Can i set the maximum number of records in a table

[Sparky]

Is it possible to set a maximum nummber of records that can be filled in.
I only want to allow 20 records, this being the maximum nuber i want to sign
on to a college course.

 

[Nikos Yannacopoulos]

Sparky,

Assumping you have a courses form and sign on students through a subform
in the courses form, then all you need is this piece of code in the
subform's Current event:

If Me.NewRecord Then
If Me.RecordsetClone.RecordCount = 20 Then
MsgBox "Sorry, class fully booked.", _
vbExclamation, "Sign-on rejected"
Me.Dirty = False
DoCmd.GoToRecord , , acPrevious
End If
End If

HTH,
Nikos

 

[Sparky]

Firstly thanks

I have only just started this table and do not have any subforms.
Also i am fairly new to Access and databases.

 

[Nikos Yannacopoulos]

To begin with, this is not something you can do in the table itself, if
this is what you had in mind. Moreover, all data entry should be made
through forms anyway, not directly in tables. With this in mind, the
restriction will be implemented somewhere in a data entry form. I
assumed a form/subform scheme that makes sense and was likely to be what
you have, but when you get to putting your user interface together, if
you end up with something different, hthe proposed code will have to be
modified accordingly. I can't be any more specific at this point, not
knowing what your forms will be.

Nikos