Click on the buttons to expand/collapse the levels of the ASPTreeView

Categories oCateg_7 oCateg_9 oCateg_8 oCateg_10 oCateg_11 oCateg_2 oCateg_6 oCateg_1 oCateg_4 oCateg_5 oCateg_3

The expand/collapse feature will work even if you change the level of the nodes (using drag and drop).