
                plan2 = (float)a / maxCount;
                this.Invoke(new VOID(SetPlan));
            }
            end2 = true;
            this.Invoke(new VOID(ThreadEnd));
        }
        void ThreadRun3()
        {
            int maxCount;
            int sleep;
            lock (random)
            {
                maxCount = random.Next(10, 100);
                sleep = random.Next(100, 500);
            }
            this.Invoke(new VOID(ShowForm2));

            for (int a = 0; a <= maxCount; a++)
            {
                Thread.Sleep(sleep);
                plan3 = (float)a / maxCount;
                this.Invoke(new VOID(SetPlan));
            }
            end3 = true;
            this.Invoke(new VOID(ThreadEnd));
        }


    }
}namespace WindowsApplication1
{
    partial class Form1
    {
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }        #region Windows 窗体设计器生成的代码        /// <summary>
        /// 设计器支持所需的方法 - 不要
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.button1 = new System.Windows.Forms.Button();
            this.SuspendLayout();
            //
            // button1
            //
            this.button1.Location = new System.Drawing.Point(23, 33);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(75, 23);
            this.button1.TabIndex = 0;
            this.button1.Text = "button1";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            //
            // Form1
            //
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(284, 264);
            this.Controls.Add(this.button1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.ResumeLayout(false);        }        #endregion        private System.Windows.Forms.Button button1;    }
}

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;namespace WindowsApplication1
{
    public partial class Form2 : Form
    {
        public Form2()
        {
            InitializeComponent();
        }
    }
}namespace WindowsApplication1
{
    partial class Form2
    {
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }        #region Windows 窗体设计器生成的代码        /// <summary>
        /// 设计器支持所需的方法 - 不要
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.progressBar1 = new System.Windows.Forms.ProgressBar();
            this.progressBar2 = new System.Windows.Forms.ProgressBar();
            this.progressBar3 = new System.Windows.Forms.ProgressBar();
            this.progressBar4 = new System.Windows.Forms.ProgressBar();
            this.progressBar5 = new System.Windows.Forms.ProgressBar();
            this.SuspendLayout();
            //
            // progressBar1
            //
            this.progressBar1.Dock = System.Windows.Forms.DockStyle.Top;
            this.progressBar1.Location = new System.Drawing.Point(0, 0);
            this.progressBar1.Maximum = 10000;
            this.progressBar1.Name = "progressBar1";
            this.progressBar1.Size = new System.Drawing.Size(665, 27);
            this.progressBar1.TabIndex = 0;
            //
            // progressBar2
            //
            this.progressBar2.Dock = System.Windows.Forms.DockStyle.Top;
            this.progressBar2.Location = new System.Drawing.Point(0, 27);
            this.progressBar2.Maximum = 10000;
            this.progressBar2.Name = "progressBar2";
            this.progressBar2.Size = new System.Drawing.Size(665, 20);
            this.progressBar2.TabIndex = 1;
            //
            // progressBar3
            //
            this.progressBar3.Dock = System.Windows.Forms.DockStyle.Top;
            this.progressBar3.Location = new System.Drawing.Point(0, 47);
            this.progressBar3.Maximum = 10000;
            this.progressBar3.Name = "progressBar3";
            this.progressBar3.Size = new System.Drawing.Size(665, 20);
            this.progressBar3.TabIndex = 2;
            //
            // progressBar4
            //
            this.progressBar4.Dock = System.Windows.Forms.DockStyle.Top;
            this.progressBar4.Location = new System.Drawing.Point(0, 67);
            this.progressBar4.Maximum = 10000;
            this.progressBar4.Name = "progressBar4";
            this.progressBar4.Size = new System.Drawing.Size(665, 20);
            this.progressBar4.TabIndex = 3;
            //
            // progressBar5
            //
            this.progressBar5.Dock = System.Windows.Forms.DockStyle.Top;
            this.progressBar5.Location = new System.Drawing.Point(0, 87);
            this.progressBar5.Maximum = 10000;
            this.progressBar5.Name = "progressBar5";
            this.progressBar5.Size = new System.Drawing.Size(665, 20);
            this.progressBar5.TabIndex = 4;
            //
            // Form2
            //
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(665, 108);
            this.Controls.Add(this.progressBar5);
            this.Controls.Add(this.progressBar4);
            this.Controls.Add(this.progressBar3);
            this.Controls.Add(this.progressBar2);
            this.Controls.Add(this.progressBar1);
            this.Name = "Form2";
            this.Text = "Form2";
            this.ResumeLayout(false);        }        #endregion        public System.Windows.Forms.ProgressBar progressBar1;
        public System.Windows.Forms.ProgressBar progressBar2;
        public System.Windows.Forms.ProgressBar progressBar3;
        public System.Windows.Forms.ProgressBar progressBar4;
        public System.Windows.Forms.ProgressBar progressBar5;    }
}

zhiang75, 楼主是用一个进度条，你怎么给弄了5个

请问invoke是哪个对象的方法？ form? thread?

invoke 同步委托执行方法
Delete 的方法，Control也有此方法
一般做法是Control.Invoke(所需封送回窗体主线程处理的委托方法)
多线程环境里没把握最好用Control.BeginInvoke（），以免线程阻塞看LZ的说法：我觉得FormLoad时主线程执行方法，在各方法体完成时设置一个成员变量，以用来判断是否执行完毕。new 一个Thread（）弹出PorcessBar，慢慢跑进度条，一个方法结束，运行至25%。最后在主线程里关闭此线程，以前写WindowsForm的时候有写过，有点忘记了，LZ调试下好了。好像当时用了两个Thread才搞定，加主线程三个

sorry，上面打错，委托Delegate 而非delete

TO:blackboyofsnp
五个...一起跑...看进度...很有意思..

