Re: multiple form fields (I HATE CTRL-S )
yes niall, it's name of hindu god. but i am just a human ;-)
pual, did it help you???
- Original Message -
From: Niall Pemberton [EMAIL PROTECTED]
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Sent: Thursday, June 28, 2001 8:31 PM
Subject: RE: multiple form fields (I HATE CTRL-S )
Paul,
1) The reason you're getting null pointer error for the attribute
indexed
is because Dave's tags initialise indexed to null - you have to set it
to
true or false in your jsp.
i.e. html:text name=parameter property=value indexed=true/
2) You seem to be setting up your data incorrectly in your jsp
Typically an action of yours would run off, get some data and load it into
your ActionForm which then forward to a jsp to display/edit.
I'm not sure why you've got it in your jsp, but anyway what you've done
isnt
right - its creating your vector BUT isntead of putting it in your
actionForm, your storing it as a page scope parameter under the name
ParameterList.
Instead of this:
pageContext.setAttribute(ParameterList, vin,
PageContext.PAGE_SCOPE);
You should be doing something like:
salesordercreateForm.setParameterList(vin);
My suggestion too keep it simple, take that stuff out of your jsp and put
it
in the constructor of your ActionForm - then you know its always going to
be
present (dont have to worry about scope). Anyway as you have it at the
moment youre always going to have any empty vector - so you wont see
anything.
i.e. something like
public class SalesOrderCreateForm extends ActionForm {
public SalesOrderCreateForm() {
parameterList.add(0,new
SapValidParameter(orderitemsin_itmnumber,00010));
parameterList.add(0,new
SapValidParameter(orderitemsin_material,TEST));
parameterList.add(0,new
SapValidParameter(orderitemsin_billdate,2101));
parameterList.add(0,new
SapValidParameter(orderitemsin_plant,2000));
parameterList.add(0,new
SapValidParameter(orderitemsin_targetqty,1000));
parameterList.add(0,new
SapValidParameter(orderitemsin_shorttext,TEST));
parameterList.add(0,new
SapValidParameter(orderitemsin_reqdate,2101));
parameterList.add(0,new
SapValidParameter(orderitemsin_matlgroup,2000));
parameterList.add(0,new
SapValidParameter(orderitemsin_purchdate,2101));
parameterList.add(0,new
SapValidParameter(orderitemsin_currency,USD));
}
etc. etc.
3) Rama Krishna's (isnt he a Hindu God?) put up a reply for you about
Vector
or Vectors (havent done that flavour myself), so if you can get that
working
to display your data youre half way there.
Niall
-Original Message-
From: Paul Beer [mailto:[EMAIL PROTECTED]]
Sent: 29 June 2001 03:35
To: Struts-User
Subject: RE: multiple form fields (I HATE CTRL-S )
OK here's my bad code. There are two problems Im try to resollve here
:
1) i cant iterate through a vector (how do i give the html tag an
enumerator
???)
2) even though i rebuilt struts w/tags from husted.com i get a
null pointer
error for the attribute indexed
i can get iterations to work with simple ine dimensional arrays,
but what i
really want to do is input a grid of data as a vector of vectors. so
basically what is below is only a broken half the implementation i
need...
the other thing i need to know is how to set this data in the
formBean.
does this method do it :
public void setParameterList(Vector parameterList)
{
this.parameterList = parameterList;
}
first here's the errors I am trying to get around :
Attribute 'indexed' not found in tag library 'null' for the tag text.
