Re: Can a collection property have its changes saved back to the ActionForm?
Apologies all, I am editing my solution below for clarity and accuracy:
- Original Message
From: Andrew Sharpe
To: Struts Users Mailing List
Sent: Mon, March 22, 2010 8:44:42 AM
Subject: Re: Can a collection property have its changes saved back to the
ActionForm?
Thanks Adam. I ended up using your solution. I'm not thrilled about the user
seeing the listbox items get auto selected after they submit the form, but the
code is certainly cleaner than adding and removing hidden controls. For the
archives, here's what I went with:
JSP
function setStatus() {
var emailSelect = document.getElementById("emailSelect");
emailSelect.multiple = true;
emailSelect.focus(); // This is needed to force IE to execute the line
above.
for (var i = 0; i < emailSelect.length; i++) {
emailSelect.options[i].selected = true;
}
}
ACTIONFORM
private String[] addresses;
public String[] getAddresses() {
return addresses;
}
public void setAddresses(String[] value) {
addresses = value;
}
private final List oldAddresses = new ArrayList();
public List getOldAddresses() {
return oldAddresses;
}
Thanks again,
Andrew
- Original Message
From: adam pinder
To: user@struts.apache.org
Sent: Thu, March 18, 2010 6:11:27 AM
Subject: RE: Can a collection property have its changes saved back to the
ActionForm?
you want to save the options in the select not a selected option...
if you make the select a multiple select and in javascript you select all
options are all the option values sent to the server against the same
parameter name (turn on parameter interceptor logging to check)...
if so, add a set method in your action with the same name as the select element
that accepts a string array, like
setNewRole(String[] newRoles)
inside this method you can initialise your proper ArrayList and add the
elements from the string array into it.
you still need the javascript to select options but at least you're not
creating new elements.
i haven't checked if multiple selects sends its parameters in this way but it
works when multiple checkbox elements all have the same name and are sent as
name/values pair.
ps. if i've misunderstood and you just want to save multiple selected options,
then you can omit the javascript part which would be better.
> Date: Wed, 17 Mar 2010 17:23:45 -0700
> From: andrewrwsha...@yahoo.com
> Subject: Re: Can a collection property have its changes saved back to the
> ActionForm?
> To: user@struts.apache.org
>
> For the archives, the solution I'm going with is to have the javascript add
> elements to the document corresponding to the new values in the select. The
> names of the hidden elements will be indexed. Something like this:
>
> Action Form:
>
> public List getOldList()
>
> public String getSelectedValue()
>
> public void setNewList(int index, String value)
>
> JSP:
>
>
>
>
>
>
>
>
>
> Then the setNewList method gets called on the form with the new values from
> the select box.
>
> If anyone has any better ideas I'm open to hearing them, but this seems to do
> the trick.
>
> Andrew
>
>
>
> - Original Message
> From: Andrew Sharpe
> To: user@struts.apache.org
> Sent: Mon, March 15, 2010 6:03:30 PM
> Subject: Can a collection property have its changes saved back to the
> ActionForm?
>
> Hello all,
>
> I have a List collection that I am displaying in an
> and it is working great. The problem is that my
> jsp page makes changes to that control via
> javascript (adds new options, removes, etc). I would like these
> changes to be saved back to the ActionForm, preferrably to the same
> collection where it got its data from.
>
> Struts does not seem to do it by default, that is, the
> tag seems to make use of the ActionForm's get
> property, but not its set. If it is supposed to behave this way please
> let me know and I will reexamine my syntax. Otherwise can someone tell
> me the easiest way to do this? I am using Struts 1.3.8 and
> unfortunately cannot upgrade to Struts 2.
>
> Many thanks in advance,
>
> Andrew
>
>
>
> __
> The new Internet Explorer® 8 - Faster, safer, easier. Optimized for Yahoo!
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>
> -
> To unsubscribe, e-mail: user-unsubscr...@struts.apache.org
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>
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&g
Re: Can a collection property have its changes saved back to the ActionForm?
