I have a subform that has a primary key-permit number-which I think should be autopopulated when the form is opened for input. The field is not populating until you try to enter something on the form. (Which may be working as designed) It doesn't matter what field you start to enter...the primary field will populate BUT a error occurs that displays the following: You can't assign a value to this object *The object may be a control on a read-only form. *The object may be on a form that is open n Design view. *The value may be too large for this field. I get the error..click OK and a key is populate and everything is working properly-I can enter several more records without the error. But if I get out of the database and come in later on the first record I get the error again. None of the reasons for the error are valid in this situation---when I open the single form not as a subform I don't get this error at all. Help---thoughts---suggestions---answers.
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