[英]Extract Exchange 2007 Public Calendar Appointments using Exchange Web Services API
We have a public calendar for our company set up in an Exchange 2007 Public Folder. 我们在Exchange 2007公用文件夹中为我们的公司设置了公用日历。 I am able to retrieve my personal calendar appointments for the current day using the code below.
我可以使用以下代码检索当天的个人日历约会。 I have searched high and low online and I cannot find one example of someone retrieving calendar information from a Public Folder calendar.
我已经在网上搜索了高低两档,但找不到一个有人从“公用文件夹”日历中检索日历信息的示例。
It seems like it should be doable, but I cannot for the life of me get it working. 看起来这应该可行,但是我无法一辈子都可以使用它。 How can I modify the code below to access the calendar?
如何修改下面的代码以访问日历? I am not interested in creating any appointments through asp.net, just retrieving a simple list.
我对通过asp.net创建任何约会不感兴趣,只是检索一个简单列表。 I am open to any other suggestions as well.
我也欢迎其他任何建议。 Thanks.
谢谢。
ADDED BOUNTY 额外奖励
- I can't be the only person that ever needed to do this. -我不可能是唯一需要这样做的人。 Let's get this problem solved for future generations.
让我们为子孙后代解决这个问题。
UPDATED AGAIN DUE TO IGNORANCE 由于无知而再次更新
- I failed to mention that the project I am working on is .NET 2.0 (very important don't you think?). -我没有提到我正在从事的项目是.NET 2.0(非常重要,您认为吗?)。
* ADDED MY CODE SOLUTION BELOW * *下面添加了我的代码解决方案*
- I have replaced my original code example with the code that ended up working. -我将原来的代码示例替换为最终可用的代码。 Many thanks to Oleg for providing the code to find the public folder, which was the hardest part.. I have modified the code using the example from here http://msexchangeteam.com/archive/2009/04/21/451126.aspx to use the simpler FindAppointments method.
非常感谢Oleg提供的代码来查找公用文件夹,这是最难的部分。.我使用此处的示例修改了代码, 网址为http://msexchangeteam.com/archive/2009/04/21/451126.aspx使用更简单的FindAppointments方法。
This simple example returns an html string with the appointments, but you can use it as a base to customize as needed. 这个简单的示例返回带有约会的html字符串,但是您可以将其用作根据需要进行自定义的基础。 You can see our back and forth under his answer below.
您可以在下面的回答中看到我们的来回信息。
using System;
using Microsoft.Exchange.WebServices.Data;
using System.Net;
namespace ExchangePublicFolders
{
public class Program
{
public static FolderId FindPublicFolder(ExchangeService myService, FolderId baseFolderId,
string folderName)
{
FolderView folderView = new FolderView(10, 0);
folderView.OffsetBasePoint = OffsetBasePoint.Beginning;
folderView.PropertySet = new PropertySet(FolderSchema.DisplayName, FolderSchema.Id);
FindFoldersResults folderResults;
do
{
folderResults = myService.FindFolders(baseFolderId, folderView);
foreach (Folder folder in folderResults)
if (String.Compare(folder.DisplayName, folderName, StringComparison.OrdinalIgnoreCase) == 0)
return folder.Id;
if (folderResults.NextPageOffset.HasValue)
folderView.Offset = folderResults.NextPageOffset.Value;
}
while (folderResults.MoreAvailable);
return null;
}
public static string MyTest()
{
ExchangeService myService = new ExchangeService(ExchangeVersion.Exchange2007_SP1);
myService.Credentials = new NetworkCredential("USERNAME", "PASSWORD", "DOMAIN");
myService.Url = new Uri("https://MAILSERVER/ews/exchange.asmx");
Folder myPublicFoldersRoot = Folder.Bind(myService, WellKnownFolderName.PublicFoldersRoot);
string myPublicFolderPath = @"PUBLIC_FOLDER_CALENDAR_NAME";
string[] folderPath = myPublicFolderPath.Split('\\');
FolderId fId = myPublicFoldersRoot.Id;
foreach (string subFolderName in folderPath)
{
fId = Program.FindPublicFolder(myService, fId, subFolderName);
if (fId == null)
{
return string.Format("ERROR: Can't find public folder {0}", myPublicFolderPath);
}
}
Folder folderFound = Folder.Bind(myService, fId);
if (String.Compare(folderFound.FolderClass, "IPF.Appointment", StringComparison.Ordinal) != 0)
{
return string.Format("ERROR: Public folder {0} is not a Calendar", myPublicFolderPath);
}
CalendarFolder AK_Calendar = CalendarFolder.Bind(myService, fId, BasePropertySet.FirstClassProperties);
FindItemsResults<Appointment> AK_appointments = AK_Calendar.FindAppointments(new CalendarView(DateTime.Now,DateTime.Now.AddDays(1)));
string rString = string.Empty;
foreach (Appointment AK_appoint in AK_appointments)
{
rString += string.Format("Subject: {0}<br />Date: {1}<br /><br />", AK_appoint.Subject, AK_appoint.Start);
}
return rString;
}
}
}
Like promised here is a code example. 像这里承诺的是一个代码示例。 I used the Microsoft Exchange Web Services (EWS) Managed API 1.0 and recommend you to do the same.