Thanks Adam. I ended up using your solution. I'm not thrilled about the user
seeing the listbox items get auto selected after they submit the form, but the
code is certainly cleaner than adding and removing hidden controls. For the
archives, here's what I went with:
JSP
function setStatus() {
var emailSelect = document.getElementById("emailSelect");
emailSelect.multiple = true;
emailSelect.focus(); // This is needed to force IE to execute the line
above.
for (var i = 0; i < emailSelect.length; i++) {
emailSelect.options[i].selected = true;
}
}
ACTIONFORM
private String[] addresses;
public String[] getAddresses() {
return addresses;
}
public void setAddresses(String[] value) {
addresses = value;
}
private final List oldAddresses = new ArrayList();
public List getOldAddresses() {
return oldAddresses;
}
Thanks again,
Andrew
- Original Message
From: adam pinder
To: user@struts.apache.org
Sent: Thu, March 18, 2010 6:11:27 AM
Subject: RE: Can a collection property have its changes saved back to the
ActionForm?
you want to save the options in the select not a selected option...
if you make the select a multiple select and in javascript you select all
options are all the option values sent to the server against the same
parameter name (turn on parameter interceptor logging to check)...
if so, add a set method in your action with the same name as the select element
that accepts a string array, like
setNewRole(String[] newRoles)
inside this method you can initialise your proper ArrayList and add the
elements from the string array into it.
you still need the javascript to select options but at least you're not
creating new elements.
i haven't checked if multiple selects sends its parameters in this way but it
works when multiple checkbox elements all have the same name and are sent as
name/values pair.
ps. if i've misunderstood and you just want to save multiple selected options,
then you can omit the javascript part which would be better.
> Date: Wed, 17 Mar 2010 17:23:45 -0700
> From: andrewrwsha...@yahoo.com
> Subject: Re: Can a collection property have its changes saved back to the
> ActionForm?
> To: user@struts.apache.org
>
> For the archives, the solution I'm going with is to have the javascript add
> elements to the document corresponding to the new values in the select. The
> names of the hidden elements will be indexed. Something like this:
>
> Action Form:
>
> public List getOldList()
>
> public String getSelectedValue()
>
> public void setNewList(int index, String value)
>
> JSP:
>
>
>
>
>
>
>
>
>
> Then the setNewList method gets called on the form with the new values from
> the select box.
>
> If anyone has any better ideas I'm open to hearing them, but this seems to do
> the trick.
>
> Andrew
>
>
>
> - Original Message
> From: Andrew Sharpe
> To: user@struts.apache.org
> Sent: Mon, March 15, 2010 6:03:30 PM
> Subject: Can a collection property have its changes saved back to the
> ActionForm?
>
> Hello all,
>
> I have a List collection that I am displaying in an
> and it is working great. The problem is that my
> jsp page makes changes to that control via
> javascript (adds new options, removes, etc). I would like these
> changes to be saved back to the ActionForm, preferrably to the same
> collection where it got its data from.
>
> Struts does not seem to do it by default, that is, the
> tag seems to make use of the ActionForm's get
> property, but not its set. If it is supposed to behave this way please
> let me know and I will reexamine my syntax. Otherwise can someone tell
> me the easiest way to do this? I am using Struts 1.3.8 and
> unfortunately cannot upgrade to Struts 2.
>
> Many thanks in advance,
>
> Andrew
>
>
>
> __
> The new Internet Explorer® 8 - Faster, safer, easier. Optimized for Yahoo!
> Get it Now for Free! at http://downloads.yahoo.com/ca/internetexplorer/
>
> -
> To unsubscribe, e-mail: user-unsubscr...@struts.apache.org
> For additional commands, e-mail: user-h...@struts.apache.org
>
>
> __
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>
> http://www.flickr.com/gift/
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>
RE: Can a collection property have its changes saved back to the ActionForm?
