Checkboxes 2007-12-03 - By Dave Newton
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Oh, that's clever, I don't think I would have thought
of that, and it's a lot quicker than my ideas ;)
d.
--- "Hoying, Ken" <Ken_Hoying@(protected)> wrote:
> Thanks, Dave!
>
> This got me moving in the right direction. For
> future reference, I
> ended using the checkboxlist tag inside of my loop
> and set the list
> attribute to a single value so I would only get the
> one option. This
> seems to have solved my issue.
>
> Thanks,
> Ken
>
> -- --Original Message-- --
> From: Dave Newton [mailto:newton.dave@(protected)]
> Sent: Friday, November 30, 2007 6:06 PM
> To: Struts Users Mailing List
> Subject: RE: [S2] Checkboxes
>
> A single checkbox, AFAIK, only expects to check a
> single value, not an
> array or collection.
>
> I would consider using a modified version of the
> checkboxlist tag if
> it's just a matter of the rendered HTML you're
> having an issue with.
>
> d.
>
> --- "Hoying, Ken" <Ken_Hoying@(protected)> wrote:
>
> > Thank you for the response.
> >
> > I had looked at the example, but it really appears
> to only push the
> > checkbox results to the action. I am not sure
> that it would
> > repopulate the checkbox with the values.
> >
> > I do not believe that checkbox list is going to
> work for me as it does
>
> > not give me control on where to put the
> checkboxes.
> > I need one in each
> > row.
> >
> > It appears that my understanding of how the
> checkbox works is not
> > correct.
> >
> > I am expecting that the checkbox control will call
> the
> > getSelectedContracts() method and see if any of
> these values in the
> > array it returns matches the value specified in
> the fieldValue
> > attribute specified in the checkbox tag. If there
> is a match then
> > check the box, if not don't check it. However,
> all of my checkboxes
> > are always being selected no matter what.
> >
> > I am also expecting that when submitting the form,
> > setSelectedContracts() will be called with an
> array of the values that
>
> > were selected. This does appear to be working
> with one caveat. If
> > nothing is selected then I get the error: Invalid
> field value for
> > field "selectedContracts".
> >
> > This obviously does not work the way I thought and
> I was hoping
> > someone could maybe explain how it does work as I
> am really struggling
>
> > on gaining an understanding of this tag and its
> usage.
> >
> > Thanks in advance,
> > Ken
> >
> > -- --Original Message-- --
> > From: Martin Gainty [mailto:mgainty@(protected)]
> > Sent: Friday, November 30, 2007 11:09 AM
> > To: Struts Users Mailing List
> > Subject: Re: [S2] Checkboxes
> >
> > Hi Ken-
> >
> > struts.xml has this definition of EmployeeAction
> where results
> > populate editEmployee.jsp
> > <action name="delete"
> >
>
class="org.apache.struts2.showcase.action.EmployeeAction"
> > method="delete">
> > <result
> > name="error">/empmanager/editEmployee.jsp</result>
> > <result
> >
>
type="redirect">edit-${currentEmployee.empId}.action</result>
> > </action>
> >
> > looking at the results jsp
> > /empmanager/editEmployee.jsp has a checkbox
> defined as <s:checkbox
> > fieldValue="true" label="Married"
> > name="currentEmployee.married"/>
> >
> > The EmployeeAction is defined as
> > package org.apache.struts2.showcase.action;
> > public class EmployeeAction extends
> > AbstractCRUDAction implements
> > Preparable { private Employee currentEmployee;
> >
> > whereas Employee is defined as
> > package org.apache.struts2.showcase.model;
> > public class Employee implements IdEntity {
> > private boolean married; //checkbox
> >
> > so the individual checkbox works fine for setting
> booleans
> > http://struts.apache.org/2.0.11/docs/checkbox.html
> >
> > For handling a list of checkboxes you may want to
> implement with
> > checkboxlist?
> >
>
http://struts.apache.org/2.0.11/docs/checkboxlist.html
> >
> > M--
> > -- -- Original Message -- --
> > From: "Hoying, Ken" <Ken_Hoying@(protected)>
> > To: <user@(protected)>
> > Sent: Friday, November 30, 2007 8:45 AM
> > Subject: [S2] Checkboxes
> >
> >
> > I am having a difficult time getting checkboxes to
> work in the
> > following scenario and am not sure what I am doing
> wrong. Any help or
>
> > guidance would be greatly appreciated.
> >
> > I have table which displays several rows. In the
> first column of each
>
> > row, I have a check box to select that row. I am
> keeping track of
> > user selections so when they return to the page,
> the checkboxes are
> > prepopulated with their previous selections.
> >
> >
> > My Action contains the following:
> >
> > public Long[] getSelectedContracts()
> > {
> > return setSelectedContracts.toArray(new Long[0]);
> }
> > // end
> > getSelectedContracts
> >
> > /**
> > * This setter takes the provided String[] of
> > selected contract ids.
> > */
> > public void setSelectedContracts(Long[]
> > palngSelectedContracts)
> > {
> >
> >
>
setSelectedContracts.addAll(Arrays.asList(palngSelectedContracts));
> > } // end setSelectedContracts
> >
> > My JSP contains the following:
> >
> > <s:checkbox name="selectedContracts"
> > fieldValue="${contract.npcContractId}"/>
> >
> >
> >
> >
> >
> >
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=== message truncated ===
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