In a single select box, you can assign the value of the bound column (I think perhaps also you can use the selected property, but haven't tested):
[tt]me!lstMyList=15
me!lstMyList.selected(5) = true ' not sure[/tt]
or set the listindex, which requires the control to have focus, which again will trigger after update (and click, too?) I think.
[tt]me!lstMyList.setfocus
me!lstMyList.listindex=10 [/tt]
For multisielects,
[tt]me!lstMyList.selected(5) = true
me!lstMyList.selected(8) = true
...[/tt]
Roy-Vidar