FILTERGROUP Example

FILTERGROUPS are used in 2 ways:
1) when you want to put multiple filters on the SAME field
2) when you want to hide a filter from the users, so they cannot change/delete it

-Example for 1: I want Customers whose names start with ABC and have XYZ somewhere in their names

SETFILTER("Customer Name",'ABC*');
FILTERGROUP(6);
SETFILTER("Customer Name",'*XYZ*');
FILTERGROUP(0);

-Example for 2: : the use has to select an item from a certain Vendor and he may NOT change (or delete) the filer on the vendor.

recItem.RESET;
recItem.FILTERGROUP(6);
recItem.SETRANGE("Vendor No.",codVendorNo);
recItem.FILTERGROUP(0);
IF FORM.RUNMODAL(0,recItem) = ACTION::LOOKUPOK THEN BEGIN
  ...
END;

The FILTERGROUP 6 changes the filtergroup in which I put the SETRANGE, then I put the FILTERGROUP back to 0 (the standard one) so the user doesn't see/cannot change my filter on Vendor no.