I also get no results form the vector iteration below.
here's the JSP :
html:form
{ java.util.Vector vin = new java.util.Vector();
vin.add(0,new SapValidParameter(orderitemsin_itmnumber,00010));
vin.add(0,new SapValidParameter(orderitemsin_material,TEST));
vin.add(0,new
SapValidParameter(orderitemsin_billdate,2101));
vin.add(0,new SapValidParameter(orderitemsin_plant,2000));
vin.add(0,new SapValidParameter(orderitemsin_targetqty,1000));
vin.add(0,new SapValidParameter(orderitemsin_shorttext,TEST));
vin.add(0,new SapValidParameter(orderitemsin_reqdate,2101));
vin.add(0,new SapValidParameter(orderitemsin_matlgroup,2000));
vin.add(0,new
SapValidParameter(orderitemsin_purchdate,2101));
vin.add(0,new SapValidParameter(orderitemsin_currency,USD));
pageContext.setAttribute(ParameterList, vin,
PageContext.PAGE_SCOPE);
}
%
ol
logic:iterate id=parameter name=salesordercreateForm
property=parameterList
html:text name=parameter property=value /
/logic:iterate
/ol
/html:form
/body
/html:html
here's the form code :
/**
* The parameter list
*/
private Vector parameterList = new Vector();
/**
* Return
RE: multiple form fields (I HATE CTRL-S )
Hi Paul. Just got in (tied up this am).
Agree with everything that Niall said. Just wanted to confirm that you don't
get an error when you actually BUILD Struts? ie you get the error when you try
and use the tag, and check that you have copied the struts-html.tld into your
directory too?
Let me know if you still have probs.
Dave
PS Don't worry about asking the qu's - can all be quite confusing to start
with!!
Niall Pemberton [EMAIL PROTECTED] on
06/28/2001 11:31:28 PM
Please respond to [EMAIL PROTECTED]
To: [EMAIL PROTECTED],
[EMAIL PROTECTED]
cc:(bcc: David Hay/Lex/Lexmark)
Subject: RE: multiple form fields (I HATE CTRL-S )
Paul,
1) The reason you're getting null pointer error for the attribute indexed
is because Dave's tags initialise indexed to null - you have to set it to
true or false in your jsp.
i.e. html:text name=parameter property=value indexed=true/
2) You seem to be setting up your data incorrectly in your jsp
Typically an action of yours would run off, get some data and load it into
your ActionForm which then forward to a jsp to display/edit.
I'm not sure why you've got it in your jsp, but anyway what you've done isnt
right - its creating your vector BUT isntead of putting it in your
actionForm, your storing it as a page scope parameter under the name
ParameterList.
Instead of this:
pageContext.setAttribute(ParameterList, vin, PageContext.PAGE_SCOPE);
You should be doing something like:
salesordercreateForm.setParameterList(vin);
My suggestion too keep it simple, take that stuff out of your jsp and put it
in the constructor of your ActionForm - then you know its always going to be
present (dont have to worry about scope). Anyway as you have it at the
moment youre always going to have any empty vector - so you wont see
anything.
i.e. something like
public class SalesOrderCreateForm extends ActionForm {
public SalesOrderCreateForm() {
parameterList.add(0,new
SapValidParameter(orderitemsin_itmnumber,00010));
parameterList.add(0,new
SapValidParameter(orderitemsin_material,TEST));
parameterList.add(0,new
SapValidParameter(orderitemsin_billdate,2101));
parameterList.add(0,new
SapValidParameter(orderitemsin_plant,2000));
parameterList.add(0,new
SapValidParameter(orderitemsin_targetqty,1000));
parameterList.add(0,new
SapValidParameter(orderitemsin_shorttext,TEST));
parameterList.add(0,new
SapValidParameter(orderitemsin_reqdate,2101));
parameterList.add(0,new
SapValidParameter(orderitemsin_matlgroup,2000));
parameterList.add(0,new
SapValidParameter(orderitemsin_purchdate,2101));
parameterList.add(0,new
SapValidParameter(orderitemsin_currency,USD));
}
etc. etc.
3) Rama Krishna's (isnt he a Hindu God?) put up a reply for you about Vector
or Vectors (havent done that flavour myself), so if you can get that working
to display your data youre half way there.
Niall
-Original Message-
From: Paul Beer [mailto:[EMAIL PROTECTED]]
Sent: 29 June 2001 03:35
To: Struts-User
Subject: RE: multiple form fields (I HATE CTRL-S )
OK here's my bad code. There are two problems Im try to resollve here :
1) i cant iterate through a vector (how do i give the html tag an
enumerator
???)
