xaf-validation

What problem does it solve?

XAF Validation Module provides a comprehensive set of built-in validation rules and tooling to ensure data integrity for DevExpress XAF business objects across Blazor, WinForms, and Web API. It covers declarative validation, programmatic validation, cross-property rules, conditional validation, and rule grouping for scalable workflows.

Core Features & Use Cases

• Built-in validation rules: RuleRequiredField, RuleRegularExpression, RuleRange, RuleStringLength, RuleUniqueValue, RuleCriteria, RuleValueComparison, RuleIsReferenced.
• RuleSet and contexts: Apply DefaultContexts.Save and DefaultContexts.Delete, group rules with the [RuleSet] attribute, and run validations programmatically via Validator.
• Programmatic and custom validation: Extend with custom CodeRule implementations and use Validator to validate objects in code or during Save.
• Cross-property and conditional validation: Define rules that compare multiple properties or apply only under certain conditions.
• Validation in Web API: Ensure request models validate on commit and respond with detailed errors when invalid.

Quick Start

Add ValidationModule to your XAF application and use the built-in rules to enforce data integrity during Save operations.