Question

in order to select the data i want to remove i put a selectbooleanCheckbox in each row of my dataTable, But the checkbox doesn’t change state and it’s always set to false even if i select the row (it works fine outside the dataTable).
here’s my backingBean:

    public class PermissionCtrl {

    //some attributes
    private UIData datas;
    private List<Permission> permissions;


    private UISelectBoolean checkbox ;

    @EJB
    private PermissionEjbLocal permissionService;


     //getters & setters


    public List<Permission> getSelectedPermissions() {

    Permission selectedRow = new Permission();
    int size = datas.getRowCount();

    List<Permission> selectedPermissions = new ArrayList<Permission>();
    for (int i = 0; i < size; i++) {
        datas.setRowIndex(i);
        System.out.println(i);
        System.out.println(checkbox.isSelected());
        if (checkbox.isSelected()) {

            selectedRow = (Permission) datas.getRowData();
            selectedPermissions.add(selectedRow);

        }

    }
    return selectedPermissions;
}

public String removeAction() {

    List<Permission> selectedPermissions = getSelectedPermissions();
    for (Permission p : selectedPermissions) {

        permissionService.removePermission(p);
    }
    this.permissions =  permissionService.getAllPermissions(); 

    return null;
}
    }

and this is the dataTable where i get the data:

    <ice:form>
    <ice:dataTable binding="#{permissionCtrl.datas}" value="#{permissionCtrl.permissions}" var="p">
            <ice:column>
                <f:facet name="header">
                    <ice:outputText value="select" />
                </f:facet>
                <ice:selectBooleanCheckbox binding="#{permissionCtrl.checkbox}"  />
            </ice:column>
            <ice:column>
                <f:facet name="header">
                    <ice:outputText value="ID" />
                </f:facet>
                <ice:outputText value="test" />
            </ice:column>
            <ice:column>
                <f:facet name="header">
                    <ice:outputText value="Label" />
                </f:facet>
                <ice:outputText value="#{p.label}" />

            </ice:column>

            <ice:column style="width:150px">
                <f:facet name="header">
                    <ice:outputText value="Url" />
                </f:facet>
                <ice:outputText value="#{p.url}" />

            </ice:column>


            <ice:column style="width:300px">
                <f:facet name="header">
                    <ice:outputText value="Description" />
                </f:facet>
                <ice:outputText value="#{p.description}" />

            </ice:column>
        </ice:dataTable>
    </ice:form>

did anyone ran into a similar issue? are there any errors in my code?

Answer 1

what you have done is.. for all object you are binding with same variable,so the result would be last selection item.it would get overwrite till all objects arrived.

Solution is ::

make one persistent boolean property in Permission class like isSelected

put value with property like

<ice:selectBooleanCheckbox binding="#{permissionCtrl.checkbox}" value="#{p.selected}"/>

you will get value true or false in checkbox property in backing bean.

public List<Permission> getSelectedPermissions() {

    Permission selectedRow = new Permission();
    int size = datas.getRowCount();

    List<Permission> selectedPermissions = new ArrayList<Permission>();
    for (int i = 0; i < size; i++) {
        datas.setRowIndex(i);
        selectedRow = (Permission) datas.getRowData();
        if (selectedRow.isSelected()) {
            selectedPermissions.add(selectedRow);
        }
    }
    return selectedPermissions;
}