RE: how to dynamically add to form

2001-11-13 Thread Brian Dainton 

Rob,  

I find it useful (and easier) to work off of other's examples.  Here's what I have done
in the past (actually last Friday):

 
  
  
  
 


Where:

1)  myList: is just an ID that I made up
2) countrystatcollection:  is a collection ( java.util.List ) that I set on the request
object in an action,  which forwards to the page that contains the iterate tag.

//get an object array from helper class
CountryStat[] countryStatArray = ch.retrieveCountryCounts();

int iLength = countryStatArray.length;

for(int n = 0; n < iLength; n++ ){
   //don't add nulls   
   if (countryStatArray[n] != null)
   list.add(countryStatArray[n]);
   }
   request.setAttribute("countrystatcollection", list);


3)  countrystat:  is a simple bean that contains the following members:

protected String countryname = null;

public String getCountryname() {
return countryname;
}

public void setCountryname(String countryname) {
this.countryname = countryname;
}

protected String countryprocessedcount = null;


public String getCountryprocessedcount()  {
  return countryprocessedcount;
   }

   public void setCountryprocessedcount(String asCountryprocessedcount) {

   this.countryprocessedcount = asCountryprocessedcount;
   }
protected String countrytotalcount = null;

public String getCountrytotalcount() {
   return countrytotalcount;
   }

   public void setCountrytotalcount(String asCountrytotalcount) {
   this.countrytotalcount = asCountrytotalcount;
   }

Hope this provides some insight into your problem.  

Brian

 --- Rob Breeds <[EMAIL PROTECTED]> wrote:
> 
> Brian
> 
> Thanks so much for that pointer - that was the solution to that part of the
> problem.
> 
> Now I need to work out why the name value I'm submitting isn't getting into
> the form... (just get nulls every time)
> 
> Rob Breeds
> 
> 
> 
>  
>  
>
> Brian Dainton
>  
>
>  <[EMAIL PROTECTED]>
> o.com>   cc: 
>  
>                    
>  Subject: RE: how to dynamically add to
> form   
> 13/11/2001   
>  
>
> 14:10
>  
>
> Please respond   
>  
>
> to "Struts   
>  
>
> Users Mailing
>  
>
> List"
>  
>
>  
>  
>
>  
>  
>
> 
> 
> 
> 
> Rob,
> 
> I ran into the same thing last week.  Make sure your collection doesn't
> contain any
> 'nulls' (i.e. check for null before adding an item to the collection)
> 
> Brian
> --- Rob Breeds <[EMAIL PROTECTED]> wrote:
> > Thanks Tom, that's certainly interesting stuff and it may solve my
> problem
> > (and for that I am truly grateful!).
> >
> > Is nesting of tags my problem? I still don't see why testcase fails:
> >
> > > This fails, with JSP error 'Cannot find bean el in scope null '
> > > 
> > >  
> > > 
> >
> > Thanks
> >
> > Rob Breeds
> >
> >
> >
> >
> >
> >
> > "Tom Klaasen
> >
> > (TeleRelay)"

RE: how to dynamically add to form

2001-11-13 Thread Rob Breeds 


Brian

Thanks so much for that pointer - that was the solution to that part of the
problem.

Now I need to work out why the name value I'm submitting isn't getting into
the form... (just get nulls every time)

Rob Breeds



   

Brian Dainton  


o.com>   cc:   

 Subject:     RE: how to dynamically add to 
form   
13/11/2001 

14:10  

Please respond 

to "Struts 

Users Mailing  

List"  

   

   





Rob,

I ran into the same thing last week.  Make sure your collection doesn't
contain any
'nulls' (i.e. check for null before adding an item to the collection)

