2012-05-09 57 views
1

我是EWS Web服務的新用戶,可以處理不同的功能以使它們工作(FindItem,FindFolder,getItem等...) 但我無法解決這一個: 我試圖找到日曆文件夾中的約會的所有最新修改或創建。 我的第一個想法是在LastModificationDate擴展字段(PropertyId = 0x3008)上創建一個限制FindItemType請求並調用findItem方法。EWS - 在Exchange Web Services 2007中查找上次日曆修改

我嘗試下面的代碼,但結果始終是空的(aorit.Items == NULL):

_esb = new ExchangeServiceBinding(); 
_esb.Url = serviceUrl; 
_esb.Credentials = new NetworkCredential 
{     
    UserName = userName, 
    Password = password, 
    Domain = domain 
}; 

// snipped... 

FindItemType fit = new FindItemType 
{ 
    ItemShape = new ItemResponseShapeType 
    { 
     BaseShape = DefaultShapeNamesType.IdOnly 
    }, 
    ParentFolderIds = folderTypes, 
    Traversal = ItemQueryTraversalType.Shallow, 
    Restriction = new RestrictionType 
    { 
     Item = new IsGreaterThanOrEqualToType 
     { 
      FieldURIOrConstant = new FieldURIOrConstantType 
      { 
       Item = new ConstantValueType { Value = lastModifiedDateSearched.ToUniversalTime().ToString("u") } 
      }, 
      Item = new PathToExtendedFieldType 
      { 
       DistinguishedPropertySetIdSpecified = true, 
       DistinguishedPropertySetId = DistinguishedPropertySetType.Appointment, 
       PropertyType = MapiPropertyTypeType.SystemTime, 
       PropertyId = 0x3008, 
       PropertyIdSpecified = true, 
      } 
     } 
    } 
}; 

FindItemResponseType response = _esb.FindItem(fit); 

List<ItemIdType> res = new List<ItemIdType>(); 
foreach (FindItemResponseMessageType firmt in  response.ResponseMessages.Items.Where(c => c.IsNotNull())) 
{ 
    if (firmt.RootFolder.IsNotNull()) 
    { 
     ArrayOfRealItemsType aorit = firmt.RootFolder.Item as ArrayOfRealItemsType; 
     if (aorit != null && aorit.Items.IsNotNull()) 
     { 
      foreach (ItemType item in aorit.Items) 
      { 
       if (item.ItemId.IsNotNull()) 
       { 
        res.Add(item.ItemId); 
       } 
      } 
     } 
    } 
} 

有誰知道,如果我的查詢似乎是正確的?我是否用正確的方式來做到這一點? 感謝您的幫助。

回答

2

挖掘和挖掘後,我終於找到了問題。 PathToExtendedFieldType沒有被正確聲明。應該是簡單的:

new PathToExtendedFieldType 
{ 
    PropertyType = MapiPropertyTypeType.SystemTime, 
    PropertyTag = "0x3008" 
} 
相關問題