Lock an entire row

Currently I have this code, but it's not working. I'm not sure what to use to lock an entire row. Seems like this would do it.

Private myCheckbox_Click()
    If myCheckbox.Value = True Then
        Me.Range("C205:I205").EntireRow.Locked = False
    Else
        Me.Range("C205:I205").EntireRow.Locked = True
    End If
End Sub