2) even though i rebuilt struts w/tags from husted.com i get a
null pointer
error for the attribute indexed
i can get iterations to work with simple ine dimensional arrays,
but what i
really want to do is input a grid of data as a vector of vectors. so
basically what is below is only a broken half the implementation i need...
the other thing i need to know is how to set this data in the formBean.
does this method do it :
public void setParameterList(Vector parameterList)
{
this.parameterList = parameterList;
}
first here's the errors I am trying to get around :
Attribute 'indexed' not found in tag library 'null' for the tag text.
I also get no results form the vector iteration below.
here's the JSP :
html:form
{ java.util.Vector vin = new java.util.Vector();
vin.add(0,new SapValidParameter(orderitemsin_itmnumber,00010));
vin.add(0,new SapValidParameter(orderitemsin_material,TEST));
vin.add(0,new SapValidParameter(orderitemsin_billdate,2101));
vin.add(0,new SapValidParameter(orderitemsin_plant,2000));
vin.add(0,new SapValidParameter(orderitemsin_targetqty,1000));
vin.add(0,new SapValidParameter(orderitemsin_shorttext,TEST));
vin.add(0,new SapValidParameter(orderitemsin_reqdate,2101));
vin.add(0,new SapValidParameter(orderitemsin_matlgroup,2000));
vin.add(0,new SapValidParameter(orderitemsin_purchdate,2101));
vin.add(0,new SapValidParameter(orderitemsin_currency,USD));
pageContext.setAttribute(ParameterList, vin,
PageContext.PAGE_SCOPE);
}
%
ol
logic:iterate id=parameter name=salesordercreateForm
property=parameterList
html:text name=parameter
RE: multiple form fields (I HATE CTRL-S )
i got it all compiled. i think it wasnt compiling just becasue there were
older versions of some of the java files.. versionitis.
anyway, Ive got a vector iteration working, but I am still struggling
getting the vector values to display in the html tag.
i get a Unable to Find Method error. Is the property=value setting
accessing the vector object getValue() method? This is the part that seems
to be broken.
thanks for any help you can give.
-paul
here is my code :
SapValidParameter :
String FieldName = new String();
String FieldValue = new String();
public SapValidParameter(String f, String v) { FieldName = f; FieldValue =
v; }
public String getValue() {return FieldName; }
public String getName() {return FieldValue; }
public String toString() {return FieldName; }
}
formbean:
private Vector parameterList = new Vector();
public SalesOrderCreateForm() {
parameterList.add(0,new
SapValidParameter(orderitemsin_itmnumber,00010));
parameterList.add(1,new
SapValidParameter(orderitemsin_material,TEST));
parameterList.add(2,new
SapValidParameter(orderitemsin_billdate,2101));
parameterList.add(3,new
SapValidParameter(orderitemsin_plant,2000));
parameterList.add(4,new
SapValidParameter(orderitemsin_targetqty,1000));
parameterList.add(5,new
SapValidParameter(orderitemsin_shorttext,TEST));
parameterList.add(6,new
SapValidParameter(orderitemsin_reqdate,2101));
parameterList.add(7,new
SapValidParameter(orderitemsin_matlgroup,2000));
parameterList.add(8,new
SapValidParameter(orderitemsin_purchdate,2101));
parameterList.add(9,new
SapValidParameter(orderitemsin_currency,USD));
}
/**
* Return the list of parameters
*/
public Vector getParameterList()
{
return(this.parameterList);
}
public String getParameters()
{
return(this.parameterList.toString());
}
/**
* Set the list of parameters
*
* @param parameterList The new list
*/
public void setParameterList(Vector parameterList)
{
this.parameterList = parameterList;
}
/**
* Get a particular parameter from the parameterList, based on index
*
* @param index The index of the parameter to retrieve
*/
public SapValidParameter getParameter(int index)
{
return (SapValidParameter)parameterList.elementAt(index);
}
JSP:
logic:iterate id=parameter name=salesordercreateForm
property=parameterList
html:text name=parameter property=value indexed=true /
/logic:iterate
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Friday, June 29, 2001 10:06 AM
To: [EMAIL PROTECTED]
Subject: RE: multiple form fields (I HATE CTRL-S )
Hi Paul. Just got in (tied up this am).
