EWS API 2.0读取日历信息-读取内容注意事项

[from] http://www.cnblogs.com/love007/archive/2013/06/26/3156852.html

采用模拟账号的方式读取日历信息，注意下日历的内容读取(Body)读取。代码如下：（采用 EWS API 2.0版本）

1、读取内容前必须设置如下属性：否则会提示：You must load or assign this property before you can read its value  Body

如下：

 //*************************以为设置为读取内容，否则会提示：You must load or assign this property before you can read its value  Body

    PropertySet detailedPropertySet = new PropertySet(BasePropertySet.FirstClassProperties, AppointmentSchema.Recurrence);

    service.LoadPropertiesForItems(from Item item in findResults select item, detailedPropertySet);

 //******************************

设置后正常。

2、如果想读取内容的纯文本，目前Exchange server2010内的版本支持读取带HTML的内容。调用代码如下：

 //如果文本不为空

                        if (item.TextBody != null)

                        {

                            TextBody txtBody = item.TextBody;

                            //

                            info.BodyText = txtBody.Text;

                        }

调用后出现如下错误：

所以只能用正则表达式获取文本内容。 

附带正确代码：

#region//读入日历信息
        /// <summary>
        /// 读入日历信息
        /// </summary>
        /// <param name="config">配置参数</param>
        /// <param name="searchdtStart">开始时间</param>
        /// <param name="searchdtEnd">结束时间</param>
        /// <returns>返回列表</returns>
        private static List<CalendarInfo> GetCalendarList(EwsConfig config,DateTime searchdtStart,DateTime searchdtEnd)
        {
            //返回值
            List<CalendarInfo> CalendarInfoList = new List<CalendarInfo>();
            try
            {
                //读取未读邮件
                CalendarFolder calendarfolder = (CalendarFolder)Folder.Bind(service, WellKnownFolderName.Calendar);
                //如果不为空
                if (calendarfolder != null)
                {
                    //检索开始时间和结束时间
                    CalendarView calendarView = new CalendarView(searchdtStart, searchdtEnd);
                    //检索数据
                    FindItemsResults<Appointment> findResults = calendarfolder.FindAppointments(calendarView);
                    //*************************以为设置为读取内容，否则会提示：You must load or assign this property before you can read its value  Body
                    PropertySet detailedPropertySet = new PropertySet(BasePropertySet.FirstClassProperties, AppointmentSchema.Recurrence);
                    service.LoadPropertiesForItems(from Item item in findResults select item, detailedPropertySet);
                    //******************************
                    //返回
                    foreach (Appointment item in findResults.Items)
                    {
                        
                        //实体类
                        CalendarInfo info = new CalendarInfo();
                        //主题
                        info.Identity = item.ICalUid;
                        //来源
                        info.Source = "Exchange2010";
                        //主题
                        info.Subject = item.Subject;
                        //地区
                        info.Location = item.Location;
                        //开始时间
                        info.StartTime = item.Start.ToLocalTime();
                        //结束时间
                        info.EndTime = item.End.ToLocalTime();
                        //url
                        info.Url = item.WebClientReadFormQueryString;
                        //加入如下，表示读取内容，否则会提示如下：
                       
                        //HTML如果不为空
                        if (item.Body != null)
                        {
                            //html格式的内容
                            MessageBody body = item.Body;
                            //读取文本
                            info.BodyHtml = body.Text;
                            
                        }
                            //
                        //读取id
                        if (item.Id != null)
                        {
                            info.ItemIdType = new CalendarInfo.CalendarItemIdType { Id = item.Id.UniqueId, ChangeKey = item.Id.ChangeKey };
                        }
                        //加入到集合中去
                        CalendarInfoList.Add(info);
                    }
                }
            }
            catch (Microsoft.Exchange.WebServices.Data.ServiceResponseException ex)
            {
                throw ex;
            }
            //return
            return CalendarInfoList;
        }
        #endregion