This .NET class wraps the AcDb::GridProperty ObjectARX enum. These values describe the grid lines of a table.

Public Enum GridProperties
  Color = 8
  DoubleLineSpacing = &H20
  Invalid = 0
  LineStyle = 1
  Linetype = 4
  LineWeight = 2
  Visibility = &H10
End Enum

public enum GridProperties {
  Color = 8,
  DoubleLineSpacing = 0x20,
  Invalid = 0,
  LineStyle = 1,
  Linetype = 4,
  LineWeight = 2,
  Visibility = 0x10
}