那为什么我页面中的remain_time的Text框中的数字总是没有变化呢?
我aspx页面的代码如下:(是还缺什么?)<SCRIPT language="javascript">
function time_step()
{
with(document.formsubmit.remain_time)
{
if (document.formsubmit.refer_flag.value!="Y")
value=(value!=0)?value-1:0;
}
window.setTimeout("time_step()",1000*60);
}
time_step();
</SCRIPT>
</HEAD>
<body MS_POSITIONING="GridLayout">
<form id="WebForm1" method="post" runat="server">
<INPUT type="hidden" name="timeout_flag" ID="Hidden1">
<INPUT type="hidden" name="refer_flag" ID="Hidden2">
<input readOnly size="3" value="60" name="remain_time" ID="Text1">
</form>
</body>
</HTML>
我aspx页面的代码如下:(是还缺什么?)<SCRIPT language="javascript">
function time_step()
{
with(document.formsubmit.remain_time)
{
if (document.formsubmit.refer_flag.value!="Y")
value=(value!=0)?value-1:0;
}
window.setTimeout("time_step()",1000*60);
}
time_step();
</SCRIPT>
</HEAD>
<body MS_POSITIONING="GridLayout">
<form id="WebForm1" method="post" runat="server">
<INPUT type="hidden" name="timeout_flag" ID="Hidden1">
<INPUT type="hidden" name="refer_flag" ID="Hidden2">
<input readOnly size="3" value="60" name="remain_time" ID="Text1">
</form>
</body>
</HTML>
Form名字不一样的
function time_step()
{
with(document.formsubmit.remain_time)
{
if (document.formsubmit.refer_flag.value!="Y")
value=(value!=0)?value-1:0;
}
window.setTimeout("time_step()",1000*60);
}
time_step();
</SCRIPT>
</HEAD>
<body MS_POSITIONING="GridLayout">
<form id="formsubmit" method="post" runat="server">
<INPUT type="hidden" name="timeout_flag" ID="Hidden1">
<INPUT type="hidden" name="refer_flag" ID="Hidden2">
<input readOnly size="3" value="60" name="remain_time" ID="Text1">
</form>
</body>
</HTML>
<body MS_POSITIONING="GridLayout" onload="time_step()">
<HEAD>
</HEAD>
<body MS_POSITIONING="GridLayout">
<form id="formsubmit" method="post" runat="server">
<INPUT type="hidden" name="timeout_flag" ID="Hidden1">
<INPUT type="hidden" name="refer_flag" ID="Hidden2">
<INPUT readOnly size="3" value="60" name="remain_time" ID="remain_time">
</form>
<SCRIPT language="javascript">
function time_step()
{
with(document.formsubmit.remain_time)
{
if (document.formsubmit.refer_flag.value!="Y")
value=(value!=0)?value-1:0;
}
window.setTimeout("time_step()",1000);
}
time_step();
</SCRIPT>
</body>
</HTML>
我想定时不刷新页面实现页面更新,把后台xml文件的当前内容显示出来(也就是想实现一个简单聊天室的功能,聊天的内容保存到xml文件中)
下面的函数已经可以实现不刷新页面的页面更新,但是如何显示后台xml文件的内容呢?<SCRIPT language="javascript">
function time_step()
{
with(document.formsubmit.remain_time)
{
if (document.formsubmit.refer_flag.value!="Y")
value=(value!=0)?value-1:0;
//我想在这里添加读取xml文件的内容并显示出来
}
window.setTimeout("time_step()",1000*60);
}
time_step();</SCRIPT>
<body MS_POSITIONING="GridLayout" onload="time_step()">才可以触发页面定时无刷新地更新
我试过了
放到后面也可以运行^_^但是为什么放在前面就运行不了呢?
如果说单是放到前面(HEAD里面),页面是不会触发执行的;
在body里面加onload="time_step()",就触发脚本先于控件发到客户端而执行;
单放到body末尾,页面会自动执行那是不是说,只要放到body里面,页面就会自动执行,并自循环了?
function time_step()
{
with(document.formsubmit.remain_time)
{
if (document.formsubmit.refer_flag.value!="Y")
value=(value!=0)?value-1:0;
//我想在这里添加读取xml文件的内容并显示出来
}
window.setTimeout("time_step()",1000*60);///这一句便是设置定时器,每隔1000*60时间调用time_step()一次
}
time_step();////////////////////这一句便是第一次调用了执行上面的window.setTimeout()</SCRIPT>