This .NET class wraps the CellState ObjectARX enum. 

These values specify the various states of the data in a cell.

Public Enum CellStates
  ContentLocked = 1
  ContentModifiedAfterUpdate = 8
  ContentReadOnly = 2
  FormatLocked = &H10
  FormatModifiedAfterUpdate = &H40
  FormatReadOnly = &H20
  Linked = 4
  None = 0
End Enum

public enum CellStates {
  ContentLocked = 1,
  ContentModifiedAfterUpdate = 8,
  ContentReadOnly = 2,
  FormatLocked = 0x10,
  FormatModifiedAfterUpdate = 0x40,
  FormatReadOnly = 0x20,
  Linked = 4,
  None = 0
}