实现winfrom进度条及进度信息提示，winfrom程序假死处理

 功能描述：本方法实现进度条显示，方法执行信息反馈显示。用到的技术点为 线程与代理。

     

    步骤一：添加主页面。

      

 

控件名称：

button1；

 

  步骤二：主页面后台代码

        using System.Threading;//引用此命名

 

        //创建代理。

        private Form6 myProcessBar = null;//弹出的子窗体(用于显示进度条)
        private delegate bool IncreaseHandle(int nValue,string vinfo);//代理创建
        private IncreaseHandle myIncrease = null;//声明代理，用于后面的实例化代理
        private int vMax = 100;//用于实例化进度条，可以根据自己的需要，自己改变

 

        private void button1_Click(object sender, EventArgs e)
        {
            Thread thdSub = new Thread(new ThreadStart(ThreadFun));
            thdSub.Start();
        }

        private void ThreadFun()
        {
            MethodInvoker mi = new MethodInvoker(ShowProcessBar);
            this.BeginInvoke(mi);

            Thread.Sleep(100);
            object objReturn = null;
            for (int i = 0; i < vMax; i++)
            {

//该段方法可以放在具体的执行顺序里执行
                objReturn = this.Invoke(this.myIncrease, new object[] { 2, i.ToString() + "\r\n" });
                Thread.Sleep(50);
            }
        }

        private void ShowProcessBar()
        {
            myProcessBar = new Form6(vMax);
            myIncrease = new IncreaseHandle(myProcessBar.Increase);
            myProcessBar.ShowDialog();
            myProcessBar = null;
        }

 

步骤三：创建子窗体

 控件名称：

progressBar1；textBox1

 

步骤四：子窗体，后台代码

        public Form6(int vMax)
        {
            InitializeComponent();

            this.progressBar1.Maximum = vMax;
        }

        public bool Increase(int nValue,string nInfo)
        {
            if (nValue > 0)
            {
                if (progressBar1.Value + nValue < progressBar1.Maximum)
                {
                    progressBar1.Value += nValue;
                    this.textBox1.AppendText(nInfo);
                    Application.DoEvents();
                    progressBar1.Update();
                    progressBar1.Refresh();
                    this.textBox1.Update();
                    this.textBox1.Refresh();
                    return true;
                }
                else
                {
                    progressBar1.Value = progressBar1.Maximum;
                    this.textBox1.AppendText(nInfo);
                    //this.Close();//执行完之后，自动关闭子窗体
                    return false;
                }
            }
            return false;
        }