Re: checkboxes in datatable

[nimisha sharma]

I think i am doing the right thing with this.. i went to jenia.org and followed the instructions.. as i told you that i was not even getting the checkboxes, now i am getting them.. but when i click on the commandButton, i dont get the selected rows in the Collection/ List (i tried both one at a time). I am pasting my jsp and my bean code as under.. and i have the 2 jar files in the classpath : commons and dataTools provided by jenia. I could just not figure out where i am going wrong. Could you plz have a look at the code..

 

<

h:form>

          <h:dataTable value="#{MaintenanceBean.perfFeeMaintModel.perfFee }"

                                   var="accountList"

                                    id="perfFeeMaint"

                                    rows="4">

                     <t:column>

                               <f:facet name= "header">

                                       <h:outputText value= "Number"></h:outputText>

                               </f:facet>

                                    <t:outputText value="#{accountList.id }"></t:outputText>

                      </t:column>

                      <t:column>

                               <f:facet name= "header">

                                       <h:outputText value= "Account"></h:outputText>

                               </f:facet>

                                      <t:outputText value="#{accountList.account }"></t:outputText>

                         </t:column>

                         <t:column>

                                 <f:facet name= "header">

                                        <h:outputText value= "Performance Fee"></h:outputText>

                                 </f:facet>

                                      <jdt:multipleRowsSelector    

                                   selectionList="#MaintenanceBean.perfFeeMaintModel.selectionList}" />

                             </t:column>

                   </h:dataTable>

<h:panelGrid columns="22" cellpadding="0" cellspacing= "0" border="0" width= "80" >

<t:dataScroller id="perfFeeScroller"

                       for="perfFeeMaint"

                      pageCountVar="pageCount"

                      pageIndexVar="pageIndex"

                      paginator="true"

                      paginatorMaxPages="9"

                      paginatorTableClass="paginator"

                      paginatorActiveColumnStyle="font-weight:bold;" >

<f:facet name="first" >

<h:graphicImage value="/images/FirstPage.gif" style="margin-top:4pt;"/>

</f:facet>

<f:facet name="last" >

<h:graphicImage value="/images/LastPage.gif" style="margin-top:4pt;"/>

</f:facet>

<f:facet name="previous" >

<h:graphicImage value="/images/PreviousItem.gif" style="margin-top:4pt;"/>

</f:facet>

<f:facet name="next" >

<h:graphicImage value="/images/NextItem.gif" style="margin-top:4pt;"/>

</f:facet>

</t:dataScroller>

</h:panelGrid>

</h:form>

<h:form id="saveForm" >

<h:panelGroup>

<h:commandButton id="savePerf" value="Save" action="#MaintenanceBean.perfFeeMaintModel.save }"></h:commandButton>

</h:panelGroup>

</h:form>

 

Bean code:

 

List

perfFee = new ArrayList();

private Collection selectedList;

public Collection getSelectedList() {

return selectedList;

}

public void setSelectedList(Collection selectedList) {

this.selectedList = selectedList;

}

public List getPerfFee() {

perfFee.add(new PerformanceFeeData(1, "001" , true));

perfFee.add(new PerformanceFeeData(2, "002" , true));

perfFee.add(new PerformanceFeeData(3, "003" , false));

perfFee.add(new PerformanceFeeData(4, "004" , true));

perfFee.add(new PerformanceFeeData(5, "005" , true));

perfFee.add(new PerformanceFeeData(6, "006" , true));

perfFee.add(new PerformanceFeeData(7, "007" , false));

perfFee.add(new PerformanceFeeData(8, "008" , true));

perfFee.add(new PerformanceFeeData(9, "009" , true));

perfFee.add(new PerformanceFeeData(10, "010" ,true));

return perfFee;

}

public String save(){

//setSelectedRow(Integer.parseInt((String) FacesContext.getCurrentInstance

).getExternalContext().getRequestParameterMap().get("selectedRow")));

//setSelectedPerf(Boolean.parseBoolean((String) FacesContext.getCurrentInstance

).getExternalContext().getRequestParameterMap().get("selectedPerf")));

//System.out.println("selected row: " + selectedRow + " selected perf : " + selectedPerf);

if(selectedList != null ){

System.out.println("size " + selectedList.size());

}

return "success";

}

 

Here, the selectedList.size() gives me zero even if i select some checkboxes...