Brian
--- Rob Breeds <[EMAIL PROTECTED]> wrote:
> Thanks Tom, that's certainly interesting stuff and it may solve my
problem
> (and for that I am truly grateful!).
>
> Is nesting of tags my problem? I still don't see why testcase fails:
>
> > This fails, with JSP error 'Cannot find bean el in scope null '
> > 
> >  
> > 
>
> Thanks
>
> Rob Breeds
>
>
>
>
>
>
> "Tom Klaasen
>
> (TeleRelay)"        To: "Struts Users Mailing
List"
> <[EMAIL PROTECTED]>
> 
> relay.com>  Subject: RE: how to
dynamically add to
> form
>
>
> 13/11/2001 13:23
>
> Please respond to
>
> "Struts Users
>
> Mailing List"
>
>
>
>
>
>
>
>
>
> You should have a look at the nested: taglib from Arron Bates, that
> makes both these things really easy.
>
> Quoting his contribution mail:
> -
> For a built version and the updated example (I didn't want to send more
> than was necessary to provide the source)...
> http://www.keyboardmonkey.com/StrutMonkey/downloads/index.html
>
> Updated Running example...
> http://www.keyboardmonkey.com/StrutMonkey/
> -
>
>
> hth,
> tomK
>
>
> > -Original Message-
> > From: Rob Breeds [mailto:[EMAIL PROTECTED]]
> > Sent: dinsdag 13 november 2001 13:57
> > To: Struts Users Mailing List
> > Subject: how to dynamically add to form
> > Importance: High
> >
> >
> >
> > Hi
> >
> > I have an input JSP with a single form on it. The action for
> > the submit
> > will invoke the backend business logic and return a results page. Easy
> > enough.
> >
> > There are several distinct sections in the input page, one
> > for entering 1
> > or more names, another for 1 or more descriptions, and other similar
> > sections requiring multiple inputs.
> >
> > Considering just the Names section, what I want to do is
> > allow the user to
> > enter a new name into a text input box and when they click an
> > 'Add' link
> > next to the name, it adds the name to the current list of names in the
> > ActionForm (stored in a Vector) and redisplays the input form
> > JSP showing
> > the current list of names plus a new input text box. The user
> > should be

RE: how to dynamically add to form

2001-11-13 Thread Brian Dainton 

Rob,

I ran into the same thing last week.  Make sure your collection doesn't contain any
'nulls' (i.e. check for null before adding an item to the collection)

Brian
--- Rob Breeds <[EMAIL PROTECTED]> wrote:
> Thanks Tom, that's certainly interesting stuff and it may solve my problem
> (and for that I am truly grateful!).
> 
> Is nesting of tags my problem? I still don't see why testcase fails:
> 
> > This fails, with JSP error 'Cannot find bean el in scope null '
> > 
> >  
> > 
> 
> Thanks
> 
> Rob Breeds
> 
> 
> 
> 
>  
>  
>   
> "Tom Klaasen 
>  
>   
> (TeleRelay)"To: "Struts Users Mailing List"
> <[EMAIL PROTECTED]>  
>               
>   
> relay.com>  Subject: RE: how to dynamically add 
>to
> form   
>  
>  
>   
> 13/11/2001 13:23 
>  
>   
> Please respond to
>  
>   
> "Struts Users
>  
>   
> Mailing List"
>  
>   
>  
>  
>   
>  
>  
>   
> 
> 
> 
> 
> You should have a look at the nested: taglib from Arron Bates, that
> makes both these things really easy.
> 
> Quoting his contribution mail:
> -
> For a built version and the updated example (I didn't want to send more
> than was necessary to provide the source)...
> http://www.keyboardmonkey.com/StrutMonkey/downloads/index.html
> 
> Updated Running example...
> http://www.keyboardmonkey.com/StrutMonkey/
> -
> 
> 
> hth,
> tomK
> 
> 
> > -Original Message-
> > From: Rob Breeds [mailto:[EMAIL PROTECTED]]
> > Sent: dinsdag 13 november 2001 13:57
> > To: Struts Users Mailing List
> > Subject: how to dynamically add to form
> > Importance: High
> >
> >
> >
> > Hi
> >
> > I have an input JSP with a single form on it. The action for
> > the submit
> > will invoke the backend business logic and return a results page. Easy
> > enough.
> >
> > There are several distinct sections in the input page, one
> > for entering 1
> > or more names, another for 1 or more descriptions, and other similar
> > sections requiring multiple inputs.
> >
> > Considering just the Names section, what I want to do is
> > allow the user to
> > enter a new name into a text input box and when they click an
> > 'Add' link
> > next to the name, it adds the name to the current list of names in the
> > ActionForm (stored in a Vector) and redisplays the input form
> > JSP showing
> > the current list of names plus a new input text box. The user
> > should be
> > able to add one name at a time ad infinitum until they finally hit the
> > submit button for the overall form.
> >
> > name1  <---
> > first 3 names
> > already entered
> > name2  <---
> > name3  <---
> > [ text box ] add name   <--   link to add
> > another name
> > and update display
> >
> > 1. How do I get the 'Add' link to pass the value of the input
> > text box into
> > the ActionForm? I have a

