SQL Server

Load an Email from a Chilkat XML String

Demonstrates the Chilkat Email.SetFromXmlText method, which loads an email from a Chilkat XML string (as produced by GetXml). On success, it replaces the entire current email. This example serializes one email to XML, then reconstructs it in a second object.

Background: This loads Chilkat's XML email representation from a string — the in-memory counterpart to LoadXml. The XML format is an alternative to standard MIME, but for most purposes the MIME form (SetFromMimeText / GetMime) is preferred: it is interoperable and also preserves Chilkat's CKX- metadata headers (which are always removed before an email is sent), so the XML format offers no metadata advantage.

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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
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @success int
    SELECT @success = 0

    --  Demonstrates the SetFromXmlText method, which loads an email from a Chilkat XML string.
    --  On success, it replaces the entire current email.

    --  Build a source email and serialize it to Chilkat XML.
    DECLARE @source int
    EXEC @hr = sp_OACreate 'Chilkat.Email', @source OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    EXEC sp_OASetProperty @source, 'Subject', 'Source message'
    EXEC sp_OASetProperty @source, 'From', 'alice@example.com'
    EXEC sp_OASetProperty @source, 'Body', 'Hello!'
    DECLARE @xmlText nvarchar(4000)
    EXEC sp_OAMethod @source, 'GetXml', @xmlText OUT

    --  Load a new email object from the XML string.
    DECLARE @email int
    EXEC @hr = sp_OACreate 'Chilkat.Email', @email OUT

    EXEC sp_OAMethod @email, 'SetFromXmlText', @success OUT, @xmlText
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @email, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @source
        EXEC @hr = sp_OADestroy @email
        RETURN
      END


    EXEC sp_OAGetProperty @email, 'Subject', @sTmp0 OUT
    PRINT 'Loaded subject: ' + @sTmp0

    EXEC @hr = sp_OADestroy @source
    EXEC @hr = sp_OADestroy @email


END
GO