add record to list box

G

ghillie5150

Ladies and gentlemen,
I have an embedded subform whose Link Masterfield is a listbox and Link
childfield is its own primary key. I can select records in the listbox and
edit them in the subform. I have added an "Add new" button on the subform,
but when I click it and begin to enter a new record, and error message comes
up stating "You can't assign a value to this object" and 1)that the control
may be on a read only form.

First, how do I find out what object it is talking about? Second, are there
any inherint problems with basing a form off a list box and trying to add a
record. This is the first time I've tried it, after reading one of these
posts about it. I must have missed some detail.

Thanks for any help
 
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