how to group data in a list c#
- by prince23
hi,
 i need  to group data of a list  in c#
ex: i have a data like this in a list c#  
i have a class called information.cs  with these properties  name,school, parent
ex data
 name    school  parent
kumar      fes         All
manju      fes         kumar
anu         frank       kumar
anitha      jss          All
rohit       frank       manju
anill        vijaya      manju
vani         jss          kumar
soumya   jss           kumar
madhu     jss          rohit
 shiva       jss          rohit
vanitha       jss          anitha
 anu      jss          anitha
now taking this as an input   i wanted the  output  to be formated with a Hierarchical data
 when parent is all means it  is the topmost level 
     kumar      fes         All. 
 what i need to do here is i need to create an object[0] and then check in list  whether kumar exists as a parent in   the list if it exista then add those items as  under the object[0] as a parent  
i need  to create one more oject under
**manju      fes         kumar
anu         frank       kumar**
what i wanted do here is iterate through the list anD then check the parent level based on 
name    school  parent
kumar      fes         All -->obj[0]
manju      fes         kumar -->obj1[0]
anu         frank       kumar -->obj1[1]
for obj1-- obj[0]  will be parent like this  i need  to genarte  a list or observation class
    anitha      jss          All-->obj[1]
   vanitha       jss          anitha -->obj1[0]
       anu      jss           vanitha -->obj2[0]
here obj2[0]--obj1[0]--obj[1] will be an parent
like this i need  to  create a list or an observationclass  hope my Question is clear what i am trying  ask you people.
  i wanted  to know  how i can create  an observationclass 
 any help would be really great 
 thanks 
prince
hope my question is  clear