VB.NET进度条的方法代码

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">nbsp;nbsp;nbsp;nbsp;nbsp;nbsp; nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp;nbsp; nbsp;nbsp;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">nbsp;/span>
span id="progress2">nbsp;/span> span id="progress3">nbsp;/span> span id="progress4">
nbsp;/span> span id="progress5">nbsp;/span> span id="progress6">nbsp;/span>
span id="progress7">nbsp;/span> span id="progress8">nbsp;/span> span id="progress9">
nbsp;/span> span id="progress10">nbsp;/span> span id="progress11">nbsp;/span>
span id="progress12">nbsp;/span> span id="progress13">nbsp;/span>span id="progress14">nbsp;/span>span id="progress15">nbsp;/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>

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

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

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