 

I would really appreciate your help.. have been trying this for a long time now..

 

Thanks again for taking out time to guide me..

 

Regards,

Nimisha.

 

On 8/9/06, Andrew Robinson <[EMAIL PROTECTED]> wrote:

Jenia's data multipleRowsSelector builds a list of the objects that
you are iterating over. So if your data table's value points to a list
of "MyObject" then the multipleRowsSelector will create list of
MyObject instances for each row that had the checkbox selected.

public class MyItem { ... }
public class MyBean
{
private List<MyItem> selectedItems;
private List<MyItem> allItems;

public List<MyItem> getSelectedItems() { return selectedItems; }
public void setSelectedItems(List<MyItem> selectedItems)
{ this.selectedItems = selectedItems; }
public List<MyItem> getAllItems() { return allItems; }

public String load()
{
   // load all items here
}

public String onSubmit()
{
   // put your code here
   for (MyItem item : selectedItems)
     ; // do something with it
}
}


<t:dataTable
value="#{myBean.allItems}"
var="_item">
<t:column>
   <jdt:multipleRowsSelector
     selectionList="#{ myBean.selectedItems}" />
</t:column>
<t:column>
   <f:facet name="header">
     <t:outputText value="Something" />
   </f:facet>
   <t:outputText value="#{_item.something}" />
</t:column>
</t:dataTable>
<t:commandLink action="">value="Submit" />

As I mentioned, you don't want to work with IDs of the checkboxes.

