With Mydac version 8.5.17 and Delphi XE8  must re-declare all fields of tables and queries. If you do not, the fields lookup do not work  neither mastersouce.
As happens apparently were declared with an older version of MyDAC or Delphi.
I could not play but a field that was declared TasAutoIncfield is now how TWordField or TByteField as the case
			
									
									
						Mastersource and lookup XE8
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				cybsistemas
 - Posts: 118
 - Joined: Mon 12 Sep 2005 17:31
 - Location: Argentina
 
Re: Mastersource and lookup XE8
Unfortunately, we can't reproduce the problem. To investigate this behavior of MyDAC, please send a small sample to demonstrate the issue to viktorv*devart*com, including a script to create and fill in the test database object.