Ayodhyya — The Developer's Notebook | 1419 System Design, .NET & Angular Guides

Welcome to this complete C# tutorial designed to guide you from absolute basics to advanced, professional-level concepts. Whether you are a beginnerâ€¦

⏱ 3 min📅 12 Apr 2025

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C# Design Patterns

Design patterns play a critical role in modern C# application development. As software systems grow in size and complexity, developers must deal withâ€¦

⏱ 10 min📅 11 Apr 2025

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SOLID Principles in C#

In object-oriented programming, SOLID is an acronym for the five design principles introduced by Robert C. Martin. These principles are used toâ€¦

⏱ 22 min📅 10 Apr 2025

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Learn Object-Oriented Programming with C#

Object-oriented programming is a way of developing software applications using real-world terminologies to create entities (classes) that interactâ€¦

⏱ 25 min📅 9 Apr 2025

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C# - Object Initializer Syntax

C# 3.0 (.NET 3.5) introduced Object Initializer Syntax, a new way to initialize an object of a class or collection. Object initializers allow you toâ€¦

⏱ 2 min📅 8 Apr 2025

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C# Streams and File System Operations

Working with data is a core part of many C# applications. Whether you are reading from files, writing logs, processing data in memory, orâ€¦

⏱ 11 min📅 7 Apr 2025

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C# - Extension Method

Extension methods, as the name suggests, are additional methods. Extension methods allow you to inject additional methods without modifying, derivingâ€¦

⏱ 2 min📅 6 Apr 2025

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Covariance and Contravariance in C#

Covariance and contravariance allow us to be flexible when dealing with class hierarchy.

⏱ 3 min📅 5 Apr 2025

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C# - Events

An event is a notification sent by an object to signal the occurrence of an action. Events in .NET follow the observer design pattern.

⏱ 6 min📅 4 Apr 2025

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C# - Anonymous Method

As the name suggests, an anonymous method is a method without a name. Anonymous methods in C# can be defined using the delegate keyword and can beâ€¦

⏱ 2 min📅 3 Apr 2025

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C# Func, Action and Predicate Delegates with Examples

C# includes built-in generic delegate types Func and Action, so that you don't need to define custom delegates manually in most cases.

⏱ 5 min📅 2 Apr 2025

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C# - What is Delegate

The delegate is a reference type data type that defines the method signature. You can define variables of delegate, just like other data type, thatâ€¦

⏱ 5 min📅 1 Apr 2025

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Exception Handling in C# with Examples – try-catch, throw, finally & Custom Exceptions

Here you will learn about the built-in exception classes in C#.

⏱ 11 min📅 31 Mar 2025

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C# - Tuple & ValueTuple

The Tuple<T> class was introduced in .NET Framework 4.0. A tuple is a data structure that contains a sequence of elements of different data types. Itâ€¦

⏱ 7 min📅 30 Mar 2025

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C# - Queue

Queue is a special type of collection that stores the elements in FIFO style (First In First Out), exactly opposite of the Stack<T> collection. Itâ€¦

⏱ 2 min📅 29 Mar 2025

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C# - Stack

Stack is a special type of collection that stores elements in LIFO style (Last In First Out). C# includes the generic Stack<T> and non-generic Stackâ€¦

⏱ 3 min📅 28 Mar 2025

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C# - Hashtable

The Hashtable is a non-generic collection that stores key-value pairs, similar to generic Dictionary<TKey, TValue> collection. It optimizes lookupsâ€¦

⏱ 2 min📅 27 Mar 2025

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C# - Dictionary<TKey, TValue>

C# - Dictionary<TKey, TValue&gt

⏱ 3 min📅 26 Mar 2025

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C# - SortedList<TKey, TValue>

C# - SortedList<TKey, TValue&gt

⏱ 4 min📅 25 Mar 2025

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C# - List<T>

The List<T> is a collection of strongly typed objects that can be accessed by index and having methods for sorting, searching, and modifying list. Itâ€¦

⏱ 5 min📅 24 Mar 2025

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C# - ArrayList

In C#, the ArrayList is a non-generic collection of objects whose size increases dynamically. It is the same as Array except that its size increasesâ€¦

⏱ 5 min📅 23 Mar 2025

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C# Generic Constraints & collections

C# allows you to use constraints to restrict client code to specify certain types while instantiating generic types. It will give a compile-timeâ€¦

⏱ 5 min📅 22 Mar 2025

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C# Generics

Generic means the general form, not specific. In C#, generic means not specific to a particular data type.

