网站建设技术应用：winform 异步程序进度条的实现

  这里用到的winform进度条控件，我是从网上找的，感觉控件总体上来说很美观，下载地址忘了在哪里了，所以各位看官可以去网上找一款心仪的进度条控件,好，废话就说到这里，我们开始了我们今天的任务。

第一步：把进度条控件拖拽到我们的form窗口中，设置下控件的属性，如：Step(步长)，Maxinum（最大值），Mininum（最小值），MainColor（主颜色）

 

第二步：双击我们要开始运行的Button按钮

 

        private void btnTongBu_Click(object sender, EventArgs e)
        {
            new System.Threading.Thread(new System.Threading.ThreadStart(StartProgress)).Start();
        }

在线程中开始执行我们需要开始显示进度条的工作任务。

 

        public void StartProgress()
        {
            ProgressStart progress= new ProgressStart (this);
            progress.onProgress += new ProgressStart .dProgress(dProgress_onProgressStart);
            progress.Start();
        }

 

       

        /// <summary>
        /// 处理类
        /// </summary>
        public class ProgressStart
        {
            ProductConvertInventory F = null;
            public ProgressStart ( ProductConvertInventory _F)
            {
                F = _F;
            }

            //委托
            public delegate void dProgress(long total, long current);
            //事件
            public event dProgress onProgress;
            //开始模拟工作
            public void Start()
            {
               if(F!=null)
               {
                   if (this.F.lblInventionID.Text != "")
                   {
                       if (this.F.lblComputationID.Text != "")
                       {
                           RM.BLL.db_product productBll = new RM.BLL.db_product();
                           DataTable dt = productBll.GetList();
                           int strNums = 0;
                           if (dt.Rows.Count > 0)
                           {
                               for (int i = 0; i < dt.Rows.Count; i++)
                               {
                                         
                                 int saa = ((i + 1) * 100 / dt.Rows.Count);
                                   if (onProgress!= null)
                                       onProgress(100, saa);
                                   System.Threading.Thread.Sleep(30);                               }
               }
            }
        }