void BindingProperties()
        {
            // 初始化
            portName = GraphProcessorEditorUtility.GetDisplayName(Model.FieldName);
            tooltip  = Model.Tooltip;
            if (orientation == Orientation.Vertical && string.IsNullOrEmpty(Model.Tooltip))
            {
                Model.Tooltip = GraphProcessorEditorUtility.GetDisplayName(Model.FieldName);
            }

            Model.BindingProperty <string>(nameof(Model.PortName), OnPortNameChanged);
            Model.BindingProperty <string>(nameof(Model.Tooltip), OnToolTipChanged);
            Model.BindingProperty <Color>(nameof(Model.PortColor), OnColorChanged);
        }
 void OnPortNameChanged(string _name)
 {
     portName = GraphProcessorEditorUtility.GetDisplayName(_name);
 }