public MainViewModel()
{
cellList.AddReference(ref cell1);
cellList.AddReference(ref cell2);
cellList.AddReference(ref cell3);
cellList.AddReference(ref cell4);
cellList.AddReference(ref cell5);
cellList.AddReference(ref cell6);
cellList.AddReference(ref cell7);
cellList.AddReference(ref cell8);
cellList.AddReference(ref cell9);
cellList.AddReference(ref cell10);
cellList.AddReference(ref cell11);
cellList.AddReference(ref cell12);
cellList.AddReference(ref cell13);
cellList.AddReference(ref cell14);
cellList.AddReference(ref cell15);
cellList.AddReference(ref cell16);
}