如何使用Exchange Web Service获取日历（包含循环会议）

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　　本文介绍如何使用EWS代理类调用Exchange的日历
　　（1）首先生成代理类
　　



ExchangeServiceBinding _ExchangeBinding = new ExchangeServiceBinding();
_ExchangeBinding.Credentials = new NetworkCredential(username, password, domain);
_ExchangeBinding.Url = Helper.GetWebconfig("exchangewebservice");
　　
　　
      
　　（2）定义请求的属性
　　请注意：在定义请求属性时，一定要定义CalendarViewType属性，默认的日历返回是不含循环日历的，
　　如果需要返回循环会议请求，就需要等译CalendarView



FindItemType findItemRequest = new FindItemType();
ItemResponseShapeType itemProperties = new ItemResponseShapeType();   
itemProperties.BaseShape = DefaultShapeNamesType.AllProperties;         
findItemRequest.ItemShape = itemProperties;
//我们查找的是日历      
DistinguishedFolderIdType[] folderIDs = { new DistinguishedFolderIdType { Id = DistinguishedFolderIdNameType.calendar } };         
  findItemRequest.ParentFolderIds = folderIDs;
//增加搜索的日历范围，红色代码要饭服务器返回循环会议

CalendarViewType cldview = new CalendarViewType();           
cldview.StartDate = dt.AddDays(-2);         
cldview.EndDate = dt.AddDays(2);
findItemRequest.Item = cldview;                     
findItemRequest.Traversal = ItemQueryTraversalType.Shallow;
　　
　　（3）定义服务器返回的数据属性           
　　



   FindItemResponseType findItemResponse = _ExchangeBinding.FindItem(findItemRequest);

ArrayOfResponseMessagesType responseMessages = findItemResponse.ResponseMessages;
ResponseMessageType[] responseMessage = responseMessages.Items;

foreach (ResponseMessageType rmt in responseMessage)
{
#region 结果

FindItemResponseMessageType msgType = (rmt as FindItemResponseMessageType);
if (msgType.RootFolder == null)
continue;

FindItemParentType parentType = msgType.RootFolder;

object obj = parentType.Item;
if (obj is ArrayOfRealItemsType)
{
ArrayOfRealItemsType items = (obj as ArrayOfRealItemsType);
if (items != null)
{
if (items.Items != null)
{
foreach (ItemType item in items.Items)
{
CalendarItemType calItem = item as CalendarItemType;
DataRow row = table.NewRow();
row["roomid"] = 1;
row["guid"] = guid;
row["begintime"] = calItem.Start.AddHours(timezone);
row["endtime"] = calItem.End.AddHours(timezone);
row["location"] = calItem.Location;
row["title"] = calItem.Subject;
row["displayname"] = calItem.Organizer.Item.Name;
if (row["endtime"].ToString() != "")
{
table.Rows.Add(row);
}
}
}
}
}
#endregion
}