window.open（）打开两个窗口 [英] window.open() opens two windows
问题描述
问题：
使用命名窗口作为目标，无论如何都会打开一个新窗口。另外，两个
窗口都有相同的名称。仅在某些机器上发生这种情况
env：
XP sp2
ie6.0.2900.2180
+ sp2
复制这两个文件，test1.html
< HTML>< BODY>
< script>
function openit（）{
var addlookup = open（''about ：blank''， ''addlookup''）;
document.f1.target =" addlookup";
document.f1.submit（）;
}
< / script>
< form name = f1 action =" test2.html" >
< input type = button onclick =" openit（）;" value =" open">
< / form>
< / BODY>< / HTML>
....和test2.html
< HTML>< BODY>
< script>
函数showname（）{
alert（self.name）;
}
< / script>
< / HEAD>
< BODY>
点击这是查看窗口名称< input type = button onclick =" showname（ ）;">
< / BODY>
< / HTML>
------ -
如果你使用
var addlookup = open（''test2.html''，''addlookup''）;
那么你可以看到两次使用相同的名字。
我们在这里的几台机器上遇到了这个问题（大约20个中的3个），所有这些都是/>
似乎有相同的资源管理器设置。
这里的一些帖子似乎有同样的问题，但没有后续工作
帮助。
希望有人加入n帮助。
迈克
MPH说：
问题：
使用命名窗口作为目标，无论如何都会打开一个新窗口。此外，两个窗口都具有相同的名称。这种情况发生在某些机器上只有
< script>
function openit（）{
var addlookup = open（''about ：blank''，''addlookup ''）;
document.f1.target =" addlookup";
document.f1.submit（）;
}
< / script>
open（）方法立即返回，无需等待
窗口系统实际创建窗口。如果在某些机器上发生这种情况需要花费更长的时间，那么当您提交表单时，新窗口将不会存在
。由于
没有窗口存在名称addlookup，因此创建了一个新窗口。
setTimeout（" document.f1.submit（）" ;，1000）;
Lee于2005年4月28日在comp.lang.javascript中写道 ：MPH说：
问题：使用命名窗口作为目标，无论如何都会打开一个新窗口。此外，两个窗口都具有相同的名称。这只发生在某些机器上
< script>
function openit（）{
var addlookup = open（''about ：blank''，''addlookup''）;
document.f1.target =" addlookup";
document.f1.submit（）;
}
< / script>
open（）方法立即返回，无需等待窗口系统实际创建窗口。如果这种情况发生在某些机器上需要更长时间，那么当您提交表单时，新窗口仍然不存在。由于名称addlookup不存在窗口，因此创建了一个新窗口。
setTimeout（" document.f1.submit（）"，1000）;
同样的效果可以通过以下方式实现：
< script>
function openit（） {
document.f1.target =" _blank" ;;
document.f1.submit（）;
}
< / script>
-
Evertjan。
荷兰。
（全部替换在我的电子邮件地址中穿过圆点）
你好李，
感谢您的快速回复，但是用'setTimeout（" document.f1.submit（）"，1000替换
" document.f1.submit（）;" ）;"，
仍会显示两个窗口。现在发生的是指定的
窗口立即出现，没有内容和完整的浏览器窗口
出现在第二个指定时间后的内容
参数settimeout（）。
谢谢
MPH
** *通过开发人员指南 http://www.developersdex.com 发送***
Problem:
using a named window as target, a new window is opened anyway. Also, both
windows have the same name. This happens on SOME machines only
env:
XP sp2
ie6.0.2900.2180
+ sp2
Replicate with these two files, "test1.html"
<HTML><BODY>
<script>
function openit(){
var addlookup=open(''about:blank'',''addlookup'');
document.f1.target="addlookup";
document.f1.submit();
}
</script>
<form name=f1 action="test2.html" >
<input type=button onclick="openit();" value="open">
</form>
</BODY></HTML>
.... and "test2.html"
<HTML><BODY>
<script>
function showname(){
alert(self.name);
}
</script>
</HEAD>
<BODY>
Click this is to see window name <input type=button onclick="showname();">
</BODY>
</HTML>
--------
if you use
var addlookup=open(''test2.html'',''addlookup'');
then you can see the same name being used twice.
We''ve had this problem on a few machines here (about 3 out of 20), which all
appear to have identical explorer settings.
A few posts here seem to have the same problem but no follow ups have
helped.
Hope someone can help.
Mike
MPH said:
Problem:
using a named window as target, a new window is opened anyway. Also, both
windows have the same name. This happens on SOME machines only <script>
function openit(){
var addlookup=open(''about:blank'',''addlookup'');
document.f1.target="addlookup";
document.f1.submit();
}
</script>
The open() method returns immediately, without waiting for the
windowing system to actually create the window. If that happens
to take a little longer on some machines, the new window won''t
exist yet when you submit the form. Since no window exists by
the name "addlookup", a new one is created.
setTimeout("document.f1.submit()",1000);
Lee wrote on 28 apr 2005 in comp.lang.javascript:MPH said:
Problem:
using a named window as target, a new window is opened anyway. Also, both
windows have the same name. This happens on SOME machines only
<script>
function openit(){
var addlookup=open(''about:blank'',''addlookup'');
document.f1.target="addlookup";
document.f1.submit();
}
</script>
The open() method returns immediately, without waiting for the
windowing system to actually create the window. If that happens
to take a little longer on some machines, the new window won''t
exist yet when you submit the form. Since no window exists by
the name "addlookup", a new one is created.
setTimeout("document.f1.submit()",1000);
The same effect can be reached by just:
<script>
function openit(){
document.f1.target="_blank";
document.f1.submit();
}
</script>
--
Evertjan.
The Netherlands.
(Replace all crosses with dots in my emailaddress)
Hi Lee,
Thanks for your quick response, however on replacing
"document.f1.submit();"with "setTimeout("document.f1.submit()",1000);",
two windows are still displayed. What happens now is that the specified
window appears straight away with no content and a full browser window
appears with the content after the time specified in the second
parameter of settimeout().
Thanks
MPH
*** Sent via Developersdex http://www.developersdex.com ***
这篇关于window.open（）打开两个窗口的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