Agree with everything that Niall said. Just wanted to confirm that you
don't
get an error when you actually BUILD Struts? ie you get the error when you
try
and use the tag, and check that you have copied the struts-html.tld into
your
directory too?
Let me know if you still have probs.
Dave
PS Don't worry about asking the qu's - can all be quite confusing to start
with!!
Niall Pemberton [EMAIL PROTECTED] on
06/28/2001 11:31:28 PM
Please respond to [EMAIL PROTECTED]
To: [EMAIL PROTECTED],
[EMAIL PROTECTED]
cc:(bcc: David Hay/Lex/Lexmark)
Subject: RE: multiple form fields (I HATE CTRL-S )
Paul,
1) The reason you're getting null pointer error for the attribute indexed
is because Dave's tags initialise indexed to null - you have to set it to
true or false in your jsp.
i.e. html:text name=parameter property=value indexed=true/
2) You seem to be setting up your data incorrectly in your jsp
Typically an action of yours would run off, get some data and load it into
your ActionForm which then forward to a jsp to display/edit.
I'm not sure why you've got it in your jsp, but anyway what you've done isnt
right - its creating your vector BUT isntead of putting it in your
actionForm, your storing it as a page scope parameter under the name
ParameterList.
Instead of this:
pageContext.setAttribute(ParameterList, vin, PageContext.PAGE_SCOPE);
You should be doing something like:
salesordercreateForm.setParameterList(vin);
My suggestion too keep it simple, take that stuff out of your jsp and put it
in the constructor of your ActionForm - then you know its always going to be
present (dont have to worry about scope). Anyway as you have it at the
moment youre always going to have any empty vector - so you wont see
anything.
i.e. something like
public class SalesOrderCreateForm extends ActionForm {
public SalesOrderCreateForm() {
parameterList.add(0,new
SapValidParameter(orderitemsin_itmnumber,00010));
parameterList.add(0,new
SapValidParameter(orderitemsin_material,TEST
Re: multiple form fields (I HATE CTRL-S )
i do have the same problem. i can get to display it with bean:write but
struck up when displaying in text fields.
can anyone help us???
- Original Message -
From: Paul Beer [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Friday, June 29, 2001 12:26 PM
Subject: RE: multiple form fields (I HATE CTRL-S )
i got it all compiled. i think it wasnt compiling just becasue there were
older versions of some of the java files.. versionitis.
anyway, Ive got a vector iteration working, but I am still struggling
getting the vector values to display in the html tag.
i get a Unable to Find Method error. Is the property=value setting
accessing the vector object getValue() method? This is the part that
seems
to be broken.
thanks for any help you can give.
