Table of Contents

BLAZMVVM0019: CascadingParameter vs Inject Analyzer

Diagnostic Information

  • Diagnostic ID: BLAZMVVM0019
  • Category: Blazing.Mvvm
  • Severity: Info
  • Title: Use Inject instead of CascadingParameter for services

Description

Detects [CascadingParameter] attributes used for dependency injection services when [Inject] would be more appropriate and semantically clearer.

Examples

❌ Less Clear

public class MyComponent : ComponentBase
{
    [CascadingParameter]
    public IMyService MyService { get; set; } // ℹ️ Info: Use Inject
}

✅ Clear Intent

public class MyComponent : ComponentBase
{
    [Inject]
    public IMyService MyService { get; set; } // ✅ Clear DI intent
}

When to Use Each

Attribute Use For
[Inject] Services from DI container (ILogger, HttpClient, etc.)
[CascadingParameter] Component state cascaded from parent (Theme, AppState)

Benefits

  • Clear semantic meaning
  • Better code readability
  • Consistent with Blazor best practices
  • Easier to understand data flow
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