(SQL Server) Transition from SFtp.ReadDir to SFtp.ReadDirListing

Provides instructions for replacing deprecated ReadDir method calls with ReadDirListing.

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

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

    -- ...
    -- ...

    DECLARE @handle nvarchar(4000)
    EXEC sp_OAMethod @sftp, 'OpenDir', @handle OUT, '.'
    -- ...
    -- ...

    -- ------------------------------------------------------------------------
    -- The ReadDir method is deprecated:

    DECLARE @dirObj int
    EXEC sp_OAMethod @sftp, 'ReadDir', @dirObj OUT, @handle
    EXEC sp_OAGetProperty @sftp, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 = 0
      BEGIN
        EXEC sp_OAGetProperty @sftp, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @sftp
        RETURN
      END

    -- ...
    -- ...

    EXEC @hr = sp_OADestroy @dirObj

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

    DECLARE @dirOut int
    EXEC @hr = sp_OACreate 'Chilkat.SFtpDir', @dirOut OUT

    EXEC sp_OAMethod @sftp, 'ReadDirListing', @success OUT, @handle, @dirOut
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @sftp, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @sftp
        EXEC @hr = sp_OADestroy @dirOut
        RETURN
      END

    -- ...
    -- ...

    EXEC sp_OAMethod @sftp, 'CloseHandle', @success OUT, @handle

    EXEC @hr = sp_OADestroy @sftp
    EXEC @hr = sp_OADestroy @dirOut


END
GO