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Applies to: Access 2013, Office 2013
Sets or returns a value that indicates whether a Field object requires a non-Null value.
Syntax
expression .Required
expression A variable that represents an Index object.
Remarks
Note
When you can set this property for either an Index object or a Field object, set it for the Field object. The validity of the property setting for a Field object is checked before that of an Index object.
The availability of the Required property depends on the object that contains the Fields collection, as shown in the following table.
If the Fields collection belongs to a |
Then Required is |
|---|---|
Index object |
Not supported |
QueryDef object |
Read-only |
Recordset object |
Read-only |
Relation object |
Not supported |
TableDef object |
Read/write |