https://docs.devexpress.com/XtraReports/402526/feature-guide-to-devexpress-reports/use-report-controls/use-custom-controls/add-custom-controls-to-the-toolbox
Add Custom Controls to the Toolbox | .NET Reporting Tools | DevExpress Documentation
Feb 18, 2026 - Developer documentation for all DevExpress products.
to the toolboxreporting toolsaddcustomcontrols