Implement a data processing extension

Data processing extensions in Reporting Services enable you to connect to a data source and retrieve data. They also serve as a bridge between a data source and a dataset. Reporting Services data processing extensions are modeled after a subset of the Microsoft .NET Framework data provider interfaces.

In this section

Data processing extensions overview
Introduces how to write a custom data processing extension for Reporting Services.

Prepare to implement a data processing extension
Describes the interfaces available when implementing an Reporting Services data processing extension, and when you're required to implement a particular interface.

Create a data processing extension library
Describes assigning a namespace for your Reporting Services data processing extension and compiling your data processing extension into a library DLL.

Implement a Connection class for a data processing extension
Describes the attributes of a connection and how to implement your own Connection class for your data processing extension.

Implement a Command class for a data processing extension
Describes the attributes of a command, and how to implement your own Command class for your data processing extension.

Implement a DataReader class for a data processing extension
Describes the attributes of a data reader and how to implement your own DataReader class for your data processing extension.

Use an external dataset with Reporting Services
Describes how to expose your custom DataSet objects to the report server for consumption.

Deploy a data processing extension
Describes how to deploy your data processing extension.

Debug data processing extension code
Describes how to debug code in your data processing extensions.

For a sample of a fully implemented data processing extension, see SQL Server Reporting Services Product Samples.