RE: How to display error msgs in a pop up window

[Frank Zammetti]

One way to do this (the only way I can actually think of) is this... write 
your logon page as you would normally in Struts, i.e., pretend your going to 
display your error message there.  That means re-displaying the user's 
entries, all that.  But, instead of displaying the messages, open a new 
window via JavaScript as a result of the pages' onLoad event, and load into 
that the error messages (either via scripting or calling an Action, which 
means you would have had to persisted the messages somehow on the server and 
referenced them, i.e., maybe set them in session during the failed logon 
Action call and retrieve them for display).

As far as I know, there is no way to send a redirect to the browser telling 
it to open the target in a new window from the server, so any response the 
server sends has to technically go to the same window that started the 
request (unless of course you targeted a new window to begin with, but it 
doesn't sound like you can do that).  So, your left with "faking it", that 
is, you will in fact re-draw the page, but it will look like a new window is 
opening with the error messages.  If the appearance is all you want, this 
should do, but if there's some reason you can't overwrite your logon page 
(like maybe some stored data in script elements that can't be overwritten?) 
then I think your out of luck.

Frank

From: praveen kulkarni <[EMAIL PROTECTED]>
Reply-To: "Struts Users Mailing List" <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: How to display error msgs in a pop up window
Date: Wed, 2 Jun 2004 16:51:21 +0100 (BST)
Hi all,
Sub: How can i get error messages in a pop up window by using STRUTS
I am using Struts and i want to handle all validation error messages in a 
new popup window.

Consider Login form with loginID and password as form fields. I want to 
check mandatory status at the server side, for this i will put validate 
method in the FormBean. FormBean will create Error Object sends back to 
Login Page. I've to handle this error object in a new popup window instead 
of displaying in the Login page.

bye
PAK
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