Sets or returns whether the current cell is the first cell in a group of vertically merged cells. The first cell will contain all the content.

public boolean FirstVerticalMerged{ get; set; }

Public Property FirstVerticalMerged() As Boolean

          //--- Return FirstVerticalMerged
          bool merged = cell.FirstVerticalMerged;

          //--- Set FirstVerticalMerged
          cell.FirstVerticalMerged = true;
        

          '--- Return FirstVerticalMerged
          Dim merged As Boolean = cell.FirstVerticalMerged

          '--- Set FirstVerticalMerged
          cell.FirstVerticalMerged = True