you want to save the options in the select not a selected option... if you make the select a multiple select and in javascript you select all options are all the option values sent to the server against the same parameter name (turn on parameter interceptor logging to check)... if so, add a set method in your action with the same name as the select element that accepts a string array, like setNewRole(String[] newRoles) inside this method you can initialise your proper ArrayList and add the elements from the string array into it. you still need the javascript to select options but at least you're not creating new elements. i haven't checked if multiple selects sends its parameters in this way but it works when multiple checkbox elements all have the same name and are sent as name/values pair. ps. if i've misunderstood and you just want to save multiple selected options, then you can omit the javascript part which would be better. > Date: Wed, 17 Mar 2010 17:23:45 -0700 > From: andrewrwsha...@yahoo.com > Subject: Re: Can a collection property have its changes saved back to the > ActionForm? > To: user@struts.apache.org > > For the archives, the solution I'm going with is to have the javascript add > elements to the document corresponding to the new values in the select. The > names of the hidden elements will be indexed. Something like this: > > Action Form: > > public List getOldList() > > public String getSelectedValue() > > public void setNewList(int index, String value) > > JSP: > > > > > > > > > > Then the setNewList method gets called on the form with the new values from > the select box. > > If anyone has any better ideas I'm open to hearing them, but this seems to do > the trick. > > Andrew > > > > - Original Message > From: Andrew Sharpe > To: user@struts.apache.org > Sent: Mon, March 15, 2010 6:03:30 PM > Subject: Can a collection property have its changes saved back to the > ActionForm? > > Hello all, > > I have a List collection that I am displaying in an > and it is working great. The problem is that my > jsp page makes changes to that control via > javascript (adds new options, removes, etc). I would like these > changes to be saved back to the ActionForm, preferrably to the same > collection where it got its data from. > > Struts does not seem to do it by default, that is, the > tag seems to make use of the ActionForm's get > property, but not its set. If it is supposed to behave this way please > let me know and I will reexamine my syntax. Otherwise can someone tell > me the easiest way to do this? I am using Struts 1.3.8 and > unfortunately cannot upgrade to Struts 2. > > Many thanks in advance, > > Andrew > > > > __ > The new Internet Explorer® 8 - Faster, safer, easier. Optimized for Yahoo! > Get it Now for Free! at http://downloads.yahoo.com/ca/internetexplorer/ > > - > To unsubscribe, e-mail: user-unsubscr...@struts.apache.org > For additional commands, e-mail: user-h...@struts.apache.org > > > __ > Looking for the perfect gift? Give the gift of Flickr! > > http://www.flickr.com/gift/ > > - > To unsubscribe, e-mail: user-unsubscr...@struts.apache.org > For additional commands, e-mail: user-h...@struts.apache.org > _ Got a cool Hotmail story? Tell us now http://clk.atdmt.com/UKM/go/195013117/direct/01/ - To unsubscribe, e-mail: user-unsubscr...@struts.apache.org For additional commands, e-mail: user-h...@struts.apache.org
Re: Can a collection property have its changes saved back to the ActionForm?
For the archives, the solution I'm going with is to have the javascript add
elements to the document corresponding to the new values in the
select. The names of the hidden elements will be indexed. Something like this:
Action Form:
public List getOldList()
public String getSelectedValue()
public void setNewList(int index, String value)
JSP:
function saveSelect() {
var selectControl = document.getElementById('myId);
for (var i = 0; i < select.length; i++) {
var hid = document.createElement("input");
hid.type = "hidden";
hid.name = "newList[" + i + "]";
hid.value = selectControl.options[i].value;
document.forms[0].appendChild(hid);
}
}
Then the setNewList method gets called on the form with the new values from the
select box.
If anyone has any better ideas I'm open to hearing them, but this seems to do
the trick.
Andrew
- Original Message
From: Andrew Sharpe
To: user@struts.apache.org
Sent: Mon, March 15, 2010 6:03:30 PM
Subject: Can a collection property have its changes saved back to the
ActionForm?
Hello all,
I have a List collection that I am displaying in an
and it is working great. The problem is that my
jsp page makes changes to that control via
javascript (adds new options, removes, etc). I would like these
changes to be saved back to the ActionForm, preferrably to the same
collection where it got its data from.
Struts does not seem to do it by default, that is, the
tag seems to make use of the ActionForm's get
property, but not its set. If it is supposed to behave this way please
let me know and I will reexamine my syntax. Otherwise can someone tell
me the easiest way to do this? I am using Struts 1.3.8 and
unfortunately cannot upgrade to Struts 2.
Many thanks in advance,
Andrew
__
The new Internet Explorer® 8 - Faster, safer, easier. Optimized for Yahoo!
Get it Now for Free! at http://downloads.yahoo.com/ca/internetexplorer/
-
To unsubscribe, e-mail: user-unsubscr...@struts.apache.org
For additional commands, e-mail: user-h...@struts.apache.org
__
Looking for the perfect gift? Give the gift of Flickr!
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