public GXObisValueItemForm(List<GXObisValueItem> items, GXObisValueItem item)
 {
     InitializeComponent();
     Items = items;
     Target = item;
     UIValueTB.Text = Target.UIValue;
     if (Target.Value != null)
     {
         DeviceValueTB.Text = Target.Value.ToString();
     }
 }
 void UpdateObisValueText(ListViewItem item, GXObisValueItem obj)
 {
     item.Text = obj.Value + " / " + obj.UIValue;
 }