NameSpace.CompareEntryIDs 方法 (Outlook)

  • 项目

返回一个 布尔 值，该值指示是否两个条目 ID 值是指同一 Outlook 项目。

语法

expression。 CompareEntryIDs( _FirstEntryID_ , _SecondEntryID_ )

表达 返回 NameSpace 对象的表达式。

参数

名称 必需/可选 数据类型 说明
FirstEntryID 必需 String 要比较的第一个条目 ID。
SecondEntryID 必需 String 要比较的第二个条目 ID。

返回值

如此 如果条目 ID 的值是指同一 Outlook 项目;否则为 假 。

备注

不能直接对条目标识符进行比较，因为一个对象可以由两个不同的二进制值表示。 使用此方法可以确定两个条目标识符是否代表同一个对象。

示例

(VBA) 示例下面的 Visual Basic for Applications 比较与指定的 AppointmentItem 对象管理器指定的 收件人 对象的项标识符关联的项标识符使用 CompareEntryIDs 方法，并且如果管理器和指定的收件人表示同一个用户，则返回 True 。

Function IsRecipientTheOrganizer( _ 
 
 ByVal Appt As Outlook.AppointmentItem, _ 
 
 ByVal Recipient As Outlook.Recipient) As Boolean 
 
 
 
 Dim objAddrEntry As Outlook.AddressEntry 
 
 Dim objPropAc As Outlook.PropertyAccessor 
 
 Dim strOrganizerEntryId As String 
 
 Dim bytResult() As Byte 
 
 Dim objRecipientUser As Outlook.ExchangeUser 
 
 Dim objOrganizerUser As Outlook.ExchangeUser 
 
 Dim blnReturn As Boolean 
 
 
 
 'Property tag for Organizer EntryID 
 
 Const PR_SENT_REPRESENTING_ENTRYID As String = _ 
 
 "http://schemas.microsoft.com/mapi/proptag/0x00410102" 
 
 
 
 ' Retrieve an AddressEntry object reference for the 
 
 ' specified recipient. 
 
 Set objAddrEntry = Recipient.AddressEntry 
 
 
 
 ' If the address entry represents an Exchange user 
 
 ' or Exchange remote user, retrieve an 
 
 ' ExchangeUser object reference for the sender and 
 
 ' compare the EntryID value of that object with 
 
 ' the EntryID of the specified recipient. 
 
 If objAddrEntry.AddressEntryUserType = _ 
 
 OlAddressEntryUserType.olExchangeUserAddressEntry _ 
 
 Or objAddrEntry.AddressEntryUserType = _ 
 
 OlAddressEntryUserType.olExchangeRemoteUserAddressEntry Then 
 
 
 
 ' Attempt to retrieve an ExchangeUser 
 
 ' object reference for the specified 
 
 ' recipient. 
 
 Set objRecipientUser = objAddrEntry.GetExchangeUser() 
 
 
 
 If objRecipientUser Is Nothing Then 
 
 ' An Exchange user could not be retrieved 
 
 ' for the specified recipient. 
 
 blnReturn = False 
 
 Else 
 
 ' Retrieve the EntryID property value of the organizer. 
 
 ' The Organizer property of the AppointmentItem object only 
 
 ' contains a string representation of the name of the 
 
 ' organizer, so the PR_SENT_REPRESENTING_ENTRYID property value 
 
 ' is instead retrieved, using the PropertyAccessor object 
 
 ' associated with the appointment item. 
 
 Set objPropAc = Appt.PropertyAccessor 
 
 bytResult = objPropAc.GetProperty( _ 
 
 PR_SENT_REPRESENTING_ENTRYID) 
 
 
 
 If Not IsEmpty(bytResult) Then 
 
 ' Convert the binary value retrieved from the 
 
 ' PR_SENT_REPRESENTING_ENTRYID property into 
 
 ' a string value for comparison. 
 
 strOrganizerEntryId = _ 
 
 objPropAc.BinaryToString(bytResult) 
 
 
 
 ' Attempt to retrieve an ExchangeUser 
 
 ' object reference for the organizer. 
 
 Set objOrganizerUser = Appt.Application.Session. _ 
 
 GetAddressEntryFromID(strOrganizerEntryId).GetExchangeUser() 
 
 
 
 If objOrganizerUser Is Nothing Then 
 
 ' An Exchange user could not be retrieved 
 
 ' for the organizer. 
 
 blnReturn = False 
 
 Else 
 
 ' Compare the EntryIDs of the organizer 
 
 ' and the specified recipient. 
 
 blnReturn = Appt.Application.Session. _ 
 
 CompareEntryIDs( _ 
 
 objRecipientUser.ID, _ 
 
 objOrganizerUser.ID) 
 
 End If 
 
 End If 
 
 End If 
 
 End If 
 
 
 
EndRoutine: 
 
 ' Clean up 
 
 Set objOrganizerUser = Nothing 
 
 Set objRecipientUser = Nothing 
 
 Set objAddrEntry = Nothing 
 
 Set objPropAc = Nothing 
 
 
 
 ' Return the results. 
 
 IsRecipientTheOrganizer = blnReturn 
 
 
 
 Exit Function 
 
 
 
ErrRoutine: 
 
 Debug.Print Err.Number & " - " & Err.Description, _ 
 
 vbOKOnly Or vbCritical, _ 
 
 "IsRecipientTheOrganizer" 
 
 
 
 GoTo EndRoutine 
 
End Function

另请参阅

命名空间对象

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