我使用了Microsoft Exchange Web服务(EWS)托管API 1.0 ,建议您这样做。 The most comments I included in the code
我在代码中包含的最多评论
using System;
using Microsoft.Exchange.WebServices.Data;
using System.Net;
namespace ExchangePublicFolders {
class Program {
static FolderId FindPublicFolder (ExchangeService myService, FolderId baseFolderId,
string folderName) {
// We will search using paging. We will use page size 10
FolderView folderView = new FolderView (10,0);
folderView.OffsetBasePoint = OffsetBasePoint.Beginning;
// we will need only DisplayName and Id of every folder
// se we'll reduce the property set to the properties
folderView.PropertySet = new PropertySet (FolderSchema.DisplayName,
FolderSchema.Id);
FindFoldersResults folderResults;
do {
folderResults = myService.FindFolders (baseFolderId, folderView);
foreach (Folder folder in folderResults)
if (String.Compare (folder.DisplayName, folderName, StringComparison.OrdinalIgnoreCase) == 0)
return folder.Id;
if (folderResults.NextPageOffset.HasValue)
// go to the next page
folderView.Offset = folderResults.NextPageOffset.Value;
}
while (folderResults.MoreAvailable);
return null;
}
static void MyTest () {
// IMPORTANT: ExchangeService is NOT thread safe, so one should create an instance of
// ExchangeService whenever one needs it.
ExchangeService myService = new ExchangeService (ExchangeVersion.Exchange2007_SP1);
myService.Credentials = new NetworkCredential ("MyUser@corp.local", "myPassword00");
myService.Url = new Uri ("http://mailwebsvc-t.services.local/ews/exchange.asmx");
// next line is very practical during development phase or for debugging
myService.TraceEnabled = true;
Folder myPublicFoldersRoot = Folder.Bind (myService, WellKnownFolderName.PublicFoldersRoot);
string myPublicFolderPath = @"OK soft GmbH (DE)\Gruppenpostfächer\_Template - Gruppenpostfach\_Template - Kalender";
string[] folderPath = myPublicFolderPath.Split('\\');
FolderId fId = myPublicFoldersRoot.Id;
foreach (string subFolderName in folderPath) {
fId = FindPublicFolder (myService, fId, subFolderName);
if (fId == null) {
Console.WriteLine ("ERROR: Can't find public folder {0}", myPublicFolderPath);
return;
}
}
// verify that we found
Folder folderFound = Folder.Bind (myService, fId);
if (String.Compare (folderFound.FolderClass, "IPF.Appointment", StringComparison.Ordinal) != 0) {
Console.WriteLine ("ERROR: Public folder {0} is not a Calendar", myPublicFolderPath);
return;
}
CalendarFolder myPublicFolder = CalendarFolder.Bind (myService,
//WellKnownFolderName.Calendar,
fId,
PropertySet.FirstClassProperties);
if (myPublicFolder.TotalCount == 0) {
Console.WriteLine ("Warning: Public folder {0} has no appointment. We try to create one.", myPublicFolderPath);
Appointment app = new Appointment (myService);
app.Subject = "Writing a code example";
app.Start = new DateTime (2010, 9, 9);
app.End = new DateTime (2010, 9, 10);
app.RequiredAttendees.Add ("oleg.kiriljuk@ok-soft-gmbh.com");
app.Culture = "de-DE";
app.Save (myPublicFolder.Id, SendInvitationsMode.SendToNone);
}
// We will search using paging. We will use page size 10
ItemView viewCalendar = new ItemView (10);
// we can include all properties which we need in the view
// If we comment the next line then ALL properties will be
// read from the server. We can see there in the debug output
viewCalendar.PropertySet = new PropertySet (ItemSchema.Subject);
viewCalendar.Offset = 0;
viewCalendar.OffsetBasePoint = OffsetBasePoint.Beginning;
viewCalendar.OrderBy.Add (ContactSchema.DateTimeCreated, SortDirection.Descending);
FindItemsResults<Item> findResultsCalendar;
do {
findResultsCalendar = myPublicFolder.FindItems (viewCalendar);
foreach (Item item in findResultsCalendar) {
if (item is Appointment) {
Appointment appoint = item as Appointment;
Console.WriteLine ("Subject: \"{0}\"", appoint.Subject);
}
}
if (findResultsCalendar.NextPageOffset.HasValue)
// go to the next page
viewCalendar.Offset = findResultsCalendar.NextPageOffset.Value;
}
while (findResultsCalendar.MoreAvailable);
}
static void Main (string[] args) {
MyTest();
}
}
}
You should update the string myPublicFolderPath
to the value with your public calender folder. 您应该使用公共日历文件夹将字符串
myPublicFolderPath
更新为该值。 I set myService.TraceEnabled = true
which produce long output with debug information. 我设置
myService.TraceEnabled = true
会产生带有调试信息的长输出。 You should of cause remove the line for production. 您应该删除生产线。
UPDATED : Some additional links you could find in Create new calendar system support in Exchange OWA . 更新 : 在Exchange OWA中的“ 创建新的日历系统支持”中可以找到一些其他链接。 If you not yet seen the videos and you want to use Exchange Web Services I would recommend you to watch there.
如果您尚未看过视频,并且想使用Exchange Web Services,建议您在此观看。 It could save your time in the future.
这样可以节省您将来的时间。
I did similar thing for Exchange 2003, but using WebDAV Search method ( http://msdn.microsoft.com/en-us/library/aa143053%28v=EXCHG.65%29.aspx ). 我为Exchange 2003做过类似的事情,但是使用WebDAV搜索方法( http://msdn.microsoft.com/en-us/library/aa143053%28v=EXCHG.65%29.aspx )。
http://geekswithblogs.net/cskardon/archive/2008/12/01/hunting-those-elusive-public-folders-using-exchange-web-services-part.aspx may help. http://geekswithblogs.net/cskardon/archive/2008/12/01/hunting-those-elusive-public-folders-using-exchange-web-services-part.aspx可能会有所帮助。
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