implementing-wpf-validation
Installation
SKILL.md
WPF Data Validation
1. Validation Approaches
| Approach | Location | Pros | Cons |
|---|---|---|---|
ValidationRule |
XAML (Binding) | Simple, declarative XAML | Hard to separate from ViewModel |
IDataErrorInfo |
ViewModel | ViewModel integration | Synchronous validation only |
INotifyDataErrorInfo |
ViewModel | Async support, multiple errors | Complex implementation |
ExceptionValidationRule |
XAML | Exception-based | Potential performance impact |