SQL Server

Transition from Email.CreateDsn to Email.ToDsn

Provides instructions for replacing deprecated CreateDsn method calls with ToDsn. SQL Server

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @iTmp0 int
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @success int
    SELECT @success = 0

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

    -- ...
    -- ...

    DECLARE @explanation nvarchar(4000)
    SELECT @explanation = '...'
    DECLARE @statusFieldsXml nvarchar(4000)
    SELECT @statusFieldsXml = '...'
    DECLARE @headerOnly int
    SELECT @headerOnly = 0

    -- ------------------------------------------------------------------------
    -- The CreateDsn method is deprecated:

    DECLARE @emailObj int
    EXEC sp_OAMethod @email, 'CreateDsn', @emailObj OUT, @explanation, @statusFieldsXml, @headerOnly
    EXEC sp_OAGetProperty @email, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 = 0
      BEGIN
        EXEC sp_OAGetProperty @email, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @email
        RETURN
      END

    -- ...
    -- ...

    EXEC @hr = sp_OADestroy @emailObj

    -- ------------------------------------------------------------------------
    -- Do the equivalent using ToDsn.
    -- Your application creates a new, empty Email object which is passed 
    -- in the last argument and filled upon success.

    DECLARE @dsnEmail int
    EXEC @hr = sp_OACreate 'Chilkat.Email', @dsnEmail OUT

    EXEC sp_OAMethod @email, 'ToDsn', @success OUT, @explanation, @statusFieldsXml, @headerOnly, @dsnEmail
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @email, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @email
        EXEC @hr = sp_OADestroy @dsnEmail
        RETURN
      END

    EXEC @hr = sp_OADestroy @email
    EXEC @hr = sp_OADestroy @dsnEmail


END
GO