public SpreadsheetCellCustomInfo(CellName cellName)
 {
     this.CellName = cellName;
     this.DependentCells = new List<CellName>();
     this.ConsequentialCells = new List<CellName>();
     this.Formula = string.Empty;
     this.Value = string.Empty;
 }
 public SpreadsheetCellCustomInfo(CellName cellName)
 {
     this.CellName           = cellName;
     this.DependentCells     = new List <CellName>();
     this.ConsequentialCells = new List <CellName>();
     this.Formula            = string.Empty;
     this.Value = string.Empty;
 }