Problem in populating a tree

Hi,

I am trying to populate a tree with the value from R3 backend. The tree has one root node and 3 child nodes under it. when i run this webdynpro application, i am getting the root node but the child nodes come as one entity i.e the values in the 3 child nodes comes directly under the root node instead of 3 seperate nodes.

can someone suggest what could be the cause of the problem.

Thanks and Regards,

Chander