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  Microsoft(R) Product Support Services Application Note (Text File)
                   WX0637: FORMS QUESTIONS & ANSWERS
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                                                  Revision Date: 10/92
                                                      No Disk Included

The following information applies to Microsoft Access(TM) version 1.0.

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| Copyright 1992 Microsoft Corporation. All Rights Reserved.         |
| Microsoft and MS-DOS are registered trademarks and Microsoft       |
| Access and Windows are trademarks of Microsoft Corporation.        |
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1. Q. How do I invoke my Microsoft Access Basic code from within a
      form?

   A. To call a function from a property, type the following:

        =function name()

      The equal sign and parentheses are required. You can call an
      Access Basic function from form or control properties, such as
      After Update or Default Value. Search for the name of a specific
      property in Help for examples. Subroutines cannot be called from
      properties. For more information, please refer to "An
      Introduction to Programming," Chapter 7, page 1.

2. Q. Do form rules override table rules?

   A. Yes, form rules do override table rules. When you position fields
      on a form by dragging them from the Field list, the validation
      property for the field inherits the validation rule that was
      defined for the field in the table design.

3. Q. When is it appropriate to use the exclamation point versus
      the period when identifying objects and properties in an
      expression?

   A. A good rule of thumb is to use the exclamation point before
      anything you specifically name (such as the name of your form or
      a control on the form) and to use a period before anything
      Microsoft Access names (such as a property).

4. Q. Why doesn't the header I created show in Form view?

   A. The header you created was most likely a page header. There are
      two different types of headers available on forms: form headers
      and page headers. A form header is displayed on-screen and when
      printed; a page header is displayed only when printed.

5. Q. How do I reference a control on a subform?

   A. To reference the subform control itself, you must use the form
      property of the subform control as follows:

        forms![master form name]![subform control name].form![control
        name]

6. Q. When are validation rules on a form evaluated?

   A. Microsoft Access evaluates a validation rule only when data is
      entered or edited in a field and the cursor is moved to a
      different field or record. If you leave the field unchanged, the
      validation rule is not evaluated. Microsoft Access also validates
      a field on a form when you leave the form, when you switch views,
      or when you close the form. To check for nulls, you must use a
      macro. For more information, please refer to Chapter 22 of the
      "User's Guide."