Help with default Values and command buttons

[Keb]

So I have developed a cost sheet SubForm for studentcharges, the student charges change depending on the program they areattending. What I would like to do is have a command button for each programand when it is click have the appropriate charges populate the fields in thesub form. Can anyone please help withthis?
Thanks,
Keb

[burrina]

Is this subform populating anything else? Normally you would have a DLookup or use a Combox and have it populate the fields for you. Where Are you wanting to display this, on the subform, subform footer, Report? I would lookup the rate for the class attended and then do whatever you need to do with it.

Can you provide more details as to your form,table structure and fields?