在ASP.NET中显示进度条
- 作者:zhaozj
- 发表时间:2020-12-23 10:36
- 来源:未知
对于加载时间比较长的ASP.NET页面,我们可以在客户端浏览器中显示进度条来显示页面正在装载。下面就是具体的实现过程:
新建项目,名字为WebPortal,在项目类型中选择Visual C#项目或者Visual Basic项目都可; 在模板类型中选择ASP.NET Web应用程序; 位置里输入:http://localhost/WebPortal; 添加新项:名字为ShowProgress的Web窗体。 在您的Web窗体ShowProgress.aspx上添加任何其他的Web服务器控件。 在ShowProgress.aspx上单击右键,点“查看代码”,在最上面输入:Visual C# .NET代码 <FONT color=#006400>using System.Threading; </FONT> Visual Basic .NET代码 <FONT color=#006400>Imports System.Threading </FONT> 在Page_Load事件里输入: Visual C# .NET代码 <FONT color=#006400>Response.Write("<div id='mydiv' >"); Response.Write("_"); Response.Write("</div>"); Response.Write("&lt;script&gt;mydiv.innerText = '';&lt;/script&gt;"); Response.Write("&lt;script language=javascript&gt;;"); Response.Write("var dots = 0;var dotmax = 10;function ShowWait()"); Response.Write("{var output; output = '正在装载页面';dots++;if(dots>=dotmax)dots=1;"); Response.Write("for(var x = 0;x < dots;x++){output += '&#183;';}mydiv.innerText = output;}"); Response.Write("function StartShowWait(){mydiv.style.visibility = 'visible'; "); Response.Write("window.setInterval('ShowWait()',1000);}"); Response.Write("function HideWait(){mydiv.style.visibility = 'hidden';"); Response.Write("window.clearInterval();}"); Response.Write("StartShowWait();&lt;/script&gt;"); Response.Flush(); Thread.Sleep(10000); </FONT> Visual Basic .NET代码 <FONT color=#006400>Response.Write("<div id='mydiv' >") Response.Write("_") Response.Write("</div>") Response.Write("&lt;script&gt;mydiv.innerText = '';&lt;/script&gt;") Response.Write("&lt;script language=javascript&gt;;") Response.Write("var dots = 0;var dotmax = 10;function ShowWait()") Response.Write("{var output; output = '正在装载页面';dots++;if(dots>=dotmax)dots=1;") Response.Write("for(var x = 0;x < dots;x++){output += '&#183;';}mydiv.innerText = output;}") Response.Write("function StartShowWait(){mydiv.style.visibility = 'visible'; ") Response.Write("window.setInterval('ShowWait()',1000);}") Response.Write("function HideWait(){mydiv.style.visibility='hidden';") Response.Write("window.clearInterval();}") Response.Write("StartShowWait();&lt;/script&gt;") Response.Flush() Thread.Sleep(10000) </FONT>