UpdateCount property. If
UpdateCount is larger than 0, updates such as component redraw, calculations, event calls etc. will be postponed until EndUpdate method is called and UpdateCount = 0.
procedure BeginUpdate(Options: TNxUpdateOptions = [uoScrollBar]);
try // Only events and scrollbars will be processed NextGrid61.BeginUpdate([uoEvents, uoScrollBar]); // Time consuming routine for i := 0 to NextGrid61.RowCount - 1 do begin // code here end; finally NextGrid61.EndUpdate; // Repaint and recount end;