模板
教程
环境
性能
功能
管理
一个ASP.NET的进度条
发表于：2007-06-30来源：作者：点击数：
标签：
1.创建进度条： DIV id=Lay1 style=Z-INDEX: 1; LEFT: 1%; VISIBILITY: hidden; WIDTH: 99%; CURSOR: crosshair; POSITION: absolute; TOP: 32px; HEIGHT: 95%; BACKGROUND-COLOR: #ffffffFONT face=宋体/FONTFONT face=宋体/FONTFONT face=宋体/FONTFONT fa
1.创建进度条：
<DIV id="Lay1" style="Z-INDEX: 1; LEFT: 1%; VISIBILITY: hidden; WIDTH: 99%; CURSOR: crosshair; POSITION: absolute; TOP: 32px; HEIGHT: 95%; BACKGROUND-COLOR: #ffffff"><FONT face="宋体"></FONT><FONT face="宋体"></FONT><FONT face="宋体"></FONT><FONT face="宋体"></FONT><br>
<b><font color="#800080" size="2"> 正在检索数据，请稍候...</font></b>
<table align="center">
<tr>
<td>
<div style="BORDER-RIGHT: black 1px solid; PADDING-RIGHT: 2px; BORDER-TOP: black 1px solid; PADDING-LEFT: 2px; FONT-SIZE: 8pt; PADDING-BOTTOM: 2px; BORDER-LEFT: black 1px solid; PADDING-TOP: 2px; BORDER-BOTTOM: black 1px solid"><span id="progress1"> </span>
<span id="progress2"> </span> <span id="progress3"> </span> <span id="progress4">
</span> <span id="progress5"> </span> <span id="progress6"> </span>
<span id="progress7"> </span> <span id="progress8"> </span> <span id="progress9">
</span> <span id="progress10"> </span> <span id="progress11"> </span>
<span id="progress12"> </span> <span id="progress13"> </span><span id="progress14"> </span><span id="progress15"> </span>
</div>
</td>
</tr>
</table>
<script language="javascript">
var progressEnd = 15; // set to number of progress <span>@#s.
var progressColor = @#blue@#; // set to progress bar color
var progressInterval = 300; // set to time between updates (milli-seconds)
var progressAt = progressEnd;
var progressTimer;
function progress_clear() {
for (var i = 1; i <= progressEnd; i++) document.getElementById(@#progress@#+i).style.backgroundColor = @#transparent@#;
progressAt = 0;
}
function progress_update() {
progressAt++;
if (progressAt > progressEnd) progress_clear();
else document.getElementById(@#progress@#+progressAt).style.backgroundColor = progressColor;
progressTimer = setTimeout(@#progress_update()@#,progressInterval);
}
function progress_stop() {
clearTimeout(progressTimer);
progress_clear();
}
//progress_update(); // start progress bar
</script>
</DIV>
2.设置查询按钮属性
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
@#在此处放置初始化页的用户代码
If Not IsPostBack The
but_find.Attributes.Add("onClick", "Lay1.style.visibility=@#@#;progress_update();")
End If
End Sub
3.注册javascript脚本
Public Sub scriptjdt(ByVal objPage As System.Web.UI.Page, ByVal strValue As String)
Dim jb As String
jb = "<script language=@#JavaScript@#>" + strValue + "</script>"
objPage.RegisterStartupScript("jdt_ok", jb)
End Sub
4.在查询按钮单击事件中调用。
Private Sub but_find_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles but_find.Click
@#查询数据代码
@#----------------
Me.scriptjdt(Me, "Lay1.style.visibility=@#hidden@#;progress_stop();") @#关闭进度条代码
End Sub
