Как научить VCL делать Refresh для запросов правильно

procedure RefreshQuery(Query: TQuery; F: boolean);
var
  B: TBookMark;
begin
  with Query do
    if Query.Active then
    begin
      B := GetBookMark;
      try
        Close;
        Unprepare;
        {Если не поставить этого, то если используется select
        SP, то иногда последующая операция вешает сервер.
        Кто скажет почему?!}
        Active := True;
        if F then
        begin
          try
            GotoBookMark(B)
          except
            on EDatabaseError do
              First;
          end
        end
        else
          First;
      finally
        FreeBookmark(B);
      end;
    end;
end;

function GetFieldNamesStr(DataSet: TDataSet): string;
var
  I: Integer;
begin
  Result := '';
  with DataSet do
    for I := 0 to FieldCount - 1 do
    begin
      Result := Result + Fields[I].FieldName + ';';
    end;
end;

procedure DoRefreshQuery(Query: TQuery; KeyFields: string; BookMarkSearch:
  Boolean);
var
  Fields: TList;
  KeyValues: Variant;
  KeyNames: string;
  Bmk: TBookmark;
  I: Integer;
  BookmarkFound: Boolean;
  CanLocate: Boolean;
begin
  Fields := TList.Create;
  if KeyFields = '' then
    KeyFields := GetFieldNamesStr(Query);
  try
    Query.GetFieldList(Fields, KeyFields);
    for I := Fields.Count - 1 downto 0 do
      with TField(Fields[I]) do
        if Calculated or Lookup then
          Fields.Delete(I);
    CanLocate := Fields.Count > 0;
    if CanLocate then
    begin
      if Fields.Count = 1 then
        KeyValues := TField(Fields[0]).Value
      else
      begin
        KeyValues := VarArrayCreate([0, Fields.Count - 1], varVariant);
        KeyValues[0] := TField(Fields[0]).Value;
      end;
      KeyNames := TField(Fields[0]).FieldName;
      for I := 1 to Fields.Count - 1 do
      begin
        KeyNames := KeyNames + ';' + TField(Fields[I]).FieldName;
        KeyValues[I] := TField(Fields[I]).Value;
      end;
    end;
  finally
    Fields.Free;
  end;
  with Query do
  begin
    Bmk := nil;
    DisableControls;
    try
      BookmarkFound := False;
      if BookMarkSearch then
        Bmk := GetBookmark;
      Close;
      Open;
      if Assigned(Bmk) then
      try
        GotoBookMark(Bmk);
        BookmarkFound := True;
      except
      end;
      if not BookmarkFound and CanLocate then
        Locate(KeyNames, KeyValues, []);
    finally
      EnableControls;
      Screen.Cursor := crDefault;
      FreeBookmark(Bmk);
    end;
  end;
end;

procedure TQuery.RefreshParams;
var
  DataSet: TDataSet;
begin
  DisableControls;
  try
    if FDataLink.DataSource <> nil then
    begin
      DataSet := FDataLink.DataSource.DataSet;
      if DataSet <> nil then
        if DataSet.Active and (DataSet.State <> dsSetKey) then
          DoRefreshQuery(Self, GetFieldNamesStr(Self), False);
    end;
  finally
    EnableControls;
  end;
end;