The data type of a portfolio schema column (/CollectionField /Subtype). The
first three are user-defined values supplied per file via
CollectionItem.values; the rest are synthetic columns the viewer
derives from each file (its name, description, size, dates) and need no value.
The data type of a portfolio schema column (
/CollectionField /Subtype). The first three are user-defined values supplied per file via CollectionItem.values; the rest are synthetic columns the viewer derives from each file (its name, description, size, dates) and need no value.