>>>No ideas from anyone?
>>
>>Try

this.PC_Combo1.RowSource = 'this.parent.arrProfitCenters'

>
>Thanks, I thought this should refer to the class. It worked. Almost - as value was not selected.

I don't understand, did my suggestion work or not? As I understand it, 'this.arrProfitCenters' is passed as a string to the combo, so "this" will be treated as the combo itself by the combo, and not this.parent which will actually contain the array.