nguyen06-cse/quan-li-dang-ky-hoc-phan

QuanLyDKHP is a .NET/Avalonia desktop system for academic administration: staff manage student and course records, open semesters and class sections, process course registrations and tuition, then produce reports or exchange data through Excel/PDF. The sampled registration service validates requests, persists enrollment and recalculates tuition; the import implementation also saves imported records and recalculates tuition. The README documents the broader feature set and Clean Architecture layers. Some UI-to-service and unsampled subsystem wiring is not shown in the excerpts, so those connections are kept conservative.