<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<%@ Register src="ProgressBar.ascx" tagname="ProgressBar" tagprefix="uc1" %>
<!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">
<head runat="server">
<title></title>
<script type="text/javascript">
count = 0;
function set(val) {
var pb = document.getElementById('progressBar');
var num = document.getElementById('num');
pb.style.width = val + '%';
num.innerHTML = val + '%';
}
</script>
</head>
<body>
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<div>
<table>
<tr>
<td>
<div style="height:20px;width:100px;border:1px solid red;">
<div id="progressBar" style="height:20px;width:0%;background-color:Blue;float:left;"></div>
</div>
</td>
<td>
<div id="num">0%</div>
</td>
</tr>
</table>
<div>
<asp:Button ID="Button1" runat="server" Text="Button" οnclick="Button1_Click" />
</div>
</div>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Button1" />
</Triggers>
</asp:UpdatePanel>
<!--Timer-->
<asp:UpdatePanel ID="UpdatePanel2" runat="server">
<ContentTemplate>
<asp:Timer ID="timer1" runat="server" ontick="timer1_Tick" Interval="100">
</asp:Timer>
</ContentTemplate>
</asp:UpdatePanel>
</form>
</body>
</html>
後臺代碼：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e) {
System.Threading.Thread thread = new System.Threading.Thread(new System.Threading.ThreadStart(UpdateProgressBar));
thread.Start();
timer1.Enabled = true;
}
private void UpdateProgressBar() {
Session["progressbar"] = 0;
for (int i = 1; i <= 100; i++) {
System.Threading.Thread.Sleep(100);
Session["progressbar"] = i;
}
}
protected void timer1_Tick(object sender, EventArgs e) {
ScriptManager.RegisterStartupScript(this,this.GetType(),"key"+Session["progressbar"],"set("+Session["progressbar"]+")",true);
if (Session["progressbar"].ToString() == "100") {
timer1.Enabled = false;
}
}
}