enhancing-the-simple-read-only-provider.md

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Learn more about: Enhancing the Simple Read-Only Provider	Enhancing the Simple Read-Only Provider	10/26/2018	read-only poviders [C++] IRowsetLocate class IRowsetLocate class, adding to OLE DB template providers simple read-only poviders [C++]	cba0e09f-44c1-41c1-9456-332aa13dc158

Enhancing the Simple Read-Only Provider

This section shows how to enhance the simple read-only provider created in the previous section. IRowsetLocateImpl creates an implementation for the IRowsetLocate interface and adds bookmark support for you.

When you have a working provider, you might want to enhance it to make the provider update, handle transactions, or enhance the performance of the row-fetching algorithm. Most provider enhancements involve adding an interface to an existing COM object.

The example in the following topics enhances the row-fetching mechanism by adding the IRowsetLocate interface to CAgentRowset. The topics show you how to:

• Make RCustomRowset inherit from IRowsetLocate.

• Dynamically determine the columns returned to the consumer.

See also

Creating a Simple Read-Only Provider