Class for managing write off type entities.

The following operations are supported. For a formal definition, please review the Service Description.

• DeleteEntity
  Deletes the specified entity by its RowID.
• GetEntityByEntityID
  Returns a dataset containing the specified entity by its EntityID.
• GetEntityByRowID
  Returns a dataset containing the specified entity by its RowID.
• GetFirstEntity
  Returns a dataset containing the first entity.
• GetLastEntity
  Returns a dataset containing the last entity.
• GetList
  Returns a dataset containing a list of entities.
• GetListTest
  Returns a dataset containing a list of entities.
• GetNextEntity
  Returns a dataset containing the next entity by its EntityID.
• GetPriorEntity
  Returns a dataset containing the prior entity by its EntityID.
• GetSchema
  Returns an empty dataset.
• Ping
  Checks connectivity with the server.
• SaveEntity
  Saves the specified entity.