MessageAttachment element (preview)
Configures your event-based add-in to activate on the OnMessageReadWithCustomAttachment
event.
Add-in type: Mail
Valid only in these VersionOverrides schemas:
- Mail 1.1
For more information, see Version overrides in the add-in only manifest.
Syntax
<ExtensionPoint xsi:type="LaunchEvent">
<LaunchEvents>
<LaunchEvent Type="OnMessageReadWithCustomAttachment" FunctionName="onMessageReadWithCustomAttachmentHandler">
<MessageAttachments>
<MessageAttachment AttachmentExtension="xml"/>
<MessageAttachment AttachmentExtension="json"/>
</MessageAttachments>
</LaunchEvent>
</LaunchEvents>
<!-- Identifies the runtime to be used (also referenced by the Runtime element). -->
<SourceLocation resid="WebViewRuntime.Url"/>
</ExtensionPoint>
Contained in
Attributes
Attribute | Required | Description |
---|---|---|
AttachmentExtension | Yes | Specifies the file extension of the attachment included in a message on which the OnMessageReadWithCustomAttachment event occurs. The file extension value is limited to 50 characters and must not include a period. |
Child elements
None.
See also
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Office Add-ins