HI all,

I have develop a windows application using VB.net2.0, in that I have a UltraTree control to display the details in 3 level (Master,child and GrandChild) with checkbox.

when i click the master tree checkbox then automatically all child and GrandChild checkbox are marked and vice versa.If any one child or grandchild as unmarked means then the corresponding parent are unmard. which event i call, i need you socution with coding.

 Advance thanks for your reply