How do I … create a Custom DataGridViewColumn and DataGridViewCell

Uses may include:

• Storing extra data in a cell
• Controlling SortMode for all columns

Public Class DataGridViewPlanColumn
    Inherits DataGridViewTextBoxColumn

    Sub New()
        Me.CellTemplate = New DataGridViewPlanCell
        Me.SortMode = DataGridViewColumnSortMode.NotSortable
    End Sub

End Class

Public Class DataGridViewPlanCell
    Inherits DataGridViewTextBoxCell

    Property WO As Nullable(Of Integer)
End Class