[转]asp.net 实现进度条

建立一个WEB工程，添加新项->HTML页面，命名为ProgressBar.htm，内容如下：

<!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" ;
}

        //完成后隐藏进度条
        function SetCompleted()
          {
              ProgressBarSide.style.display = "none";
          }
     </script>
</head>
    <body>
    <div

style="position:absolute;height:21x;width:100px;color:Silver;border-width:1px;border-style:Solid;display:none">
        <div ></div>
    </div>
    </body>
</html>
后台代码，Default.aspx.cs：

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Threading;
using System.IO;

public partial class _Default : System.Web.UI.Page
{
    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();
      }

    private void Page_Load(object sender, System.EventArgs e)
      {
          beginProgress();

        for (int i = 1; i <= 100; i++)
          {
              setProgress(i);

            //此处用线程休眠代替实际的操作，如加载数据等
              System.Threading.Thread.Sleep(50);
          }

finishProgress();
}
}