C# 读取大数据需要:进度条

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1新建一个ProgressBar.htm页面
2Html代码,画进度条,注意doctype的属性和html的属性
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" id="mainWindow">
 <head>
  <title>足下教育</title>
  <script language="javascript">
        function SetPorgressBar(pos)
        {
            //设置进度条居中
            var screenHeight = window["mainWindow"].offsetHeight;
            var screenWidth = window["mainWindow"].offsetWidth;
            ProgressBarSide.style.width = Math.round(screenWidth / 2);
            ProgressBarSide.style.left = Math.round(screenWidth / 4);
            ProgressBarSide.style.top = Math.round(screenHeight / 2);
            ProgressBarSide.style.height = "21px";
            ProgressBarSide.style.display = "";
            
            //设置进度条百分比                      
            ProgressBar.style.width = pos + "%";
            ProgressText.innerHTML = pos + "%";
        }
        //完成后隐藏进度条
        function SetCompleted()
        {      
            ProgressBarSide.style.display = "none";
        }
  </script>
 </head>
 <body>
  <div id="ProgressBarSide" style="position:absolute;height:21x;width:100px;color:Silver;border-width:1px;border-style:Solid;display:none">
   <div id="ProgressBar" style="position:absolute;height:21px;width:0%;background-color:#3366FF"></div>
   <div id="ProgressText" style="position:absolute;height:21px;width:100%;text-align:center"></div>
  </div>
 </body>
</html>
 
3C#代码
加入命名空间:
using System.Threading;
应的地方代码
beginProgress();
for (int i = 1; i <= 100; i++)
{
    setProgress(i);
    //下面写处理数据的代码
    System.Threading.Thread.Sleep(10);
 }
finishProgress();
相关的方法
#region 进度条方法
  private void beginProgress()
  {
   //根据ProgressBar.htm显示进度条界面
   string templateFileName = Path.Combine(Server.MapPath("."), "ProgressBar.htm");
   StreamReader reader = new StreamReader(@templateFileName,System.Text.Encoding.GetEncoding("GB2312"));
   string html = reader.ReadToEnd();
   reader.Close();
   Response.Write(html);
   Response.Flush();
  }
  private void setProgress(int percent)
  {
   string jsBlock = "<script>SetPorgressBar('" + percent.ToString() + "'); </script>";
   Response.Write(jsBlock);
   Response.Flush();
  }
  private void finishProgress()
  {
   string jsBlock = "<script>SetCompleted();</script>";
   Response.Write(jsBlock);
   Response.Flush();
  }
  #endregion

原文出处:http://blog.sina.com.cn/s/blog_725ce14a0100o9g9.html