ATMLCommonLibrary.controls.signal.SignalPartsListControl.EditSignalPart C# (CSharp) Method

        private void EditSignalPart()
        {
            if (SelectedItems.Count > 0)
            {
                object sft = SelectedItems[0].Tag;
                var form = new SignalFunctionTypeForm();
                form.SignalFunctionType = sft;
                SetAvailableParts(form);
                if (DialogResult.OK == form.ShowDialog())
                {
                    sft = form.SignalFunctionType;
                    SelectedItems[0].Tag = sft;
                    var signalType = sft as SignalFunctionType;
                    var el = sft as XmlElement;
                    if (signalType != null)
                    {
                        SelectedItems[0].SubItems[0].Text = signalType.GetType().Name;
                        SelectedItems[0].SubItems[1].Text = signalType.name;
                        SelectedItems[0].SubItems[2].Text = signalType.type;
                        SelectedItems[0].SubItems[3].Text = signalType.In;
                    }
                    else if (el != null)
                    {
                        var item = new ListViewItem(el.LocalName);
                        item.SubItems.Add((el.HasAttribute("name"))
                            ? el.GetAttribute("name")
                            : "");
                        item.SubItems.Add((el.HasAttribute("type"))
                            ? el.GetAttribute("type")
                            : "");
                        item.SubItems.Add((el.HasAttribute("In"))
                            ? el.GetAttribute("In")
                            : "");
                        item.Tag = el;
                    }
                }
            }
        }