-paul
here is my code :
SapValidParameter :
String FieldName = new String();
String FieldValue = new String();
public SapValidParameter(String f, String v) { FieldName = f; FieldValue
=
v; }
public String getValue() {return FieldName; }
public String getName() {return FieldValue; }
public String toString() {return FieldName; }
}
formbean:
private Vector parameterList = new Vector();
public SalesOrderCreateForm() {
parameterList.add(0,new
SapValidParameter(orderitemsin_itmnumber,00010));
parameterList.add(1,new
SapValidParameter(orderitemsin_material,TEST));
parameterList.add(2,new
SapValidParameter(orderitemsin_billdate,2101));
parameterList.add(3,new
SapValidParameter(orderitemsin_plant,2000));
parameterList.add(4,new
SapValidParameter(orderitemsin_targetqty,1000));
parameterList.add(5,new
SapValidParameter(orderitemsin_shorttext,TEST));
parameterList.add(6,new
SapValidParameter(orderitemsin_reqdate,2101));
parameterList.add(7,new
SapValidParameter(orderitemsin_matlgroup,2000));
parameterList.add(8,new
SapValidParameter(orderitemsin_purchdate,2101));
parameterList.add(9,new
SapValidParameter(orderitemsin_currency,USD));
}
/**
* Return the list of parameters
*/
public Vector getParameterList()
{
return(this.parameterList);
}
public String getParameters()
{
return(this.parameterList.toString());
}
/**
* Set the list of parameters
*
* @param parameterList The new list
*/
public void setParameterList(Vector parameterList)
{
this.parameterList = parameterList;
}
/**
* Get a particular parameter from the parameterList, based on index
*
* @param index The index of the parameter to retrieve
*/
public SapValidParameter getParameter(int index)
{
return (SapValidParameter)parameterList.elementAt(index);
}
JSP:
logic:iterate id=parameter name=salesordercreateForm
property=parameterList
html:text name=parameter property=value indexed=true /
/logic:iterate
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Friday, June 29, 2001 10:06 AM
To: [EMAIL PROTECTED]
Subject: RE: multiple form fields (I HATE CTRL-S )
Hi Paul. Just got in (tied up this am).
Agree with everything that Niall said. Just wanted to confirm that you
don't
get an error when you actually BUILD Struts? ie you get the error when
you
try
and use the tag, and check that you have copied the struts-html.tld into
your
directory too?
Let me know if you still have probs.
Dave
PS Don't worry about asking the qu's - can all be quite confusing to
start
with!!
Niall Pemberton [EMAIL PROTECTED]
on
06/28/2001 11:31:28 PM
Please respond to [EMAIL PROTECTED]
To: [EMAIL PROTECTED],
[EMAIL PROTECTED]
cc:(bcc: David Hay/Lex/Lexmark)
Subject: RE: multiple form fields (I HATE CTRL-S )
Paul,
1) The reason you're getting null pointer error for the attribute
indexed
is because Dave's tags initialise indexed to null - you have to set it
to
true or false in your jsp.
i.e. html:text name=parameter property=value indexed=true/
2) You seem to be setting up your data incorrectly in your jsp
Typically an action of yours would run off, get some data and load it into
your ActionForm which then forward to a jsp to display/edit.
I'm not sure why you've got it in your jsp, but anyway what you've done
isnt
right - its creating your vector BUT isntead of putting it in your
actionForm, your storing it as a page scope parameter under the name
ParameterList.
Instead of this:
pageContext.setAttribute(ParameterList, vin,
PageContext.PAGE_SCOPE);
You should be doing something like:
salesordercreateForm.setParameterList(vin);
My suggestion too keep it simple, take that stuff out of your jsp and put
it
in the constructor of your ActionForm - then you know its always going
RE: multiple form fields (I HATE CTRL-S )
Rama, Paul
Hadn't tried Vector of Vectors before and this isnt a very elegant solution,
but it works.
Basically I resolved it by sub-classing Vector to create a VectorBean
(adding getValue/setValue methods) and generating the name in the format
name=grid[x].value[y].value
My suggestion would be to write your own tag which generates it all
automatically, so you would have to code something like:
myTags:input type=text outer=grid outerIndex=rowNo inner=cell
innerIndex=cellNo/
Perhaps if its just used in grid situations your tag could discover these
attributes anyway - I'm not sure, havent looked into it.
