[flexcoders] Expand All tree nodes

[Ramanamurthy Medarametla]

Hi all,

I'm new to flex. I have a requirement that i have to expand all tree 
nodes when my tree initializes. 
it is showing only one parent node, but i need to display all nodes 
expanded some thing shown below.

 1234
   8923
    ---821932
    ---348273
   9821
    ---342233
       342342
         ---425231
         ---412412
   -- 5678


Thanks in advance