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ASP.NET 进度条(附源代码)

news 来源：原创 2024/5/22 9:49:47

1. 进度条模板文件 ProgressBar.htm

1 < html >
2 < head >
3 < title ></ title >
4 < script language ="javascript" >
5 // 设置进度条进度
6 function SetPorgressBar(msg, pos)
7 {
8     ProgressBar.style.width = pos + " % " ;
9     WriteText( " Msg1 " ,msg + " 已完成 " + pos + " % " );
10 }
11
12 // 设置进度条完成信息
13 function SetCompleted(msg)
14 {
15      if (msg == "" )
16         WriteText( " Msg1 " , " 完成。 " );
17      else
18         WriteText( " Msg1 " ,msg);
19 }
20
21 // 更新文本显示信息
22 function WriteText(id, str)
23 {
24      var strTag = ' < font face = " Verdana, Arial, Helvetica " size = " 2 " color = " #ea9b02 " >< B > ' + str + ' </ B ></ font > ';
25      if (document.all) document.all[id].innerHTML = strTag;
26 }
27 </ script >
28 </ head >
29 < body >
30 < div id ="Msg1" >< font face ="Verdana, Arial, Helvetica" size ="2" color ="#ea9b02" >< b > 正在加载

</ b ></ font ></ div >
31 < div id ="ProgressBarSide" style ="color:Silver;border-width:1px;border-style:Solid;width:300px;" >
32 < div id ="ProgressBar" style ="background-color:#3366FF; height:21px; width:0%;" ></ div >
33 </ div >
34 </ body >
35 </ html >

2. Default.aspx.cs

1      protected void Page_Load( object sender, EventArgs e)
2     {
3          // 根据 ProgressBar.htm 显示进度条界面
4          string templateFileName = Path.Combine(Server.MapPath( " . " ), " ProgressBar.htm " );
5         StreamReader reader = new StreamReader(@templateFileName,System.Text.Encoding.GetEncoding( " gb2312 " ));
6          string html = reader.ReadToEnd();
7         reader.Close();
8         Response.Write(html);
9         Response.Flush();
10         System.Threading.Thread.Sleep( 200 );
11
12          // 根据处理任务处理情况更新进度条
13          string jsBlock;
14          for ( int i = 1 ; i <= 100 ; i ++ )
15         {
16             System.Threading.Thread.Sleep( 10 );
17             jsBlock = " <script>SetPorgressBar(' " + " A " + i.ToString() + " ',' " + i.ToString() + " '); </script> " ;
18
19             Response.Write(jsBlock);
20             Response.Flush();
21         }
22
23          // 处理完成
24         jsBlock = " <script>SetCompleted('处理完成。'); </script> " ;
25         Response.Write(jsBlock);
26         Response.Flush();
27     }

3. 运行 Default.aspx , 效果如下：