RE: how to dynamically add to form

2001-11-13 Thread Rob Breeds 

Thanks Tom, that's certainly interesting stuff and it may solve my problem
(and for that I am truly grateful!).

Is nesting of tags my problem? I still don't see why testcase fails:

> This fails, with JSP error 'Cannot find bean el in scope null '
> 
>  
> 

Thanks

Rob Breeds




   
   
"Tom Klaasen   
   
(TeleRelay)"To: "Struts Users Mailing List" 
<[EMAIL PROTECTED]>      
              Subject: RE: how to dynamically add to 
form   
   
   
13/11/2001 13:23   
   
Please respond to  
   
"Struts Users  
   
Mailing List"  
   
   
   
   
   




You should have a look at the nested: taglib from Arron Bates, that
makes both these things really easy.

Quoting his contribution mail:
-
For a built version and the updated example (I didn't want to send more
than was necessary to provide the source)...
http://www.keyboardmonkey.com/StrutMonkey/downloads/index.html

Updated Running example...
http://www.keyboardmonkey.com/StrutMonkey/
-


hth,
tomK


> -Original Message-
> From: Rob Breeds [mailto:[EMAIL PROTECTED]]
> Sent: dinsdag 13 november 2001 13:57
> To: Struts Users Mailing List
> Subject: how to dynamically add to form
> Importance: High
>
>
>
> Hi
>
> I have an input JSP with a single form on it. The action for
> the submit
> will invoke the backend business logic and return a results page. Easy
> enough.
>
> There are several distinct sections in the input page, one
> for entering 1
> or more names, another for 1 or more descriptions, and other similar
> sections requiring multiple inputs.
>
> Considering just the Names section, what I want to do is
> allow the user to
> enter a new name into a text input box and when they click an
> 'Add' link
> next to the name, it adds the name to the current list of names in the
> ActionForm (stored in a Vector) and redisplays the input form
> JSP showing
> the current list of names plus a new input text box. The user
> should be
> able to add one name at a time ad infinitum until they finally hit the
> submit button for the overall form.
>
> name1  <---
> first 3 names
> already entered
> name2  <---
> name3  <---
> [ text box ] add name   <--   link to add
> another name
> and update display
>
> 1. How do I get the 'Add' link to pass the value of the input
> text box into
> the ActionForm? I have a field in the ActionForm called
> newName, and when
> the setNewName method is called it will add the new name to the Vector
> called names. I can't see how to get to the form from a  forward>... and I shouldn't have to submit the form to update
> each section
> of the form should I?
>
> 2. For testing, I am submitting the form, and in the Action
> adding dummy
> data into the Vector of names (in NameBean objects with a
> property of name)
> and forwarding back to the input page. I use the  tag to
> display the contents of the Vector names, but it gives weird results:!
>
> Following works and displays the object references to the items in the
> Vector so I know that there are the correct number of items:
> 
>
> This fails, with JSP error 'Cannot find bean el in scope null '
> 
>  
> 
>
> It's al

RE: how to dynamically add to form

2001-11-13 Thread Tom Klaasen (TeleRelay) 

You should have a look at the nested: taglib from Arron Bates, that
makes both these things really easy.

