Register Custom Report Parameter Types

• Jul 13, 2021

You can enable end users to create custom parameter types in an End-User Report Designer for WinForms.

Do the following to enable this feature:

1. Create a custom report design extension inherited from the ReportDesignExtension class.
2. In this descendant, override the ReportDesignExtension.AddParameterTypes method to register custom parameter types.
3. Register a custom extension using the ReportDesignExtension.RegisterExtension method.
4. Assign the required report to the created extension by calling the ReportDesignExtension.AssociateReportWithExtension method.

As a result, the created parameter types become available for the specified report in the Report Designer:

See the following articles for online code samples:

• Improved support for enums in report parameters and FilterString
• Improved support for Complex Type Parameters and FilterString

Tip

See How to: Serialize Parameters of Custom Types to learn how to serialize custom parameter types along with a report definition to an XML file.