BaseName Property

Returns the name of the specified field as it appears in the source database. Read-only String.

expression   Required. An expression that returns a PivotField object.

Remarks

A field can have several names, as shown in the following table.

Name	Description
Caption	The name the user sees.
Name	The name used to identify the field in code.
DataField	The name of the field in the underlying recordset. (This is not necessarily the same as the base name; you can use a different name if there is a naming conflict or if you want to make the name easier to use and remember.)
BaseName	The name of the field in the original source database.