SYMPTOMS
When you run a Microsoft Excel Visual Basic for Applications macro that
uses Data Access Objects (DAO), you may receive one of the following error
messages:
Compile Error:
Named Argument Not Found
Run-time error '438':
Object doesn't support this property or method
RESOLUTION
Microsoft provides programming examples for illustration only, without warranty either expressed or implied. This includes, but is not limited to, the implied warranties of merchantability or fitness for a particular purpose. This article assumes that you are familiar with the programming language that is being demonstrated and with the tools that are used to create and to debug procedures. Microsoft support engineers can help explain the functionality of a particular procedure, but they will not modify these examples to provide added functionality or construct procedures to meet your specific requirements.
To work around this behavior, use positional arguments instead of named
arguments.
In a Visual Basic macro, when you call a Subroutine or Function, you can
supply arguments positionally, in the order in which they appear in the
definition of the procedure. Alternatively, you can supply the arguments by
name without regard to position. However, with DAO properties and methods,
Microsoft recommends that you use only positional arguments.
Example of the Problem
The DAO 3.5 OpenDatabase method uses the following syntax:
Set <database> = OpenDatabase(dbname, options, readonly, connect)
If you use the OpenDatabase method by supplying named arguments in the
macro, you may receive one of the errors described in this article. For
example, when you run the following macro, the compile error "Named
Argument Not Found" appears:
Set DB = _
OpenDatabase(dbname:= "C:\My Documents\DB1.MDB", readonly: = True)
Example of the Resolution
To correct the problem, use positional arguments. To do this, supply the
arguments for the method in the correct position, where each argument is
delimited by a comma, as shown in the following example:
Set DB = OpenDatabase("C:\My Documents\DB1.MDB", , True)
REFERENCES
For more information about named arguments, click the Index tab in
Visual Basic for Applications Help, type the following text
click the Display button, and then double-click the "Understanding Named
Arguments and Optional Arguments" topic.