Fórum O que exatamente segnifica isso? TDataSetState #343027

  TDataSetState = (dsInactive, dsBrowse, dsEdit, dsInsert, dsSetKey,
    dsCalcFields, dsFilter, dsNewValue, dsOldValue, dsCurValue,     dsBlockRead,    dsInternalCalc, dsOpening);

  TCriterionType = (
  (* Where Criteria *)
    ctEqualTo,            { Member matchs with Value                   }
    ctLike,               { Member matchs with Value using Like clause }
    ctGreaterOrEqual,     { Member is greater or equal to Value        }
    ctGreaterThan,        { Member is only greater than Value          }
    ctLessOrEqual,        { Member is less or equal to Value           }
    ctLessThan,           { Member is only less than Value             }
    ctBetween,            { Member is between two items in Value array }
    ctIn,                 { Member is in one item of Value array       }
    ctIsNull,             { Member is Null                             }
  (* OrderBy Criteria *)
    ctOrderBy,            { Define the OrderBy                         }
    ctOrderByDesc,        { Define the OrderBy Descentent              }
  (* Criteria Grouping *)
    ctStartGrouping,      { add "(" to user defined begin grouping     }
    ctEndGrouping         { add ")" to user defined end grouping       }
  );
//o que me parece ser a mesma coisa do TDataSetState i que eu não sei que nome se dá

//i ele depois faz isso
const
  CriteriaOperators: array[TCriterionType] of string = (
    ´=´,
    ´LIKE´,
    ´>=´,
    ´>´,
    ´<=´,
    ´<´,
    ´AND´,
    ´IN´,
    ´IS NULL´,
    EmptyStr,
    EmptyStr,
    ´(´,
    ´)´
  );
//até aqui eu entendi mais ou menos o que ele fez, só ñ sei usar