A demo project showing how to implement the Fluent Builder Pattern in C# with validation, result handling, and a Blazor Server + MudBlazor front-end.
This sample extends the classic builder approach by:
- ✅ Using a Result type instead of exceptions to collect errors
- ✅ Integrating FluentValidation for declarative rules
- ✅ Adding Blazor Server UI with MudBlazor for a clean form experience
- ✅ Supporting DTO → Builder mapping (Mapster/Mapperly example included)
- ✅ Guarding against invalid state (e.g. negative amounts, past delivery dates, inconsistent currencies)
- .NET 9 (Blazor Server)
- MudBlazor (UI components)
- Result Pattern (collect errors instead of throwing exceptions)
- Mapster (DTO ↔ domain mapping, with builder integration)
Read the full article at :
