SQL Server

Get the Filename of an Attachment

Demonstrates the Chilkat Email.GetAttachmentFilename method, which retrieves an attachment's filename as stored in the MIME. The index is zero-based. This example adds an attachment and reads its filename.

Background: An attachment's filename comes from the sender's message and is not guaranteed to be safe or unique — it may include path separators or characters that are awkward on the local filesystem, and two attachments can share a name. When saving attachments to disk, treat this value as untrusted input: sanitize it and guard against collisions (see the OverwriteExisting property, which can auto-generate unique names).

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-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    --  Demonstrates the GetAttachmentFilename method, which retrieves an attachment's filename
    --  (as stored in the MIME).  The index is zero-based.

    DECLARE @email int
    EXEC @hr = sp_OACreate 'Chilkat.Email', @email OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    EXEC sp_OASetProperty @email, 'Subject', 'Attachment filename'

    DECLARE @success int
    EXEC sp_OAMethod @email, 'AddStringAttachment', @success OUT, 'notes.txt', 'Some notes.'

    --  Get the filename of the first attachment (index 0).
    DECLARE @fname nvarchar(4000)
    EXEC sp_OAMethod @email, 'GetAttachmentFilename', @fname OUT, 0

    PRINT 'Attachment 0 filename: ' + @fname

    EXEC @hr = sp_OADestroy @email


END
GO