Java EE (Java Enterprise Edition) General Discussion

Hi,

I have created a dataTable component with rowcategory on 2 columns to get the nesting effect on the data rows with check boxes . Initially everything is collapsed. Once i select few checkboxes and then click on "Clear Selection " btn to clear off all the selection, the entire the nesting again collapses.

Can any one suggest how can i prevent this from happening. Also i need to implement an Expand All and Collapse All feature separetely. How can i do this.. I am not using a tree component because i have few text fields and checkboxes for each row. Would be highly grateful if someone could suggest a way or piece of code