AJAX实例：动态进度条

【 tulaoshi.com - Web开发 】

1.建立进度条html页面

progressbar.htm

script language="javascript"

function setPgb(pgbID, pgbValue)
{
if ( pgbValue = 100 )
{
//debugger;
if (lblObj = document.getElementById(pgbID+'_label'))
{
lblObj.innerHTML = pgbValue + '%'; // change the label value
}
if ( pgbObj = document.getElementById(pgbID) )
{
var divChild = pgbObj.children[0];
pgbObj.children[0].style.width = pgbValue + "%";
}
window.status = "数据读取" + pgbValue + "%，请稍候";
}
if ( pgbValue == 100 )
{
window.status = "数据读取已经完成";
proBar.style.display="none";
Table1.style.display="none";
}
}

/script
html
head
link rel="stylesheet" type="text/css" href="common.css" /
/head
body topmargin="0" leftmargin="0"
table width="100%" height="100%" ID="Table1" runat=server
tr
td align="center" valign="middle"
DIV class="bi-loading-status" id="proBar" style="DISPLAY: ; LEFT: 425px; TOP: 278px"
DIV class="text" id="pgbMain_label" align="left"/DIV
DIV class="progress-bar" id="pgbMain" align="left"
DIV STYLE="WIDTH:10%"/DIV
/DIV
/DIV
/td
/tr
/table
/body
/html2.建立样式common.css.bi-loading-status {}{
/**//*position: absolute;*/
width: 150px;
padding: 1px;
overflow: hidden;
}
.bi-loading-status .text {}{
white-space: nowrap;
overflow: hidden;
width: 100%;
text-overflow: ellipsis;
padding: 1px;
}
.bi-loading-status .progress-bar {}{
border: 1px solid ThreeDShadow;
background: window;
height: 10px;
width: 100%;
padding: 1px;
overflow: hidden;
}
.bi-loading-status .progress-bar div {}{
background: Highlight;
overflow: hidden;
height: 100%;
filter: Alpha(Opacity=0, FinishOpacity=100, Style=1, StartX=0, StartY=0, FinishX=100, FinishY=0);
}

3.建立测试页面
3.1html代码HTML
HEAD
titleprogressbar/title
meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1"
meta name="CODE_LANGUAGE" Content="C#"
meta name="vs_defaultClientScript" content="JavaScript"
meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5"
/HEAD
body MS_POSITIONING="GridLayout"
form id="Form1" method="post" runat="server"
%=fixedHeader()%
/form
/body
/HTML3.2cs代码
首先usingusing System.Threading;
using System.IO;
using System.Text;然后添加代码
public class progressbar : System.Web.UI.Page
{
Page_Load#region Page_Load
private void Page_Load(object sender, System.EventArgs e)
{
if(!Page.IsPostBack)
{
string strFileName =Server.MapPath("progressbar.htm" );
StreamReader sr = new StreamReader( strFileName, System.Text.Encoding.Default );
string strHtml = sr.ReadToEnd();
Response.Write( strHtml );
sr.Close();
Response.Flush();
Thread thread = new Thread(new ThreadStart(ThreadProc));
thread.Start();
LoadData();//load数据
thread.Join();
}
}
#endregion

fixedHeader#region fixedHeader
protected string fixedHeader()
{
StringBuilder s=new StringBuilder();
s.Append(@"table width='100%' border='1' cellspacing='0' style='MARGIN-TOP:-2px'");
s.Append(@"TR class='fixedHeaderTr' style='BACKGROUND:navy;COLOR:white'");
s.Append(@"TD nowrapHeader A/TD");
s.Append(@"TD nowrapHeader B/TD");
s.Append(@"TD nowrapHeader C/TD");
s.Append(@"/TR");
for(int m=0;m100;m++)
{
s.Append(@"TR");
s.Append(@"TDA").Append(m).Append("/TD");
s.Append(@"TDB").Append(m).Append("/TD");
s.Append(@"TDC").Append(m).Append("/TD");
s.Append(@"/TR");
}
s.Append(@"/table");
return s.ToString();
}
#endregion

ThreadProc#region ThreadProc
private void ThreadProc()
{
string strScript = "scriptsetPgb('pgbMain','{0}');/script";
for ( int i = 0; i = 100; i++ )
{
System.Threading.Thread.Sleep(10);
Response.Write( string.Format( strScript, i));
Response.Flush();
}
}
#endregion

（本文来源于图老师网站，更多请访问http://www.tulaoshi.com/webkaifa/）

LoadData#region LoadData
private void LoadData()
{
for(int m=0;m90000;m++)
{
for(int i=0;i90000;i++)
{

}
}
}
#endregion

（本文来源于图老师网站，更多请访问http://www.tulaoshi.com/webkaifa/）

Web Form Designer generated code#region Web Form Designer generated code
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: This call is required by the ASP.NET Web Form Designer.
//
InitializeComponent();
base.OnInit(e);
}

/**//// summary
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// /summary
private void InitializeComponent()
{
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
}