Ajay Narkhedkar's contributions

Unlock JWT secrets! Understand Header, Payload (claims), and Signature for secure authentication in ASP.NET Core Web APIs.

Explore why modern ASP.NET Core Web APIs favor JWT over sessions for flexible, scalable authentication across diverse applications.

Master C# loops! This guide covers for, while, do-while, and foreach loops, plus break and continue statements. Learn to control program flow effectively.

Master C# conditional statements! Learn to use if, if-else, switch, and the ternary operator for decision-making in your code. Includes practical examples and tips.

Master C# type casting (implicit, explicit, Convert, Parse, TryParse) and comments (single-line, multi-line, XML). Write safe, readable, and maintainable code!

Discover C#, a powerful language by Microsoft for .NET development. Build web, desktop, cloud apps & more! Explore its features, uses, and career scope. Perfect for beginners!

This article provides a complete and highly descriptive guide to Operators in C#. It explains all categories of operators—arithmetic, assignment, comparison, logical, unary, bitwise, conditional, null-coalescing, type checking, member access, indexers, lambda, range, pattern matching, and operator overloading—with 3–4 detailed points for each. The article helps beginners and professional .NET developers understand how operators work, how expressions are evaluated, and how to write clean, expressive, and efficient C# code.

This article provides a complete and descriptive guide to data types in C#. It explains value types, reference types, nullable types, numeric types, boolean, character types, strings, records, arrays, enums, structs, dynamic types, object types, pointer types, and memory behavior in C#. The article also covers stack vs heap storage, best practices, and clear examples, making it ideal for beginners and professional .NET developers who want to understand C# fundamentals in depth.

This article provides a complete, descriptive, and beginner-to-advanced explanation of Entity Framework Core (EF Core). It covers how EF Core works internally, its core components, change tracking, relationship handling, migrations, DbContext, DbSet, performance features, advanced capabilities, concurrency handling, shadow properties, value conversions, global filters, interceptors, and when EF Core is suitable for real-world .NET applications. Written in a simple, clear style, this guide helps developers understand EF Core deeply without focusing on LINQ or specific approaches.

This article provides a complete and descriptive guide to the Repository Pattern in C# and ASP.NET Core. It explains what the repository pattern is, why it is used, and how it helps achieve clean architecture, separation of concerns, and maintainability. With detailed explanations, step-by-step implementation, generic and specific repositories, code examples, dependency injection usage, best practices, and real-world scenarios, this guide is ideal for beginners and advanced developers building scalable and testable .NET applications.

This article provides a complete, easy-to-understand guide to asynchronous programming in C# and .NET Core. It explains the differences between synchronous and asynchronous execution, how the async and await keywords work, the role of Task and Task<T>, I/O-bound vs CPU-bound operations, and how async improves performance in ASP.NET Core applications. With practical examples, repository patterns, controller samples, and best practices, this guide is ideal for beginners and professionals who want to build scalable, responsive, and high-performance applications using modern asynchronous programming techniques.

This article provides a comprehensive and easy-to-understand guide to Access Modifiers and Access Specifiers in C#. It explains how accessibility works in classes and class members, covering public, private, protected, internal, protected internal, and private protected modifiers with clear examples, descriptive explanations, and real-world scenarios. This guide is written for beginners and professional .NET developers who want to master encapsulation, improve application structure, and follow best practices in C# object-oriented programming.

This article provides a complete and easy-to-understand guide to classes and all types of classes in C#. It covers the fundamentals of what a class is, how objects work, and explains each class type—including concrete, abstract, sealed, static, partial, nested, anonymous, POCO, generic, and record classes—with clear examples and real-world applications.

This article provides a complete, easy-to-understand, and professional guide to Exception Handling in ASP.NET Core. It explains what exceptions are, why proper error handling is important, and how to implement try–catch, global exception middleware, built-in error handling, custom exception filters, structured ProblemDetails responses, validation errors, and logging using best practices. Ideal for beginners and experienced .NET developers, this article teaches how to build stable, secure, and production-ready applications with proper exception handling techniques.

This article provides a complete and easy-to-understand guide to Object-Oriented Programming (OOP) in C# .NET, covering core concepts such as classes, objects, variables, methods, constructors, access modifiers, encapsulation, inheritance, polymorphism, abstraction, and interfaces. With clear explanations and practical examples, it helps learners build a strong foundation for real-world .NET development and technical interview preparation. Ideal for beginners, students, and professionals looking to improve their understanding of OOP principles in C#.