When you preview a form that contains a subform, the subform area is blank.
However, you can see the subform control when you open the main form in Design view.
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If you have a subform that does not contain any data, the subform
appears in Form view with the structure only. However, no part of the
subform is visible when you preview the form.
This behavior also occurs if the DataEntry property of the subform is set to Yes. When you preview a form, you are opening it. Because
the subform is opening in data entry mode, it does not contain any data.
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Steps to Reproduce Behavior
CAUTION: If you follow the steps in this example, you modify the sample database Northwind.mdb. You may want to back up the Northwind.mdb file and follow these steps on a copy of the database.
- Open the sample database Northwind.mdb.
- Open the Orders Subform in Design view.
- Set the form's DataEntry property to Yes.
- Save the form and close it.
- Open the Orders form in Form view. Note the appearance of the Orders
Subform on the form.
- Open the Orders form in Print Preview. Note that the portion of the
form containing the Orders Subform is blank.
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