cannot add WindowsFormControlView correctly

Jul 23, 2008 at 9:30 AM
I'm using UIPAB in my application, I have forms derived from WindowsFormView, and controls derived from WindowsFormControlView, when i tried to add the controls to my form, i always get error "Object reference not set to an instance", does anyone know how to solve this problem? I have been searching this question for many days, thanks in advanced.