hope this helps
Niall
--- START jsp --
html:form action=/test5.do
table
logic:iterate id=row name=myActionForm property=grid
indexId=rowNo
tr
logic:iterate id=cell name=row indexId=cellNo
tdinput type=text
value=bean:write name='cell'/
name=grid[bean:write name='rowNo'/].value[bean:write
name='cellNo'/].value
/td
/logic:iterate
/tr
/logic:iterate
/table
html:submit/
/html:form
--- END jsp --
---START MyActionForm --
package com.amarda.hbm.main;
import org.apache.struts.action.ActionForm;
import java.util.Vector;
public class MyActionForm extends ActionForm {
private VectorBean grid = new VectorBean();
public MyActionForm() {
// Create the Grid
for (int i = 0; i 5; i++) {
//Create a row
VectorBean row = new VectorBean();
row.add(Cell (+i+, 0));
row.add(Cell (+i+, 1));
row.add(Cell (+i+, 2));
grid.add(row);
}
}
/**
* Return the grid
*/
public VectorBean getGrid() {
return grid;
}
/**
* Get a particular row from the grid
*
* @param index The index of the parameter to retrieve
*/
public VectorBean getGrid(int index){
return (VectorBean)grid.elementAt(index);
}
}
--- END MyActionForm --
---START VectorBean --
package com.amarda.hbm.main;
import java.util.Vector;
public class VectorBean extends Vector {
private int index;
public VectorBean() {
super();
}
public VectorBean(int init) {
super(init);
}
public VectorBean(int init, int incr) {
super(init, incr);
}
public Object getValue(int index) {
//store the index, so that when
// the setValue() method is called
// ws know which element to update
this.index = index;
return this;
}
public void setValue(Object value) {
this.setElementAt(value, index);
}
}
--- END VectorBean --
-Original Message-
From: Rama Krishna [mailto:[EMAIL PROTECTED]]
Sent: 29 June 2001 22:02
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: Re: multiple form fields (I HATE CTRL-S )
i do have the same problem. i can get to display it with bean:write but
struck up when displaying in text fields.
can anyone help us???
- Original Message -
From: Paul Beer [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Friday, June 29, 2001 12:26 PM
Subject: RE: multiple form fields (I HATE CTRL-S )
i got it all compiled. i think it wasnt compiling just becasue
there were
older versions of some of the java files.. versionitis.
anyway, Ive got a vector iteration working, but I am still struggling
getting the vector values to display in the html tag.
i get a Unable to Find Method error. Is the property=value setting
accessing the vector object getValue() method? This is the part that
seems
to be broken.
thanks for any help you can give.
-paul
__
__
here is my code :
SapValidParameter :
String FieldName = new String();
String FieldValue = new String();
public SapValidParameter(String f, String v) { FieldName = f;
FieldValue
=
v; }
public String getValue() {return FieldName; }
public String getName() {return FieldValue; }
public String toString() {return FieldName; }
}
formbean:
private Vector parameterList = new Vector();
public SalesOrderCreateForm() {
parameterList.add(0,new
SapValidParameter(orderitemsin_itmnumber,00010));
parameterList.add(1,new
SapValidParameter(orderitemsin_material,TEST));
parameterList.add(2,new
SapValidParameter(orderitemsin_billdate,2101));
parameterList.add(3,new
SapValidParameter(orderitemsin_plant,2000));
parameterList.add(4,new
SapValidParameter(orderitemsin_targetqty,1000));
parameterList.add(5,new
SapValidParameter(orderitemsin_shorttext,TEST));
parameterList.add(6,new
SapValidParameter(orderitemsin_reqdate,2101));
parameterList.add(7,new
RE: multiple form fields (I HATE CTRL-S )
OK here's my bad code. There are two problems Im try to resollve here :
1) i cant iterate through a vector (how do i give the html tag an enumerator
???)
2) even though i rebuilt struts w/tags from husted.com i get a null pointer
error for the attribute indexed
i can get iterations to work with simple ine dimensional arrays, but what i
really want to do is input a grid of data as a vector of vectors. so
basically what is below is only a broken half the implementation i need...
the other thing i need to know is how to set this data in the formBean.
does this method do it :
public void setParameterList(Vector parameterList)
{
this.parameterList = parameterList;
}
first here's the errors I am trying to get around :
Attribute 'indexed' not found in tag library 'null' for the tag text.
