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'**************************************
' Name: A better response.redirect
' Description:The response.redirect meth
' od is great for moving a user from one p
' age to another. However, it does have on
' e major limitation--you can only use it
' if absolutely nothing has been written t
' o the page. Sometimes, you actually do w
' ant to write something to the page and t
' hen redirect it, for example when displa
' ying the status of an operation. In this
' case, the following JavaRedirect functio
' n comes in handy. It requires a Java com
' patible browser. (Note:this script has b
' een changed to incorporate Lewis Moten's
' helpful suggestions).
' By: Ian Ippolito (psc)
'
'This code is copyrighted and has ' limited warranties.Please see http://w
' ww.Planet-Source-Code.com/xq/ASP/txtCode
' Id.0/lngWId.4/qx/vb/scripts/ShowCode.htm 'for details. '**************************************
Sub JavaRedirect (strURL)
'Response.Write "redirect to:" & strURL
%>
<SCRIPT language="JavaScript">
<!--
window.location.href =
'<%=URL%>';
//-->
</SCRIPT>
<%
End Sub
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Other 34 submission(s) by this author
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| Your Vote! |
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| Other User Comments |
4/21/2000 8:19:55 AM:cpsarros
Excellent simplicity
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6/3/2000 11:55:28 AM:Tony
Err... It would be much easier to set
the following line
server-side:<R0Response.Buffer = True
êdd this to the top of your ASP page
and you can redirect AFTER the client
headers are written. There is no need
to rely on a client-side script.
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6/3/2000 12:10:37 PM:Tony
Response.Buffer = True
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6/5/2000 12:12:34 PM:Ian Ippolito
Tony,
I appreciate the feedback
but doing response.buffer = true
doesn't quite do the same thing. If
you use that method, the redirect will
succeed, but you won't actually see the
text that was output to the screen
before hand. That won't work for the
'status' situation described.
Ian
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6/17/2000 7:52:32 AM:serkan
this is so cool. thnx.
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7/21/2000 12:32:00 PM:Lewis Moten
If you want to let users see content
before redirecting them, you can always
use META tags to refresh the page to
another URL after a specified amount of
time. More browsers would be
compatable with this method. Your code
doesn't even use timers to give the
users time to see what you have
written.
Also, your javascript is in
a vbScript format.
1. javascript is
case sensitive
2. javascript uses {}
to define content within if
comparisons.
this will definately
crash your browsers. here is the real
deal.
<SCRIPT
language="JavaScript">
<!--
window.loc
ation.href =
'<%=URL%>';
//-->
</SCRIPT>
There
is no need to test for netscape
browsers by doing it this way.
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7/21/2000 4:45:28 PM:Ian Ippolito
Lewis,
Thanks for the feedback, but
the META tag method only works if you
know in advance how long the operation
is going to take, and alot of times you
don't. For example on Planet Source
Code, I use the above script when an
author submits code so I can display a
status. I can't predict in advance how
long the upload will take, because each
upoad is a different size and each user
has a different speed
connection.
Regarding {} to wrap
comparisons--I've never read any
Javascript book describing this as a
legal way to do
comparisons.
However, I do like your
final one line solution. I don't know
why I originally did the trap for
Netscape that way (this is kind of old
code...)
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7/22/2000 4:36:34 PM:Lewis Moten
Cool. Another approach would be to
have a function called after the page
completly loads <BODY
onLoad="nextPage()">. then the
function would call a timer to change
the location after the user has some
time to read the page. There are many
different approaches to this situation.
I was just unaware of the specific
requirements. I usually use the {} tags
just about everywhere so that i can
stay away from any possible errors that
may arise in different versions of
javaScript. thanks for the reply.
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10/3/2000 1:13:25 PM:Merlyn
You can use the Response.Redirect even
if you have written to the page by
using Response.Buffer = True in this
case all data to the page is buffered
until the page is processed or you
force the contents of the buffer to the
page.
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10/7/2000 12:58:20 PM:Ian Ippolito
Merlyn,
Thanks for the
feedback...but this is the same thing
Tony said above. See the response to
his message...
Ian
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10/19/2001 4:30:07 PM:Mike Wees
Ian,
I have a question related to
this, I couldn't find it answered
anywhere else. I'm trying to program a
GoBack routine. I want to emulate the
user pressing the Back button on the
browser so that all the form values are
retained. Any idea on the code for
this? Thanks in advance.
MW
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11/16/2001 11:18:38 AM:John Tolar
Actully, the last question had nothing
to do with the topic or code. But, try
history.Back();
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2/18/2002 2:37:29 PM:Imvain
For comparison to the Javascript
solution.
Im kind partial to the
location.replace(); function.
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2/19/2002 11:29:46 AM:A1 Programmer
If the user Presses the [ Back ] Button
on the browser, the form values will be
Retained, but anyway...
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2/19/2002 11:30:55 AM:a1 programmer
<kbd>
<a
href="Javascript:history.back()">Back</a
>
or
<a
href="javascript:history.go(-1)">Back</a
>
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3/4/2002 11:20:03 PM:Sam Moses
good stuff. This approach never
occurred to me. Thanks for the insight.
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5/16/2002 11:42:44 AM:xmetrix@aol.com
response.buffer=true
response.flush
re
sponse.redirect(
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5/16/2002 12:36:13 PM:Ian Ippolito (psc)
Thanks xmetrix, but like the others, it
still doesn't help with the situation
described above "Sometimes, you
actually do want to write something to
the page and then redirect it". The
code you put up would never display
anything.
Ian
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