LayoutFarm.WebDom.DomElement.AttachEventOnMouseLostFocus C# (CSharp) Method

        public void AttachEventOnMouseLostFocus(HtmlEventHandler handler)
        {
            this.evhMouseLostFocus += handler;
        }

        public DomElement GetPresentationDomNode(DomElement hostNode)
        {
            if (pnode != null) return pnode;
            //-----------------------------------
            var doc = hostNode.OwnerDocument;
            this.pnode = doc.CreateElement("div");
            pnode.AddChild("img", item_icon =>
            {
                menuIcon = item_icon;
                menuIcon.AttachMouseDownEvent(e =>
                {
                    //****
                    this.MaintenanceParentOpenState();
                    if (this.IsOpened)
                    {
                        this.Close();
                    }
                    else
                    {
                        this.Open();
                    }
                    e.StopPropagation();
                });
                menuIcon.AttachMouseUpEvent(e =>
                {
                    this.UnmaintenanceParentOpenState();
                    e.StopPropagation();
                });
                menuIcon.AttachEventOnMouseLostFocus(e =>
                {
                    if (!this.MaintenaceOpenState)
                    {
                        this.CloseRecursiveUp();
                    }
                });
            });
            pnode.AddChild("span", content =>
            {
                if (menuItemText != null)
                {
                    pnode.AddTextContent(this.menuItemText);
                }
            });
            //--------------------------------------------------------
            //create simple menu item box 

            if (childItems != null)
            {
                floatPart = new MenuBox(400, 200);
                int j = childItems.Count;
                for (int i = 0; i < j; ++i)
                {
                    floatPart.AddChildBox(childItems[i]);
                }
            }
            return pnode;
        }