C_SHARP_SKILLS/docs/concept-map.md

C# 14 / .NET 10 Concept Map

Platform and Tooling

• Modern .NET versus legacy .NET
• SDK versus runtime
• Project files and solution files
• Visual Studio, VS Code, Rider, and command-line workflows
• dotnet CLI commands
• SDK pinning with global.json
• Build, restore, test, format, pack, publish
• Cross-platform deployment and Linux/Windows differences

C# Language

• Grammar, vocabulary, keywords, identifiers, expressions, statements
• Variables, constants, type inference, literals
• Value types, reference types, nullable types
• Operators, conversions, casting, parsing, overflow checking
• Selection, iteration, pattern matching
• Exception handling and guard clauses
• Functions, parameters, return values, tuples, local functions
• Classes, structs, records, fields, methods, properties, indexers
• Encapsulation, abstraction, composition, inheritance, polymorphism
• Interfaces, generics, delegates, events, extension methods
• Nullable reference types and null-safety

.NET Libraries

• Numbers, strings, dates, text formatting
• Collections and dictionaries
• Regular expressions
• Filesystem, streams, encodings
• JSON and XML serialization
• Logging, diagnostics, debugging, testing

Data and Querying

• EF Core models, DbContext, providers
• Database First and Code First
• LINQ to Objects and LINQ to Entities
• Filtering, projection, sorting, grouping, joins, aggregates
• Tracking, no-tracking, transactions, migrations, concurrency
• Unit of Work and generic repository pattern

Web

• ASP.NET Core pipeline and middleware
• Dependency injection and configuration
• Static assets
• Blazor components, forms, lifecycle, render modes
• Minimal API endpoints
• OpenAPI documentation
• HTTP client consumption
• Health checks and security headers

Packaging and Deployment

• Class libraries
• NuGet packages
• Framework-dependent and self-contained publishing
• Single-file publishing
• Trimming
• Native AOT