⏱ 4 min📅 21 Mar 2025

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C# Indexers

An indexer is a special type of property that allows a class or a structure to be accessed like an array for its internal collection. C# allows us toâ€¦

⏱ 3 min📅 20 Mar 2025

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C# Jagged Arrays: An Array of Array

A jagged array is an array of array. Jagged arrays store arrays instead of literal values.

⏱ 2 min📅 19 Mar 2025

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C# - Multidimensional Arrays

C# supports multidimensional arrays up to 32 dimensions. The multidimensional array can be declared by adding commas in the square brackets. Forâ€¦

⏱ 3 min📅 18 Mar 2025

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C# Arrays

A variable is used to store a literal value, whereas an array is used to store multiple literal values.

⏱ 4 min📅 17 Mar 2025

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C# - Static Class, Methods, Constructors, Fields

⏱ 5 min📅 16 Mar 2025

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C# - Partial Classes and Methods

In C#, you can split the implementation of a class, a struct, a method, or an interface in multiple .cs files using the partial keyword. The compilerâ€¦

⏱ 2 min📅 15 Mar 2025

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C# - do while Loop

The do while loop is the same as while loop except that it executes the code block at least once.

⏱ 2 min📅 14 Mar 2025

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C# - while Loop

C# provides the while loop to repeatedly execute a block of code as long as the specified condition returns true.

⏱ 2 min📅 13 Mar 2025

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C# for Loop

Here, you will learn how to execute a statement or code block multiple times using the for loop, structure of the for loop, nested for loops, and howâ€¦

⏱ 5 min📅 12 Mar 2025

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C# - Switch Statement

The switch statement can be used instead of if else statement when you want to test a variable against three or more conditions. Here, you will learnâ€¦

⏱ 4 min📅 11 Mar 2025

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C# - if, else if, else Statements

C# provides many decision-making statements that help the flow of the C# program based on certain logical conditions. Here, you will learn about if,â€¦

⏱ 5 min📅 10 Mar 2025

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C# Operators

Operators in C# are some special symbols that perform some action on operands. In mathematics, the plus symbol (+) do the sum of the left and rightâ€¦

⏱ 4 min📅 9 Mar 2025

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C# - Interface

In the human world, a contract between the two or more humans binds them to act as per the contract. In the same way, an interface includes theâ€¦

⏱ 5 min📅 8 Mar 2025

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Value Type and Reference Type

In C#, these data types are categorized based on how they store their value in the memory. C# includes the following categories of data types

⏱ 3 min📅 7 Mar 2025

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C# - Nullable Types

As you know, a value type cannot be assigned a null value. For example, int i = null will give you a compile time error.

⏱ 4 min📅 6 Mar 2025

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C# - Dynamic Types

C# 4.0 (.NET 4.5) introduced a new type called dynamic that avoids compile-time type checking. A dynamic type escapes type checking at compile-time;â€¦

⏱ 2 min📅 5 Mar 2025

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C# - Anonymous Type

In C#, an anonymous type is a type (class) without any name that can contain public read-only properties only. It cannot contain other members, suchâ€¦

⏱ 3 min📅 4 Mar 2025

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C# - StringBuilder

In C#, the string type is immutable. It means a string cannot be changed once created. For example, a new string, "Hello World!" will occupy a memoryâ€¦

⏱ 3 min📅 3 Mar 2025

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C# Enumerations Type - Enum

In C#, an enum (or enumeration type) is used to assign constant names to a group of numeric integer values. It makes constant values more readable,â€¦

⏱ 2 min📅 2 Mar 2025

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C# - Struct

In C#, struct is the value type data type that represents data structures. It can contain a parameterized constructor, static constructor, constants,â€¦

⏱ 3 min📅 1 Mar 2025

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Working with Date and Time in C#

C# includes DateTime struct to work with dates and times.

⏱ 3 min📅 28 Feb 2025

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C# Strings

In C#, a string is a series of characters that is used to represent text. It can be a character, a word or a long passage surrounded with the doubleâ€¦

⏱ 4 min📅 27 Feb 2025

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