>
>ADD OBJECT grid1 AS grid WITH ;
> ColumnCount = 1, ;
> DeleteMark = .F., ;
> Height = 200, ;
> Left = 27, ;
> Panel = 1, ;
> Top = 40, ;
> Width = 320, ;
> Name = "Grid1", ;
> Column1.Width = 264, ;
> Column1.Name = "Column1"
>

>ADD OBJECT form1.grid1.column1.combo1 AS combobox WITH ;
> BoundColumn = 2, ;
> ColumnWidths = "50,0", ;
> RowSourceType = 6, ;
> RowSource = "Itty.cName,iId", ;
> ControlSource = "InvM.iTTyId", ;
> Height = 24, ;
> ColumnLines = .F., ;
> Left = 142, ;
> Top = 47, ;
> Width = 100, ;
> BoundTo = .T., ;
> Name = "Combo1"

Excuse me, Rex, I can't seek statement like
Column1.CurrentControl = "Combo1"!

You are add Combo control in column, but current control is still Text1 by default. Sorry my importunity, but check Column1.CurrentControl setting.