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Asked: 2026-05-10T17:43:24+00:00

I have a field on a table in MS Access, tblMyTable.SomeID, and I want

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I have a field on a table in MS Access, tblMyTable.SomeID, and I want to set the default value as a user preference in tblUserPref.DefaultSomeID. It doesn’t appear that I can set the default value to use a query in the table definition of tblMyTable. I have a form where records are entered into tblMyTable. I’ve tried to set the default value of the field on the form, but doesn’t seem to accept a query either. So, as a last resort, I’m trying to do it with VBA. I can query the value that I want in VBA, but I can’t figure out which event to attach the code to.

I want to run the code whenever a new blank record is opened in the form, before the user starts to type into it. I do not want to run the code when an existing record is opened or edited. However, if the code runs for both new blank records and for existing records, I can probably code around that. So far, all of the events I have tried on the field and on the form itself have not run when I wanted them to. Can anyone suggest which event I should use, and on which object?

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1 Answer

  1. I’m not certain I’ve understood the problem, but I think you’re asking to insert a value in the field that is drawn from a different table, based on some runtime information (such as the user name). In that case, you could use the domain lookup function, DLookup(), and you’d pass it the name of the field you want returned, the name of the table or query you’re looking it up from, and the criteria for limiting the result to one row (which would, I assume, depend on values you can gather at runtime). That DLookup() formula could then be set permanently as the default value on the form control, and would not cause the form to be dirtied before you’ve created a real record.

    Of course, I may have completely misinterpreted what you’re trying to do, so this may not work, but you seemed to want to look something up in a recordset and use the result as your value for new records, and DLookup() would allow you to do that without any coding at all (as well as having the benefit of not dirtying the record prematurely).

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