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Office 2010
Outlook 2010
Outlook 2010 Primary Interop Assembly Reference
Microsoft.Office.Interop.Outlook
_MailItem Interface
_MailItem Properties
Actions Property
AlternateRecipientAllowed Property
Application Property
Attachments Property
AutoForwarded Property
AutoResolvedWinner Property
BCC Property
BillingInformation Property
Body Property
BodyFormat Property
Categories Property
CC Property
Class Property
Companies Property
Conflicts Property
ConversationID Property
ConversationIndex Property
ConversationTopic Property
CreationTime Property
DeferredDeliveryTime Property
DeleteAfterSubmit Property
DownloadState Property
EnableSharedAttachments Property
EntryID Property
ExpiryTime Property
FlagDueBy Property
FlagIcon Property
FlagRequest Property
FlagStatus Property
FormDescription Property
GetInspector Property
HasCoverSheet Property
HTMLBody Property
Importance Property
InternetCodepage Property
IsConflict Property
IsIPFax Property
IsMarkedAsTask Property
ItemProperties Property
LastModificationTime Property
Links Property
MAPIOBJECT Property
MarkForDownload Property
MessageClass Property
Mileage Property
NoAging Property
OriginatorDeliveryReportRequested Property
OutlookInternalVersion Property
OutlookVersion Property
Parent Property
Permission Property
PermissionService Property
PermissionTemplateGuid Property
PropertyAccessor Property
ReadReceiptRequested Property
ReceivedByEntryID Property
ReceivedByName Property
ReceivedOnBehalfOfEntryID Property
ReceivedOnBehalfOfName Property
ReceivedTime Property
RecipientReassignmentProhibited Property
Recipients Property
ReminderOverrideDefault Property
ReminderPlaySound Property
ReminderSet Property
ReminderSoundFile Property
ReminderTime Property
RemoteStatus Property
ReplyRecipientNames Property
ReplyRecipients Property
RetentionExpirationDate Property
RetentionPolicyName Property
RTFBody Property
Saved Property
SaveSentMessageFolder Property
Sender Property
SenderEmailAddress Property
SenderEmailType Property
SenderName Property
SendUsingAccount Property
Sensitivity Property
Sent Property
SentOn Property
SentOnBehalfOfName Property
Session Property
Size Property
Subject Property
Submitted Property
TaskCompletedDate Property
TaskDueDate Property
TaskStartDate Property
TaskSubject Property
To Property
ToDoTaskOrdinal Property
UnRead Property
UserProperties Property
VotingOptions Property
VotingResponse Property
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_MailItem.ConversationID Property

Office 2010

Returns a String (string in C#) that uniquely identifies a Conversation object that the MailItem object belongs to. Read-only.

Namespace:  Microsoft.Office.Interop.Outlook
Assembly:  Microsoft.Office.Interop.Outlook (in Microsoft.Office.Interop.Outlook.dll)
C#
VB
Copy 
'Declaration
<DispIdAttribute()> _
ReadOnly Property ConversationID As String
	Get
'Usage
Dim instance As _MailItem
Dim value As String

value = instance.ConversationID

Property Value

Type: System.String

This property associates items with a conversation. These items and the conversation all have the same value in their ConversationID property.

This property corresponds with the MAPI property PidTagConversationId.

If the MailItem object is created in a version of Microsoft Outlook earlier than Microsoft Outlook 2010, or if Outlook is running in online mode against a version of Microsoft Exchange Server earlier than Microsoft Exchange Server 2010, this property returns the same value as the ConversationTopic property.

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