Returns a value that indicates whether you can change a DAO object.

Return Values

The return value is a Boolean data type that is True if the object can be changed or updated. (Snapshot- and forward-only–type Recordset objects always return False.)

Remarks

Depending on the object, if the Updatable property setting is True, the associated statement in the following table is true.

 

The Updatable property setting is always True for a newly created TableDef object and False for a linked TableDef object. A new TableDef object can be appended only to a database for which the current user has write permission.

Many types of objects can contain fields that can't be updated. For example, you can create a dynaset-type Recordset object in which only some fields can be changed. These fields can be fixed or contain data that increments automatically, or the dynaset can result from a query that combines updatable and nonupdatable tables.

If the object contains only read-only fields, the value of the Updatable property is False. When one or more fields are updatable, the property's value is True. You can edit only the updatable fields. A trappable error occurs if you try to assign a new value to a read-only field.

The Updatable property of a QueryDef object is set to True if the query definition can be updated, even if the resulting Recordset object isn't updatable.

Because an updatable object can contain read-only fields, check the DataUpdatable property of each field in the Fields collection of a Recordset object before you edit a record.