Thank you for that but because I'm not a programmer of any discription, I'm still slightly confused on the coding.
When I achieved what I'm trying to do in VBA I used SELECT CASE to do it, should I be using it in Studio. I haven't had any success with it, but I might not be doing it correctly for Studio.
Or reading your suggestion gave me the idea that perhaps I could set the database that I want in the second combobox and then have the selected value of the first combobox became the field and text values for the second object box. Do you know if that's possible? If I understand what you were showing me, would this be the coding.
myIndex = "Option" & ThisEventObject.ListIndex {does this give me the selection from the first cbobox named "cbogenesis"}
Set objForm = Layer.Forms("Tree") {tree is the form they are both on}
Set objPage = objEditForm.Pages("[1]") {page 1 }
Set objComboControl = objPage.Controls("[cbospecies]") {"cbospecies" is the second cbobox}
objlistvaluefield.Clear
objlisttestfield.Clear
Set objlistvaluefield = myindex
Set objlisttestfield = myindex
Unfortunately I can't try it until I finish redoing the databases, how I did them orginally made sense to me but made the mobile Unit go at snail pace.
Rebecca