 悬赏园豆:20
                [待解决问题]
                悬赏园豆:20
                [待解决问题] 
            
                 
          Outlook.Inspector currWind = Globals.ThisAddIn.Application.ActiveInspector();
            Outlook.AppointmentItem app = (Outlook.AppointmentItem)currWind.CurrentItem;
            app.UserProperties.Add("testaddfiled", Outlook.OlUserPropertyType.olText, true, Type.Missing);
            app.UserProperties["testaddfiled"].Value = "Green";
            app.Subject = "测试自定义添加字段";
            app.Save();
这样添加不成功