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Attachment Object (CDONTS Library)

Exchange Server 2003

Topic Last Modified: 2006-07-14

The Attachment object represents a file or message that is an attachment of a message.

Specified in type library:

CDONTS.DLL

First available in:

CDO for NTS Library version 1.2

Parent objects:

Attachments collection

Child objects:

(none)

Default property:

Name

No modifications are permitted to messages in the Inbox, except for message deletion. Therefore, all properties on an Attachment object are treated as read-only when the grandparent Message object is in the Inbox. When the access is described as read/write in the following table, that access applies only to attachments on messages in the Outbox.

ms528180.note(en-us,EXCHG.10).gifNote:
In compliance with RFC 2557, Microsoft Exchange 2000 Server and later versions no longer emit Content-Base headers. Therefore, using the ContentBase setting will not result in the Content-Base header being set in the attachment represented by this Attachment object.

Name

Available since version

Type

Access

Application

1.2

String

Read-only

Class

1.2

Long

Read-only

ContentBase

1.2

String

Read-only

 

 

 

ContentID

1.2

String

Read-only

ContentLocation

1.2

String

Read-only

Name

1.2

String

Read/write

Parent

1.2

Attachments collection object

Read-only

Session

1.2

Session object

Read-only

Source

1.2

String or Message object

Read/write

Type

1.2

Long

Read/write

Name

Available since version

Parameters

Delete

1.2

(none)

ReadFromFile

1.2

fileName as String

WriteToFile

1.2

fileName as String

An attachment is an object, such as a file or another object, that is associated with and transmitted with a Message object. The Attachment object does not specify its location within the message. The client application makes all the display decisions for a message, including whether its attachments are to be displayed, and if so, when and where.

The CDO for NTS Library does not manage the actual display of the attachment. The properties of the Attachment object simply provide information that the displaying application can use to find and open the attachment, and to convert its contents into a display.

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