如何使用Exchange Web Service Managed API获取公共文件夹日历（包括循环会议）

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　　在Exchange2010及其以后，MS提供了Managed API来调用Exchange的接口
　　下面代码演示了如何获取公共日历



ExchangeService service = new ExchangeService(ExchangeVersion.Exchange2010);
service.Credentials = new NetworkCredential("user", "password", "domain");
service.Url = new Uri(https://wwww.sohu.com/ews/exchange.asmx);
System.Net.ServicePointManager.ServerCertificateValidationCallback =
delegate(
Object obj,
X509Certificate certificate,
X509Chain chain,
SslPolicyErrors errors
)
{
return true;
};

//CAL
string _id = "AAEuAAAAAAAaRHOQqmYRzZvIAKoAL8RaAwBZaXl0Ei75TYF0WbP9Pt4/AAAFNPQsAAA=";

CalendarView view = new CalendarView(DateTime.Now.AddDays(-5), DateTime.Now.AddDays(5));
CalendarFolder cf = CalendarFolder.Bind(service, new FolderId(_id));
//CalendarFolder.(service);
//Folder inbox = Folder.Bind(service, WellKnownFolderName.Inbox);
// service.ClientRequestId = _id;
FindItemsResults<Appointment> findResults = cf.FindAppointments(view);

foreach (Appointment appointment in findResults.Items)
{
Response.Write(appointment.Start+"--" + appointment.Subject + "<br>");
}
　　
在上面代码里，有一个_id参数，他是日历的ID，下面代码演示了如何获取日历的ID
　　系统的入口是PublicFoldersRoot参数



ExchangeService service = new ExchangeService(ExchangeVersion.Exchange2010);
service.Credentials = new NetworkCredential("user", "password", "domain");
service.Url = new Uri("https://www.sohu.com/ews/exchange.asmx");
System.Net.ServicePointManager.ServerCertificateValidationCallback =
delegate(        
Object obj,        
X509Certificate certificate,        
X509Chain chain,        
SslPolicyErrors errors
)   
{
return true;
};


FolderView view = new FolderView(5);
view.PropertySet = new PropertySet(BasePropertySet.IdOnly);
view.PropertySet.Add(FolderSchema.DisplayName);
view.Traversal = FolderTraversal.Shallow;
FindFoldersResults findFolderResults = service.FindFolders(WellKnownFolderName.PublicFoldersRoot, view);
//find specific folder
foreach (Folder f in findFolderResults)
{
//show folderId of the folder "test"
// if (f.DisplayName == "Test")
Response.Write(f.DisplayName+"**"+f.Id.UniqueId+"<br>");
}