Selected item for mutilple datagrid's

Dear all, 

first of all please do not confuse with my question title.It is a single seleteditem on Multiple datagrid ( notmultipleselecteditems on a single datagrid) 

I have multiple datagrids ( say three ), each datagrid from the lowest depends for its data from the selecteditem from the above datagrid. 

I have asked questions on selecteditem on datagrid by populating the data from a sqlserver few weeks ago, and i managed to solve this issue with some answers.

http://social.msdn.microsoft.com/Forums/en-US/wpf/thread/76ad5efe-0589-417d-9ffe-5c5911ffd520/#d884f0c8-a809-4358-b8e1-3b177ef3c48d

is it possible to use the same selecteditem of a datagrid on multiple datagrid's ? 

for example , in the previous problem it was only 1:1 datagrid, will it be possible to implement the same concept like there are three datagrids, 

This is my MainViewModel for the previous selecteditem 1:1 datagrid's

 public class MainViewModel : BindableBase, INotifyPropertyChanged
    {       
        public MainViewModel()
        {
            this.Persons = Person.GetPersons();
         }
// for Person Datagrid
private ObservableCollection<Person> personValues;
public ObservableCollection<Person> Persons
{
get { return personValues; }
set { this.SetProperty<ObservableCollection<Person>>(ref this.personValues, value); }
}
// for PersonDetail datagrid
private ObservableCollection<PersonDetails> detailsvalues;
public ObservableCollection<PersonDetails> Details
{
get
{
if (this.Selectedperson == null)
{
return null;
}
return this.LoadDetails(this.Selectedperson.PersonID);
}
}
private ObservableCollection<PersonDetails> LoadDetails(int personID)
{
ObservableCollection<PersonDetails> details = new ObservableCollection<PersonDetails>();
foreach (PersonDetails detail in PersonDetails.GetDetails().Where(item => item.PersonID == personID))
{
details.Add(detail);
}
return details;
}

private Person selectedPersonValue;
public Person Selectedperson
{
get { return selectedPersonValue; }
set
{
this.SetProperty<Person>(ref this.selectedPersonValue, value);
this.RaiseNotification("Details");
}
}
}

any body suggest me to proceed further for the third datagrid. if somebody doesn't understand my question, pls tell me, i will try to explain it better.

Thanks