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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>
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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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>
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
__
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Re: Cannot find bean: sendJsp in any scope
I found a full example for you here:
http://www.java2s.com/Code/Java/J2EE/StrutsFrameworkASampleStrutsApplication.htm
You'll notice that the name property of the logic:iterate tag is set to the
form name as used in struts-config (in your case, BookForm).
Assuming data.jsp forwards to BookAction, you should not need to put the book
list on the request as you are doing in the execute method of the BookAction.
Again I suggest you try to get a simple String property on the action form to
display in your browser and then work your way up to the collection.
Good luck!
Andrew
- Original Message
From: tesla
To: user@struts.apache.org
Sent: Wed, March 17, 2010 11:10:15 AM
Subject: Re: Cannot find bean: sendJsp in any scope
I already had public getName() method.i wrote all getters and setters to my
application just didn't post them to the forum.i created a new arraylist and
added String property but cant show them always the same error.I'm losing my
mind i have a problem with listing array elements.I really be thankful to
you really send me a working example.i'm waiting for your reply thanks again
Andrew Sharpe-2 wrote:
>
> Along with the change I suggested, you also need to add a public getName()
> method to your Book object. Try that, and also make sure you can get a
> simple String property to display to ensure you have Struts configured
> properly.
>
> If you still have trouble let me know and I ll come up with a working
> example for you tonight.
>
> On Wed Mar 17th, 2010 6:51 AM ADT tesla wrote:
>
>>
>>thanks for reply but it still doesn't work.I am looking the tutorials on
the
>>google and it must be like this but its not working .I cant understand
why
>>it is?if you have an example with arrays and logic iterate i will be
>>thankful if you share it with me
>>
>>Andrew Sharpe-2 wrote:
>>>
>>> I think you want:
>>>
>>>
>>>
>>>
>>>
>>> See the docs on logic:iterate for more info:
>>> http://struts.apache.org/1.0.2/struts-logic.html#iterate
>>>
>>> If this still doesn't work I would recommend trying to first output a
>>> String property to verify you have everything setup properly.
>>>
>>>
>>>
>>> - Original Message
>>> From: tesla
>>> To: user@struts.apache.org
>>> Sent: Tue, March 16, 2010 10:24:13 AM
>>> Subject: Re: Cannot find bean: "sendJsp" in any scope
>>>
>>>
>>> When i add logic present tag to data.jsp i am not getting an error but
>>> my
>>> page is still empty i think my arraylist is null but why? i'm waiting
>>> your
>>> advices
>>>
>>> tesla wrote:
>>>>
>>>> Hi
>>>> I wanna show my arrayList on the screen by using logic:iterate tag but
>>>> when i run my application i am gettig this error.I'm working on this
>>>> application for two days and still i cant see my arraylist elements on
>>>> the
>>>> browser.
>>>> Thanks in advice.
>>>>
>>>> data.jsp
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> Book.java
>>>>
>>>> public class Book {
>>>>
>>>> private String name;
>>>> private String description;
>>>> private int price;
>>>> private int id;
>>>>
>>>> public Book()
>>>>{
>>>>
>>>>}
>>>> public Book(String name)
>>>> {
>>>> this.name=name;
>>>> }
>>>>
>>>> public ArrayList loadData()
>>>> {
>>>> ArrayList kitapListesi = new ArrayList();
>>>> kitapListesi.add(new Book("calculus1"));
>>>> kitapListesi.add(new Book("calculus2"));
>>>> return kitapListesi;
>>>> }
>>>>
>>>> BookAction.java
>>>>
>>>> public ActionForward execute(ActionMapping mapping, ActionForm form,
>>>> HttpServletRequest request, HttpServletResponse response)
>>>> throws Exception {
>>>>
>>>>
>>>> BookForm bookForm = (BookForm) form;
>>>> Book book = new Book();
>>>> bookForm.setBookList(book.loadData());
>>>>request.setAttribute("sendJsp", bookForm.g
Re: Cannot find bean: sendJsp in any scope
Along with the change I suggested, you also need to add a public getName()
method to your Book object. Try that, and also make sure you can get a simple
String property to display to ensure you have Struts configured properly.
If you still have trouble let me know and I ll come up with a working example
for you tonight.
On Wed Mar 17th, 2010 6:51 AM ADT tesla wrote:
>
>thanks for reply but it still doesn't work.I am looking the tutorials on the
>google and it must be like this but its not working .I cant understand why
>it is?if you have an example with arrays and logic iterate i will be
>thankful if you share it with me
>
>Andrew Sharpe-2 wrote:
>>
>> I think you want:
>>
>>
>>
>>
>>
>> See the docs on logic:iterate for more info:
>> http://struts.apache.org/1.0.2/struts-logic.html#iterate
>>
>> If this still doesn't work I would recommend trying to first output a
>> String property to verify you have everything setup properly.
