Mega Code Archive

 

Categories / Delphi / ADO Database

 

Mastersource-masterfields behavior

Question: Are MasterSource/MasterFields like a filter in the sense that the ClientDataSet retrieves all records and filters for those records that match the linked fields? Answer: It really depends on how you have it set up. If you set PacketRecords to -1 then yes, that is the way it works. If you have PacketRecords to 0 and FetchOnDemand as True, then it will use Provider.SetParams and fetch just the records that match the master.