/// <summary>
        ///     Displays the variable value
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="args"></param>
        public void DisplayHandler(object sender, EventArgs args)
        {
            Function function = Item.Value as Function;

            if (function != null)
            {
                GraphView.GraphView view = new GraphView.GraphView();
                GuiUtils.MdiWindow.AddChildWindow(view);
                view.Functions.Add(function);
                view.Refresh();
            }
            else
            {
                StructureEditor.Window window = new StructureEditor.Window();
                window.SetVariable(Item);

                if (GuiUtils.MdiWindow.DataDictionaryWindow != null)
                {
                    GuiUtils.MdiWindow.AddChildWindow(window);
                    window.Show(GuiUtils.MdiWindow.DataDictionaryWindow.Pane, DockAlignment.Right, 0.20);
                }
            }
        }