public ItemSetupForm(Connection aConnectionS7IsoTCP, DataItem aItemS7IsoTCP)
        {
            mConnectionS7IsoTCP = aConnectionS7IsoTCP;
            InitializeComponent();

            MemoryType  = aItemS7IsoTCP.mMemoryType;
            DataType    = aItemS7IsoTCP.DataType;
            DB          = aItemS7IsoTCP.DB;
            Bit         = aItemS7IsoTCP.Bit;
            Byte        = aItemS7IsoTCP.Byte;
            Signed      = aItemS7IsoTCP.Signed;
            FloatingP   = aItemS7IsoTCP.FloatingP;
            Length      = aItemS7IsoTCP.Length;

            mConnectionS7IsoTCP.ConnectionState += new EventHandler(onChange);
            updateForm();
        }