(转)页面加载时间进度条
一、前台代码
<DIV id="Lay1" style="Z-INDEX: 101; LEFT: 0.92%; 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><FONT face="宋体"></FONT><FONT face="宋体"></FONT><FONT face="宋体"></FONT><FONT face="宋体"></FONT><FONT face="宋体"></FONT><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; 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>
<asp:Button id="but_find" style="Z-INDEX: 102; LEFT: 160px; POSITION: absolute; TOP: 0px" runat="server"
Text="查询" Width="120px"></asp:Button>
<b><font color="#800080" size="2"> & 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"> </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>
<asp:Button id="but_find" style="Z-INDEX: 102; LEFT: 160px; POSITION: absolute; TOP: 0px" runat="server"
Text="查询" Width="120px"></asp:Button>
二、.cs代码:
private void Page_Load(object sender, System.EventArgs e)
{
if(!IsPostBack)
{
but_find.Attributes.Add("onClick", "Lay1.style.visibility='';progress_update();");
}
}
public void scriptjdt(System.Web.UI.Page objPage , string strValue )
{
string jb ;
jb = "<script language='JavaScript'>" + strValue + "</script>";
objPage.RegisterStartupScript("jdt_ok", jb);
}
#region Web 窗体设计器生成的代码
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
//
InitializeComponent();
base.OnInit(e);
}
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.but_find.Click += new System.EventHandler(this.but_find_Click);
this.Load += new System.EventHandler(this.Page_Load); }
#endregion
private void but_find_Click(object sender, System.EventArgs e)
{
this.scriptjdt(this, "Lay1.style.visibility='hidden';progress_stop();");
}
{
if(!IsPostBack)
{
but_find.Attributes.Add("onClick", "Lay1.style.visibility='';progress_update();");
}
}
public void scriptjdt(System.Web.UI.Page objPage , string strValue )
{
string jb ;
jb = "<script language='JavaScript'>" + strValue + "</script>";
objPage.RegisterStartupScript("jdt_ok", jb);
}
#region Web 窗体设计器生成的代码
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
//
InitializeComponent();
base.OnInit(e);
}
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.but_find.Click += new System.EventHandler(this.but_find_Click);
this.Load += new System.EventHandler(this.Page_Load); }
#endregion
private void but_find_Click(object sender, System.EventArgs e)
{
this.scriptjdt(this, "Lay1.style.visibility='hidden';progress_stop();");
}