_MailItem.EntryID Property
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Returns a String (string in C#) representing the unique Entry ID of the object. Read-only.
public:
property System::String ^ EntryID { System::String ^ get(); };public string EntryID { get; }Public ReadOnly Property EntryID As StringProperty Value
Remarks
This property corresponds to the MAPI property PidTagEntryId.
A MAPI store provider assigns a unique ID string when an item is created in its store. Therefore, the EntryID property is not set for an Outlook item until it is saved or sent. The Entry ID changes when an item is moved into another store, for example, from your Inbox to a Microsoft Exchange Server public folder, or from one Personal Folders (.pst) file to another .pst file. Solutions should not depend on the EntryID property to be unique unless items will not be moved. The EntryID property returns a MAPI long-term Entry ID. For more information about long- and short-term EntryIDs, search http://msdn.microsoft.com for PidTagEntryId.