I also get no results form the vector iteration below.
here's the JSP :
html:form
{ java.util.Vector vin = new java.util.Vector();
vin.add(0,new SapValidParameter(orderitemsin_itmnumber,00010));
vin.add(0,new SapValidParameter(orderitemsin_material,TEST));
vin.add(0,new SapValidParameter(orderitemsin_billdate,2101));
vin.add(0,new SapValidParameter(orderitemsin_plant,2000));
vin.add(0,new SapValidParameter(orderitemsin_targetqty,1000));
vin.add(0,new SapValidParameter(orderitemsin_shorttext,TEST));
vin.add(0,new SapValidParameter(orderitemsin_reqdate,2101));
vin.add(0,new SapValidParameter(orderitemsin_matlgroup,2000));
vin.add(0,new SapValidParameter(orderitemsin_purchdate,2101));
vin.add(0,new SapValidParameter(orderitemsin_currency,USD));
pageContext.setAttribute(ParameterList, vin, PageContext.PAGE_SCOPE);
}
%
ol
logic:iterate id=parameter name=salesordercreateForm
property=parameterList
html:text name=parameter property=value /
/logic:iterate
/ol
/html:form
/body
/html:html
here's the form code :
/**
* The parameter list
*/
private Vector parameterList = new Vector();
/**
* Return the list of parameters
*/
public Vector getParameterList()
{
return(this.parameterList);
}
public String getParameters()
{
return(this.parameterList.toString());
}
/**
* Set the list of parameters
*
* @param parameterList The new list
*/
public void setParameterList(Vector parameterList)
{
this.parameterList = parameterList;
}
/**
* Get a particular parameter from the parameterList, based on index
*
* @param index The index of the parameter to retrieve
*/
public SapValidParameter getParameter(int index)
{
return (SapValidParameter)parameterList.elementAt(index);
}
-Original Message-
From: Niall Pemberton [mailto:[EMAIL PROTECTED]]
Sent: Thursday, June 28, 2001 5:40 PM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: RE: multiple form fields
Hey thats what this list is for - your headaches as valid as anyone elses,
keep sending them until you get a result.
Post all the bits of code in an email - your action form and/or bean(s) and
the jsp - plus when is throwing the Null pointer exception, - in the jsp,
before your page is displaying or afterwards when its trying to populate
back?
Off the top of my head you might be getting null pointer exceptions for a
couple of reasons:
1) If its happening before your page is displayed it might be because there
are nulls in your array/collection/vector - make sure its all
loaded/initialised containing no nulls before you forward to your jsp page.
2) If its happening after you submit your form back (using Daves tags) then
check the scope of your form - if its in session scope you should be OK, if
its in request scope you will need to do something clever to set it up
again. Struts effectively does a getX(index).setY(value) call
Anyway, if you post your code it'll be easier to see whats happening.
You are using Dave's modified tags from husted.com?
Niall
-Original Message-
From: Paul Beer [mailto:[EMAIL PROTECTED]]
Sent: 29 June 2001 00:56
To: [EMAIL PROTECTED]
Subject: RE: multiple form fields
Im still having problems getting this. I just started using struts so
please bear with me here. But can someone please email me
something similar
to the logic-iterate example that cmoes with the example-taglibs demo ? I
am getting null pointer errors and I dont if it is my struts
distribution or
my own inability to grock this
i will try not to toxify this list with any more of this
its just that
if I cant model a formbean w/a grid of data struts is worthless to me,
because my whole world is executing functions w/import tables.
-paul
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Thursday, June 28, 2001 1:54 PM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: RE: multiple form fields
Paul,
a concrete example using modified tag:
jsp:
RE: multiple form fields (I HATE CTRL-S )
Paul,
1) The reason you're getting null pointer error for the attribute indexed
is because Dave's tags initialise indexed to null - you have to set it to
true or false in your jsp.
i.e. html:text name=parameter property=value indexed=true/
2) You seem to be setting up your data incorrectly in your jsp
Typically an action of yours would run off, get some data and load it into
your ActionForm which then forward to a jsp to display/edit.
I'm not sure why you've got it in your jsp, but anyway what you've done isnt
right - its creating your vector BUT isntead of putting it in your
actionForm, your storing it as a page scope parameter under the name
ParameterList.
