>1. When grid's recordsource changes (I always tend to do this programmatically) I usually wrap the code that requery the grid's recordsource (let's say Table1) with a leading
> THISFORM.grdMyGrid.RecordSource = ''
>and an ending
> THISFORM.grdMyGrid.RecordSource = 'Table1'
>This way I preserve grid / columns settings that otherwise get lost.
>
>2. In Init() event of main form I coded:
> ...
> *- Set relation into Attachm for selected products lv_orditems.itemcod
> SET ORDER TO TAG Item IN Attachm
> SET RELATION TO itemcod INTO Attachm IN lv_orditems
> ...
>
>3. I only bind Attachm table field item to a grid column. Other grid columns are binded to lv_orditems fields. No other controls in the form involves Attachm nor lv_orditems fields.

Nicola,
PMFJI. With relations active and grids on form if you call refresh from a child grid be sure to select parentalias explicitly. This is a known issue for grids :(
Cetin