validation-patterns
Validation Patterns in ASP.NET Core
Rationale
Validation is critical for both security and user experience. Poor validation leads to invalid data, security vulnerabilities, and confusing error messages. These patterns provide a comprehensive approach to validation at multiple layers.
Validation Strategy
| Layer | Purpose | Technology |
|---|---|---|
| Client-Side | Immediate feedback, reduce server load | jQuery Validation, HTML5 |
| Model Binding | Data type/format validation | Model Binders |
| Application | Business rule validation | FluentValidation, DataAnnotations |
| Configuration | Startup validation | IValidateOptions |
| Database | Constraint enforcement | EF Core Configurations |
Validation Approach Decision Tree
Choose the validation approach based on complexity:
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