Instead of this:
pageContext.setAttribute(ParameterList, vin, PageContext.PAGE_SCOPE);
You should be doing something like:
salesordercreateForm.setParameterList(vin);
My suggestion too keep it simple, take that stuff out of your jsp and put it
in the constructor of your ActionForm - then you know its always going to be
present (dont have to worry about scope). Anyway as you have it at the
moment youre always going to have any empty vector - so you wont see
anything.
i.e. something like
public class SalesOrderCreateForm extends ActionForm {
public SalesOrderCreateForm() {
parameterList.add(0,new
SapValidParameter(orderitemsin_itmnumber,00010));
parameterList.add(0,new
SapValidParameter(orderitemsin_material,TEST));
parameterList.add(0,new
SapValidParameter(orderitemsin_billdate,2101));
parameterList.add(0,new
SapValidParameter(orderitemsin_plant,2000));
parameterList.add(0,new
SapValidParameter(orderitemsin_targetqty,1000));
parameterList.add(0,new
SapValidParameter(orderitemsin_shorttext,TEST));
parameterList.add(0,new
SapValidParameter(orderitemsin_reqdate,2101));
parameterList.add(0,new
SapValidParameter(orderitemsin_matlgroup,2000));
parameterList.add(0,new
SapValidParameter(orderitemsin_purchdate,2101));
parameterList.add(0,new
SapValidParameter(orderitemsin_currency,USD));
}
etc. etc.
3) Rama Krishna's (isnt he a Hindu God?) put up a reply for you about Vector
or Vectors (havent done that flavour myself), so if you can get that working
to display your data youre half way there.
Niall
-Original Message-
From: Paul Beer [mailto:[EMAIL PROTECTED]]
Sent: 29 June 2001 03:35
To: Struts-User
Subject: RE: multiple form fields (I HATE CTRL-S )
OK here's my bad code. There are two problems Im try to resollve here :
1) i cant iterate through a vector (how do i give the html tag an
enumerator
???)
2) even though i rebuilt struts w/tags from husted.com i get a
null pointer
error for the attribute indexed
i can get iterations to work with simple ine dimensional arrays,
but what i
really want to do is input a grid of data as a vector of vectors. so
basically what is below is only a broken half the implementation i need...
the other thing i need to know is how to set this data in the formBean.
does this method do it :
public void setParameterList(Vector parameterList)
{
this.parameterList = parameterList;
}
first here's the errors I am trying to get around :
Attribute 'indexed' not found in tag library 'null' for the tag text.
I also get no results form the vector iteration below.
here's the JSP :
html:form
{ java.util.Vector vin = new java.util.Vector();
vin.add(0,new SapValidParameter(orderitemsin_itmnumber,00010));
vin.add(0,new SapValidParameter(orderitemsin_material,TEST));
vin.add(0,new SapValidParameter(orderitemsin_billdate,2101));
vin.add(0,new SapValidParameter(orderitemsin_plant,2000));
vin.add(0,new SapValidParameter(orderitemsin_targetqty,1000));
vin.add(0,new SapValidParameter(orderitemsin_shorttext,TEST));
vin.add(0,new SapValidParameter(orderitemsin_reqdate,2101));
vin.add(0,new SapValidParameter(orderitemsin_matlgroup,2000));
vin.add(0,new SapValidParameter(orderitemsin_purchdate,2101));
vin.add(0,new SapValidParameter(orderitemsin_currency,USD));
pageContext.setAttribute(ParameterList, vin,
PageContext.PAGE_SCOPE);
}
%
ol
logic:iterate id=parameter name=salesordercreateForm
property=parameterList
html:text name=parameter property=value /
/logic:iterate
/ol
/html:form
/body
/html:html
here's the form code :
/**
* The parameter list
*/
private Vector parameterList = new Vector();
/**
* Return the list of parameters
*/
public Vector getParameterList()
{
return(this.parameterList);
}
public String getParameters()
{
return(this.parameterList.toString());
}
/**
* Set the list of parameters
*
* @param parameterList The new list
*/
public void setParameterList(Vector parameterList)
{
this.parameterList = parameterList
