Element lists are used for different purposes during export and import of data. Depending on this purpose, different properties of ElementListItem are used.
It can hold
•a list of table names returned by a call to Application.GetDatabaseTables,
•a list of field names retuned by a call to Application.GetDatabaseImportElementList or Application.GetTextImportElementList,
•a field name filter list used in Application.ImportFromDatabase and Application.ImportFromText,
•a list of table names and counts for their rows and columns as returned by calls to GetExportElementList or
•a field name filter list used in Document.ExportToDatabase and Document.ExportToText.