how to display list of objects in turn each object contains one more list using jsf2.0 datatable?

[prasad kakani]

Hi All,

I need to display list of objects in turn each object contains one more list using jsf2.0 datatable. I mean the requirement is like this.

StudentVO {
private string name;
private string failedSubjects[];
private string passedSubjects[];
}
Here i need to display list of students in datatable.

<h:dataTable id="studentID" var="studentVO" value="#{demandManagedBean.allStudentsList}" >
<h:column>
<f:facet name="header">
name
</f:facet>
</h:column>
<h:column>
<f:facet name="header">
failedSubjects // how to retrieve the these failed objects?
</f:facet>
</h:column>

</h:datatable>

[Nikhil Padharia]

prasad kakani wrote: failedSubjects // how to retrieve the these failed objects?

You can have a getter method in your class returning String of comma seperated failedSubjects or as desired in the output

public String getFailedSubjs(){
  return "subj1, subj2";
}

This can be displayed on page using

#{obj.failedSubjs}

[prasad kakani]

Hi Nikhil,

i need to display these failed subjects values in another rows .how this can be done in jsf datatable?

          no         studentname         failledsubjects         passedSubjects
          
          []          [+]aaaa                    -                               -
            
          []          [+]bbbb                     -                               -  

when u click student name i need to display his failed subjects and passed subjects in another rows. [] represents check box

         no         studentname         failledsubjects         passedSubjects
          
          []          [-]aaaa                    -                               -

                           []                      failedsub1                 passedsub1
                               
                           []                      failedsub2                 passedsub2

          []          [+]bbbb                     -                               -  
                           
                                      [submit selected values]button

[Nikhil Padharia]

You can use nested tables, See the example here
And the rest expand collapse you can perform through javascript..