Kendo TreeView Select Next Node

I am working on KendoTreeview,i want to select next node and display data related to it automatically when first node operation is complete. please let me know how this can be done.

Intially kendo treeview loads,suppose there are 5 customers a,b,c,d,e then this five names will be in kendotreeview on below other

a

b

c

d

e

with first customer which is a selected and in middle a gridview will be displayed with details of a customer. below gridview there is assign button,when i click assign button a unique id is assign to the customer,after this it should move to next customer which is b,b should be selected and b's details should be visible and also treeview should refreshed there should four customers now b,c,d,e as a is processed. please do let me know about the same how this could be done.