Defining Parameters in AX 2012: A Guide to RDP Classes

In Microsoft Dynamics AX 2012, Report Data Provider (RDP) classes play a crucial role in defining parameters that will be used in a SQL Server Reporting Services (SSRS) report. This class allows you to define any number of parameters using X++ statements of any data type, which can be passed on to the RDP class. In this article, we'll explore how to define parameters in AX 2012 and provide an overview of the key attributes used in RDP classes.

Defining Parameters with SRSReportParameterAttribute

The SRSReportParameterAttribute is one of the most important attributes used in RDP classes. This attribute defines the data contract class that will be used by the report to prompt for parameter values. If your RDP class uses an Application Object Tree (AOT) query to process data, you'll need to define this attribute at the beginning of the class.

Defining Parameters with SRSReportQueryAttribute

The SRSReportQueryAttribute specifies which AOT query will be used in the report. This attribute is essential if your RDP class uses an AOT query to process data.

Extending the SRSReportDataProviderBase Class

To create a RDP class in AX 2012, you'll need to extend the SRSReportDataProviderBase class with the X++ class. The SRSReportDataProviderBase class is used by reporting services to process data for your report.

Processing Business Logic and Returning a Dataset

The RDP class processes business logic based on a specified parameter and/or query and returns a dataset to the reporting services. This means that you can use the RDP class to access and process data for your SSRS report, making it easier to create complex reports with multiple parameters.

In conclusion, defining parameters in AX 2012 is an essential step in creating a successful RDP class. By understanding how to define parameters using X++ statements and attributes such as SRSReportParameterAttribute and SRSReportQueryAttribute, you'll be able to create robust RDP classes that can process complex business logic and return datasets to reporting services.

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