C# Best Practices

Learn industry-standard practices and patterns to write clean, maintainable, and efficient C# code.

Coding Standards

2 practices

Performance

2 practices

Security

1 practices

Architecture

1 practices

Coding Standards Best Practices

Use Meaningful Names

Essential

Choose descriptive names for variables, methods, and classes that clearly express their purpose.

Recommended Approach

// Good
public class CustomerOrderProcessor
{
    private readonly IPaymentService _paymentService;
    
    public async Task<OrderResult> ProcessCustomerOrderAsync(Order order)
    {
        // Implementation
    }
}

Avoid This Approach

// Bad
public class COP
{
    private readonly IPS ps;
    
    public async Task<OR> ProcessAsync(O o)
    {
        // Implementation
    }
}

Follow C# Naming Conventions

Essential

Use PascalCase for public members, camelCase for private fields, and consistent naming patterns.

Recommended Approach

// Good
public class ProductService
{
    private readonly ILogger _logger;
    private const int MaxRetryAttempts = 3;
    
    public async Task<Product> GetProductByIdAsync(int productId)
    {
        // Implementation
    }
}

Avoid This Approach

// Bad
public class productservice
{
    private readonly ILogger Logger;
    private const int max_retry_attempts = 3;
    
    public async Task<Product> getproductbyid(int ProductID)
    {
        // Implementation
    }
}

Additional Resources

Deepen your understanding with these comprehensive guides

C# Coding Conventions

Official Microsoft guidelines for C# code style

Design Patterns in C#

Common design patterns and their C# implementations

Performance Guidelines

Optimize your C# applications for better performance