Exchange Webservice託管API - 通過擴展屬性查找項目

Question

我試圖使用EWS約會的擴展屬性，但我似乎無法再次找到約會。集合屬性部分等於在這個問題上所示：

How to Update an Appointment from Exchange Web Service Managed API 2.0 in ASP.NET

當我嘗試檢索約會，我都遵循這些例子：

http://msdn.microsoft.com/en-us/uc14trainingcourse_5l_topic3#_Toc254008129 http://msdn.microsoft.com/en-us/library/exchange/dd633697(v=exchg.80).aspx

但我在查找時從未得到任何返回的約會。

下面是查找代碼：

 ItemView view = new ItemView(10); 

     // Get the GUID for the property set. 
     Guid MyPropertySetId = new Guid("{" + cGuid + "}"); 

     // Create a definition for the extended property. 
     ExtendedPropertyDefinition extendedPropertyDefinition = 
      new ExtendedPropertyDefinition(MyPropertySetId, "AppointmentID", MapiPropertyType.String); 

     view.PropertySet = 
     new PropertySet(
       BasePropertySet.IdOnly, 
       ItemSchema.Subject, 
       AppointmentSchema.Start, 
       AppointmentSchema.End, extendedPropertyDefinition); 

     SearchFilter filter = new SearchFilter.Exists(extendedPropertyDefinition); 

     FindItemsResults<Item> findResults = service.FindItems(WellKnownFolderName.Inbox, filter, 
      view); 

任何幫助是極大的讚賞。

編輯： 當我試圖創建屬性，如文檔顯示：

http://msdn.microsoft.com/en-us/library/exchange/dd633654(v=exchg.80).aspx

它，因爲它的一個GUID IM作爲增加屬性值失敗。 ： -/

再次編輯： 只是試圖讓今天所有的約會，並從我剛剛創建的任命獲得的財產，和它說的一樣，我存儲，而不{}，所以它必須是與過濾器的東西。

編輯再次* 它具有財產以後做

ExtendedPropertyDefinition extendedProperty = new ExtendedPropertyDefinition(

如果我使用：

new ExtendedPropertyDefinition(
       DefaultExtendedPropertySet.Appointment, 
       "AppointmentID", 
       MapiPropertyType.String); 

它發現所有性質的約會，但如果我搜索一個特定一個：

Guid MyPropertySetId = new Guid("{" + cGuid + "}"); 

ExtendedPropertyDefinition extendedProperty = 
      new ExtendedPropertyDefinition(
       MyPropertySetId, 
       "AppointmentID", 
       MapiPropertyType.String); 

然後沒有發現。

Answer 1

這裏有一個samplecode如何創建具有的自訂預約，並在保存後發現：

ExchangeService service = new ExchangeService(ExchangeVersion.Exchange2007_SP1); 
     service.AutodiscoverUrl("someone@somewhere.com"); 

     ExtendedPropertyDefinition def = new ExtendedPropertyDefinition(DefaultExtendedPropertySet.PublicStrings, "AppointmenId", MapiPropertyType.String); 

     Guid testid = Guid.NewGuid(); 

     Appointment appointment = new Appointment(service); 
     appointment.Subject = "Test"; 
     appointment.Start = DateTime.Now.AddHours(1); 
     appointment.End = DateTime.Now.AddHours(2); 
     appointment.SetExtendedProperty(def, testid.ToString()); 
     appointment.Save(WellKnownFolderName.Calendar); 

     SearchFilter filter = new SearchFilter.IsEqualTo(def, testid.ToString()); 

     FindItemsResults<Item> fir = service.FindItems(WellKnownFolderName.Calendar, filter, new ItemView(10)); 

希望這可以幫助你......

Answer 2

您在收件箱中搜索約會。在那裏你永遠不會找到他們。嘗試在日曆中進行搜索。

Answer 3

下面是將guid作爲擴展屬性並根據guid獲取約會的示例。

private static readonly PropertyDefinitionBase AppointementIdPropertyDefinition = new ExtendedPropertyDefinition(DefaultExtendedPropertySet.PublicStrings, "AppointmentID", MapiPropertyType.String); 
public static PropertySet PropertySet = new PropertySet(BasePropertySet.FirstClassProperties, AppointementIdPropertyDefinition); 


//Setting the property for the appointment 
public static void SetGuidForAppointement(Appointment appointment) 
{ 
    try 
    { 
     appointment.SetExtendedProperty((ExtendedPropertyDefinition)AppointementIdPropertyDefinition, Guid.NewGuid().ToString()); 
     appointment.Update(ConflictResolutionMode.AlwaysOverwrite, SendInvitationsOrCancellationsMode.SendToNone); 
    } 
    catch (Exception ex) 
    { 
     // logging the exception 
    } 
} 

//Getting the property for the appointment 
public static string GetGuidForAppointement(Appointment appointment) 
{ 
    var result = ""; 
    try 
    { 
     appointment.Load(PropertySet); 
     foreach (var extendedProperty in appointment.ExtendedProperties) 
     { 
      if (extendedProperty.PropertyDefinition.Name == "AppointmentID") 
      { 
       result = extendedProperty.Value.ToString(); 
      } 
     } 
    } 
    catch (Exception ex) 
    { 
    // logging the exception 
    } 
    return result; 
}