protected override object OnEditValue(System.ComponentModel.ITypeDescriptorContext context, IServiceProvider provider, System.Windows.Forms.Design.IWindowsFormsEditorService service, object value)
        {
            IWithProject mc = context.Instance as IWithProject;

            if (mc != null)
            {
                if (mc.Project == null)
                {
                    MathNode.Log(TraceLogClass.GetForm(provider), new DesignerException("Project not set for {0} [{1}]", mc, mc.GetType()));
                }
                else
                {
                    GetterClass          val      = value as GetterClass;
                    System.Drawing.Point curPoint = System.Windows.Forms.Cursor.Position;
                    rc.X = curPoint.X;
                    rc.Y = curPoint.Y;
                    DlgMethod dlg = val.CreateMethodEditor(rc);
                    try
                    {
                        dlg.SetNameReadOnly();
                        dlg.LoadMethod(val, EnumParameterEditType.ReadOnly);
                        dlg.Text = val.ToString();
                        if (service.ShowDialog(dlg) == DialogResult.OK)
                        {
                            value = val;
                            ILimnorDesignerLoader l = LimnorProject.ActiveDesignerLoader as ILimnorDesignerLoader;
                            if (l != null)
                            {
                                //save the property and hence save the getter
                                DesignUtil.SaveCustomProperty(LimnorProject.ActiveDesignerLoader.Node, l.Writer, val.Property);
                                //save actions
                                List <IAction> actions = val.GetActions();
                                if (actions != null)
                                {
                                    foreach (IAction a in actions)
                                    {
                                        l.GetRootId().SaveAction(a, l.Writer);
                                    }
                                }
                                LimnorProject.ActiveDesignerLoader.NotifyChanges();
                            }
                        }
                    }
                    catch (Exception err)
                    {
                        MathNode.Log(TraceLogClass.GetForm(provider), err);
                    }
                    finally
                    {
                        val.ExitEditor();
                    }
                }
            }
            return(value);
        }