>>
>>
>>
>> - Original Message
>> From: tesla
>> To: user@struts.apache.org
>> Sent: Tue, March 16, 2010 10:24:13 AM
>> Subject: Re: Cannot find bean: "sendJsp" in any scope
>>
>>
>> When i add logic present tag to data.jsp i am not getting an error but my
>> page is still empty i think my arraylist is null but why? i'm waiting your
>> advices
>>
>> tesla wrote:
>>>
>>> Hi
>>> I wanna show my arrayList on the screen by using logic:iterate tag but
>>> when i run my application i am gettig this error.I'm working on this
>>> application for two days and still i cant see my arraylist elements on
>>> the
>>> browser.
>>> Thanks in advice.
>>>
>>> data.jsp
>>>
>>>
>>>
>>>
>>>
>>> Book.java
>>>
>>> public class Book {
>>>
>>> private String name;
>>> private String description;
>>> private int price;
>>> private int id;
>>>
>>> public Book()
>>>{
>>>
>>>}
>>> public Book(String name)
>>> {
>>> this.name=name;
>>> }
>>>
>>> public ArrayList loadData()
>>> {
>>> ArrayList kitapListesi = new ArrayList();
>>> kitapListesi.add(new Book("calculus1"));
>>> kitapListesi.add(new Book("calculus2"));
>>> return kitapListesi;
>>> }
>>>
>>> BookAction.java
>>>
>>> public ActionForward execute(ActionMapping mapping, ActionForm form,
>>> HttpServletRequest request, HttpServletResponse response)
>>> throws Exception {
>>>
>>>
>>> BookForm bookForm = (BookForm) form;
>>> Book book = new Book();
>>> bookForm.setBookList(book.loadData());
>>>request.setAttribute("sendJsp", bookForm.getBookList());
>>> return mapping.findForward(SUCCESS);
>>> }
>>>
>>> BookForm.Java
>>>
>>> public class BookForm extends org.apache.struts.action.ActionForm {
>>>
>>> private ArrayList bookList = new ArrayList();
>>>
>>> public BookForm() {
>>> super();
>>> // TODO Auto-generated constructor stub
>>> }
>>> public ArrayList getBookList() { return bookList; }
>>> public void setBookList(ArrayList bookList) { this.bookList =
>>> bookList; }
>>>
>>> struts_config.xml
>>>
>>> >
>>>
>>> >> type="paket.BookAction" >
>>>
>>>
>>>
>>
>> --
>> View this message in context:
>> http://old.nabble.com/Cannot-find-bean%3A-%22sendJsp%22-in-any-scope-tp27915481p27918564.html
>> Sent from the Struts - User mailing list archive at Nabble.com.
>>
>>
>> -
>> To unsubscribe, e-mail: user-unsubscr...@struts.apache.org
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>>
>>
>> __
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>>
>>
>
>--
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>Sent from the Struts - User mailing list archive at Nabble.com.
>
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Re: Cannot find bean: "sendJsp" in any scope
I think you want:
See the docs on logic:iterate for more info:
http://struts.apache.org/1.0.2/struts-logic.html#iterate
If this still doesn't work I would recommend trying to first output a String
property to verify you have everything setup properly.
- Original Message
From: tesla
To: user@struts.apache.org
Sent: Tue, March 16, 2010 10:24:13 AM
Subject: Re: Cannot find bean: "sendJsp" in any scope
When i add logic present tag to data.jsp i am not getting an error but my
page is still empty i think my arraylist is null but why? i'm waiting your
advices
tesla wrote:
>
> Hi
> I wanna show my arrayList on the screen by using logic:iterate tag but
> when i run my application i am gettig this error.I'm working on this
> application for two days and still i cant see my arraylist elements on the
> browser.
> Thanks in advice.
>
> data.jsp
>
>
>
>
>
> Book.java
>
> public class Book {
>
> private String name;
> private String description;
> private int price;
> private int id;
>
> public Book()
>{
>
>}
> public Book(String name)
> {
> this.name=name;
> }
>
> public ArrayList loadData()
> {
> ArrayList kitapListesi = new ArrayList();
> kitapListesi.add(new Book("calculus1"));
> kitapListesi.add(new Book("calculus2"));
> return kitapListesi;
> }
>
> BookAction.java
>
> public ActionForward execute(ActionMapping mapping, ActionForm form,
> HttpServletRequest request, HttpServletResponse response)
> throws Exception {
>
>
> BookForm bookForm = (BookForm) form;
> Book book = new Book();
> bookForm.setBookList(book.loadData());
>request.setAttribute("sendJsp", bookForm.getBookList());
> return mapping.findForward(SUCCESS);
> }
>
> BookForm.Java
>
> public class BookForm extends org.apache.struts.action.ActionForm {
>
> private ArrayList bookList = new ArrayList();
>
> public BookForm() {
> super();
> // TODO Auto-generated constructor stub
> }
> public ArrayList getBookList() { return bookList; }
> public void setBookList(ArrayList bookList) { this.bookList =
> bookList; }
>
> struts_config.xml
>
> >
>
> type="paket.BookAction" >
>
>
>
--
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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
