Grouping in RadGridView with One Table

[Oliver]

i have a radgridview and showing ObservableCollection(Of tblPerson).
my table is:  (PersnoNo, PersonName,Age,RegDate,LessonName,TeacherName,Score)
I'd like this appear:

PersonNo     |     PersonName     |   Age       |  RegDate
---------------------------------------------------------------------
+20001                   Oliver                  16           2011/12/1
         LessonName   |     TeacherName  |  Score
           ----------------------------------------------------
           L1                             T3                  18
           L2                              T2                  16
           L3                              T7                   20
---------------------------------------------------------------------
+20002                   Jack                15           2011/11/06
         LessonName   |     TeacherName  |  Score
           ----------------------------------------------------
           L3                             T7                  20
           L1                              T3                 19

Note: I only have a table
Not a relationship few tables!
please help me.