displaying tree structure clear reports


does anyone know proceed paint tree structure clear reports?
my large emanate i don't know abyss tree. represented database list rudimentary "childid -> parentid" relationship.



a ideal instance open windows explorer, feeling during office tree left side. anyone knows proceed paint tree, following it'll work i need too.



my initial attempts have been:



1) programatically (in c#) supplement groups report. unfortunately, can't emanate new instance organisation category supplement groups collection.



2) recursively nest same news itself any level. words:



mainreport
  subreport
    subreport
    subreport
  subreport
  subreport
    subreport


etc...



unfortunately, subreports can't enclose subreports.



i unequivocally don't wish only supplement x array groups news bury ones i don't need, since i'd have supplement bound array nested groups, nonetheless technically information settlement support an enormous depth, even nonetheless use adult 5 levels depth.



so, any ideas?



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