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ConvertToString Method (RDS)

Converts a Recordset to a MIME string that represents the recordset data.

Important note Important

Beginning with Windows 8 and Windows Server 2012, RDS server components are no longer included in the Windows operating system (see Windows 8 and Windows Server 2012 Compatibility Cookbook for more detail). RDS client components will be removed in a future version of Windows. Avoid using this feature in new development work, and plan to modify applications that currently use this feature. Applications that use RDS should migrate to WCF Data Service.


DataFactory.ConvertToString(Recordset)

DataFactory

An object variable that represents an RDSServer.DataFactory object.

Recordset

An object variable that represents a Recordset object.

With .asp files, use ConvertToString to embed the Recordset in an HTML page generated on the server to transport it to a client computer.

ConvertToString first loads the Recordset into the Cursor Service tables, and then generates a stream in MIME format.

On the client, Remote Data Service can convert the MIME string back into a fully functioning Recordset. It works well for handling fewer than 400 rows of data with no more than 1024 bytes width per row. You shouldn't use it for streaming BLOB data and large result sets over HTTP. No wire compression is performed on the string, so very large data sets will take considerable time to transport over HTTP when compared to the wire-optimized tablegram format defined and deployed by Remote Data Service as its native transport protocol format.

Note Note

If you are using Active Server Pages to embed the resulting MIME string in a client HTML page, be aware that versions of VBScript earlier than version 2.0 limit the string's size to 32K. If this limit is exceeded, an error is returned. Keep the query scope relatively small when using MIME embedding via .asp files. To fix this, download the latest version of VBScript from the Microsoft Windows Script Technologies Web site.

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