Quoting his contribution mail:
-
For a built version and the updated example (I didn't want to send more 
than was necessary to provide the source)...
http://www.keyboardmonkey.com/StrutMonkey/downloads/index.html

Updated Running example...
http://www.keyboardmonkey.com/StrutMonkey/
-


hth,
tomK


> -Original Message-
> From: Rob Breeds [mailto:[EMAIL PROTECTED]] 
> Sent: dinsdag 13 november 2001 13:57
> To: Struts Users Mailing List
> Subject: how to dynamically add to form
> Importance: High
> 
> 
> 
> Hi
> 
> I have an input JSP with a single form on it. The action for 
> the submit
> will invoke the backend business logic and return a results page. Easy
> enough.
> 
> There are several distinct sections in the input page, one 
> for entering 1
> or more names, another for 1 or more descriptions, and other similar
> sections requiring multiple inputs.
> 
> Considering just the Names section, what I want to do is 
> allow the user to
> enter a new name into a text input box and when they click an 
> 'Add' link
> next to the name, it adds the name to the current list of names in the
> ActionForm (stored in a Vector) and redisplays the input form 
> JSP showing
> the current list of names plus a new input text box. The user 
> should be
> able to add one name at a time ad infinitum until they finally hit the
> submit button for the overall form.
> 
> name1  <--- 
> first 3 names
> already entered
> name2  <---
> name3  <---
> [ text box ] add name   <--   link to add 
> another name
> and update display
> 
> 1. How do I get the 'Add' link to pass the value of the input 
> text box into
> the ActionForm? I have a field in the ActionForm called 
> newName, and when
> the setNewName method is called it will add the new name to the Vector
> called names. I can't see how to get to the form from a  forward>... and I shouldn't have to submit the form to update 
> each section
> of the form should I?
> 
> 2. For testing, I am submitting the form, and in the Action 
> adding dummy
> data into the Vector of names (in NameBean objects with a 
> property of name)
> and forwarding back to the input page. I use the  tag to
> display the contents of the Vector names, but it gives weird results:!
> 
> Following works and displays the object references to the items in the
> Vector so I know that there are the correct number of items:
> 
> 
> This fails, with JSP error 'Cannot find bean el in scope null '
> 
>  
> 
> 
> It's almost as if the ActionForm isn't being saved in the 
> request but then
> why does the display work when I don't use iterate?
> 
> I'm going round in circles with this so any help to get me 
> moving again is
> appreciated.
> 
> Thanks
> 
> Rob Breeds
> 
> 
> 
> 
> 
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> To unsubscribe, e-mail:   
> <mailto:struts-user-> [EMAIL PROTECTED]>
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how to dynamically add to form

2001-11-13 Thread Rob Breeds 


Hi

I have an input JSP with a single form on it. The action for the submit
will invoke the backend business logic and return a results page. Easy
enough.

There are several distinct sections in the input page, one for entering 1
or more names, another for 1 or more descriptions, and other similar
sections requiring multiple inputs.

Considering just the Names section, what I want to do is allow the user to
enter a new name into a text input box and when they click an 'Add' link
next to the name, it adds the name to the current list of names in the
ActionForm (stored in a Vector) and redisplays the input form JSP showing
the current list of names plus a new input text box. The user should be
able to add one name at a time ad infinitum until they finally hit the
submit button for the overall form.

name1  <--- first 3 names
already entered
name2  <---
name3  <---
[ text box ] add name   <--   link to add another name
and update display

1. How do I get the 'Add' link to pass the value of the input text box into
the ActionForm? I have a field in the ActionForm called newName, and when
the setNewName method is called it will add the new name to the Vector
called names. I can't see how to get to the form from a ... and I shouldn't have to submit the form to update each section
of the form should I?

2. For testing, I am submitting the form, and in the Action adding dummy
data into the Vector of names (in NameBean objects with a property of name)
and forwarding back to the input page. I use the  tag to
display the contents of the Vector names, but it gives weird results:!

Following works and displays the object references to the items in the
Vector so I know that there are the correct number of items:


This fails, with JSP error 'Cannot find bean el in scope null '

 


It's almost as if the ActionForm isn't being saved in the request but then
why does the display work when I don't use iterate?

I'm going round in circles with this so any help to get me moving again is
appreciated.

Thanks

Rob Breeds





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