很感谢大家的帮助,这个代码比较难实现,方法里面的循环次数,外界是不知道的,是方法里面其它代码产生的,也就是说,做demo的话,循环次数写在里面
自己也写了一半(只有一个"load...."字样的dialog窗体,执行完方法,关闭dialog)
加上进度条的话,实现起来太难了.一会儿发代码让大家评评

OperationClass.cspublic class OperationClass
    {
        public void RunA()
        {
            System.Console.WriteLine("Begin RunA");
            System.Threading.Thread.Sleep(2000);
            System.Console.WriteLine("End RunA");
        }        public void RunB()
        {
            System.Console.WriteLine("Begin RunB");
            System.Threading.Thread.Sleep(2000);
            System.Console.WriteLine("End RunB");
        }        public void RunC()
        {
            System.Console.WriteLine("Begin RunC");
            System.Threading.Thread.Sleep(2000);
            System.Console.WriteLine("End RunC");
        }        /*public void RunD(ref int ProgressInt)
        {
            int x = 70;            for (int i = 0; i < x; i++)
            {
                if (ProgressInt != 70)
                    ProgressInt = 70 / x;                System.Threading.Thread.Sleep(500);
            }
        }*/
    }ProgressForm1.cs
现在只完成了一半,没有进度条,所以只有一load....字样的label,可以加张gif图片//private IAsyncResult aResult;
        public ProgressForm1()
        {
            //先将主窗体充为隐藏
            this.Visible = false;
            InitializeComponent();
        }        ///// <summary>
        ///// Delegate function to be invoked by main thread
        ///// </summary>
        //private void InvokeFun()
        //{
        //    while (!aResult.IsCompleted)
        //    {        //    }        //    this.Close();
        //}
        ///// <summary>
        ///// Thread function interface
        ///// </summary>
        //private void ThreadFun()
        //{
        //    //Create invoke method by specific function
        //    MethodInvoker mi = new MethodInvoker(this.InvokeFun);
        //    this.BeginInvoke(mi);
        //}        //public void SetIAsyncResult(ref IAsyncResult result)
        //{
        //    aResult = result;
        //}        private void ProgressForm1_Load(object sender, EventArgs e)
        {
            this.SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint | ControlStyles.DoubleBuffer, true);
            this.SuspendLayout();
            this.ResumeLayout();            //设窗体可见
            this.Visible = true;            //重绘当前窗体中的控件
            this.Refresh();
        }

MainForm.cs
如果大家不做真实进度的话,可以放一张load的图片,也可以代替,把下面一些代码中的ref int ProgressInt去掉就可以了public partial class MainForm : Form
    {
        private IAsyncResult aResult;
        public MainForm()
        {
            InitializeComponent();
        }        private void btnRun_Click(object sender, EventArgs e)
        {
            int ProgressInt = 0;            ProgressForm1 frm = new ProgressForm1();
            //利用线程回调
            AsyncCallback callback = new AsyncCallback(EndAsync);
            IAsyncResult result = BeginAsync(ref ProgressInt,callback, null);
            //frm.SetIAsyncResult(ref result);
            aResult = result;            MethodInvoker2 mi = new MethodInvoker2(InvokeFun);
            this.BeginInvoke(mi, new object[] { frm, ProgressInt });            frm.ShowDialog();
        }        //声明一个委托
        private delegate void DelegetRun(ref int ProgressInt);

        //同步写文件方法
        public static void ThreadProc(ref int ProgressInt)
        {
            OperationClass oc = new OperationClass();
            oc.RunA();
            //ProgressInt = 10;
            oc.RunB();
            //ProgressInt = 20;
            oc.RunC();
            //ProgressInt = 80;            //oc.RunD(ref ProgressInt);
        }        /// <summary>
        /// 异步开始
        /// </summary>
        public IAsyncResult BeginAsync(ref int ProgressInt,AsyncCallback ac, Object state)
        {
            DelegetRun d = new DelegetRun(ThreadProc);
            IAsyncResult result = d.BeginInvoke(ref ProgressInt,ac, state);
            return result;
        }        /// <summary>
        /// 异步结束
        /// </summary>
        public void EndAsync(IAsyncResult result)
        {
            //DelegetRun d = (DelegetRun)((AsyncResult)result).AsyncDelegate;
            //d.EndInvoke(result);
        }        /// <summary>
        /// Delegate function to be invoked by main thread
        /// </summary>
        private void InvokeFun(ProgressForm1 frm,ref int ProgressInt)
        {
            while (!aResult.IsCompleted)
            {
                //frm.progressBar1.Value = ProgressInt;
            }            frm.Close();
        }
}目前只完成这么多,希望高手赐教

少一句
private delegate void MethodInvoker2(ProgressForm1 frm, ref int ProgressInt);

调试易

异步多线程与进度条

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