When you place a control in a window, PowerBuilder assigns it a unique name. The name is the concatenation of the default prefix for the control name and the lowest 1- to 4-digit number that makes the name unique.
For example, assume the prefix for ListBoxes is lb_ and you add a ListBox to the window:
If the names lb_1, lb_2, and lb_3 are currently used, the default name is lb_4
If lb_1 and lb_3 are currently used but lb_2 is not, the default name is lb_2