-Andrew


On 8/9/06, nimisha sharma <[EMAIL PROTECTED]> wrote:
>
> I also saw your post on
> http://mail-archives.apache.org/mod_mbox/myfaces-users/200605.mbox/[EMAIL PROTECTED]
>
>  but i dont get any checkboxes when i use :
>
>
> <jdt:multipleRowsSelector  selectionList="#{ mybean.selectedItems}" />
>
>
> To be more precise, plz find my datatable part:
>
>
>
> <html xmlns:jdt="http://www.jenia.org/jsf/dataTools ">
>
> -------
>
> <
> t:dataTable
> value="#{MaintenanceBean.perfFeeMaintModel.perfFee}"
>
> var="accountList"
>
> id="perfFeeMaint"
>
> rows="4">
>
> <t:column>
>
> <f:facet name="header" >
>
> <h:outputText value="Number" ></h:outputText>
>
> </f:facet>
>
>
>
> <t:outputText value="#{accountList.id}" >
>
> <f:param id="selectedRow"
>
> name="id"
>
> value="#{ accountList.id}" />
>
> </t:outputText>
>
> </t:column>
>
> <t:column>
>
> <f:facet name="header" >
>
> <h:outputText value="Account" ></h:outputText>
>
> </f:facet>
>
>
>
> <t:outputText value="#{accountList.account}" ></t:outputText>
>
> </t:column>
>
> <t:column>
>
> <f:facet name="header" >
>
> <h:outputText value="Performance Fee" ></h:outputText>
>
> </f:facet>
>
>
>
> <jdt:multipleRowsSelector selectionList="#{ accountList.selectedPerf }" />
>
>
>
>
>
> </t:column>
>
> </t:dataTable>
> I need the id for each checkbox that is selected by the user.. like in
> regular HTML,  i can do that by request.getParameterValues() and it gives me
> an array..
>
> Thanks for the help again...
>
> Regards,
>
> Nimisha.
>
>
>
>
> On 8/9/06, nimisha sharma <[EMAIL PROTECTED]> wrote:
> >
> >
> > Hi Andrew,
> >
> > Thanks for the quick response. What i want to do exactly is that one of
> the columns (it is a property in my list) in my datatable contains
> checkboxes.. i have to get them prepopulated (this i can easily do since the
> list that i pass to my datatable has it)
> > Now, once the user has this infront of him, he can modify the status of
> these checkboxes and submit the form. I need to retrieve these values in my
> bean.. so that i can update the db with the values selected by the user.
> >
> > With the first option i could not get exactly what has to be done.
> >
> > Regards,
> >
> > Nimisha.
> >
> >
> > On 8/9/06, Andrew Robinson <[EMAIL PROTECTED] > wrote:
> > > And FYI, you should avoid using the request parameters yourself -- it
> > > is best to let the JSF controls do that. DataTables not only use
> > > client IDs, but also add an inded for each row, so it is really not
> > > best to attempt to reproduce the ID yourself. Also renderers have the
> > > full ability and right according to the specification to change the ID
> > > to whatever they want (they don't even have to use the ID attribute
> > > from the UIComponent if they don't want to)
> > >
> > > On 8/9/06, Andrew Robinson < [EMAIL PROTECTED] > wrote:
> > > > If the checkbox is for a property on your loop variable (say Item):
> > > >
> > > > <t:dataTable
> > > >   value="#{mybean.mylist}"
> > > >   var="_item">
> > > >   <t:column>
> > > >     <t:selectBooleanCheckbox value="#{_item.selected}" />
> > > >   </t:column>
> > > > </t:dataTable>
> > > >
> > > > If you want to save the checked items in a list on the bean:
> > > > <html
> > > >   ...
> > > >   xmlns:jdt=" http://www.jenia.org/jsf/dataTools">
> > > >   ...
> > > >   <t:dataTable
> > > >     value="#{mybean.mylist}"
> > > >     var="_item">
> > > >     <t:column>
> > > >       <jdt:multipleRowsSelector
> > > >         selectionList="#{ mybean.selectedItems}" />
> > > >     </t:column>
> > > >   </t:dataTable>
> > > >
> > > > Where "selectedItems" would map to methods:
> > > > public List<Item> getSelectedItems()
> > > > public void setSelectedItems(List<Item> items)
> > > >
> > > > -Andrew
> > > >
> > > > On 8/9/06, nimisha sharma < [EMAIL PROTECTED]> wrote:
> > > > >
> > > > > Hi,
> > > > >
> > > > > I think this discussion must have already been there on this but
> since i
> > > > > could not find it, i m posting it here..
> > > > >
> > > > > I have a datatable where i have checkboxes in one column that the
> user
> > > > > checks.. these values have to be saved when the user clicks the save
> button.
> > > > > Somehow, i cannot get the values in my bean.. The command button for
> save
> > > > > has an action that calls the save() method in my bean. I have to get
> the
> > > > > values here so that i can update the db tables with these values.
> > > > >
> > > > > With each checkbox, i have set the param also.. as given:
> > > > >
> > > > >
> > > > >
> > > > > <t:selectBooleanCheckbox value="#{ accountList.perfFee}" >
> > > > >
> > > > > <f:param id="selectedPerf"
> > > > >
> > > > > name="perf"
> > > > >
> > > > > value="#{accountList.perfFee}" />
> > > > >
> > > > > </t:selectBooleanCheckbox>
> > > > >
> > > > > now, in my bean if i try getting the value using:
> > > > >
> > > > > (String)
> > > > >
> FacesContext.getCurrentInstance ().getExternalContext().getRequestParameterMap().get("selectedPerf");
> > > > > it returns null as there would be a List of values..
> > > > >
> > > > > Could someone give me directions as to how this can be done...
> > > > >
> > > > > Appreciate,
> > > > >
> > > > >
> > > > > Nimisha.
> > > > >
> > > >
> > >
> >
> >
>
>