anchor.diff:    public
       constructor Create(Owner: TComponent); override;
       destructor Destroy; override;
  -    property Columns: TStrings read FColumns write SetColumns;
       property DataSource: IDataSource read FDataSource write SetDataSource;
       property PageSize: Integer read FPageSize write SetPageSize default 100;
       property PageIndex: Integer read FPageIndex write SetPageIndex default -1;
  
positive.code:   TVisualGrid = class(TCustomVisualGrid)
    published
      property Align;
      property Columns;
      property PageSize;
  
      property OnDrawVisualCell;
  
negative.code: 
  destructor TCustomVisualGrid.Destroy;
  begin
    inherited;
  end;
  
  