C# Programming Corner

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  1. Programming C# is a concise 56-page tutorial book aimed at beginners and students. Learn C# programming fundamentals, syntax, data types, and advanced topics like classes, arrays, and exception handling. Download Visual Studio 2017 Community for free to start coding in C#. Discover more free C# books and resources to deepen your knowledge.
  2. Learn about StreamReader and StreamWriter classes in C#. These classes are essential for reading from and writing to files efficiently. Understand their usage for file handling tasks, including reading text files line by line or writing data to files.
  3. Learn about code smells—indicators of deeper issues in programming. Discover through examples like redundant boolean literals, explicit exception throwing, inefficient string concatenation, redundant conditional implementations, and exception rethrowing in finally blocks.
  4. A Transaction Scope or Nested Transaction in database management refers to managing atomic, consistent, isolated, and durable operations. It involves handling multiple database actions as a single unit, ensuring data integrity and reliability.
  5. Constructors in C# initialize objects upon creation. They ensure objects start in a defined state by setting initial values or performing necessary setup. Types include default (without parameters), parameterized (with inputs), copy (from another instance), static (for class-level initialization), and private (restricting instance creation).
  6. Explore Finalize, Destructor, IDisposable pattern in C# for managing unmanaged resources. Learn about memory management, Garbage Collector behavior, and IDisposable interface. Implement IDisposable for efficient memory cleanup and use Using block for automatic disposal, optimizing performance.
  7. This article provides tips on creating an SQL table using an XML file and importing data into it. It covers creating a DataTable from an XML file, generating an SQL table from the DataTable, and using SQL's BulkCopy feature for efficient data import.
  8. Comparison operations are a fundamental aspect of programming in C#. Whether you're comparing primitive types, strings, or objects, or handling null values, understanding the nuances of comparison can enhance both the performance and readability of your code.
  9. Discover how to implement pagination in C# with this comprehensive guide. Learn to use ASP.NET Core, Entity Framework, and LINQ for efficient data paging. This guide covers server-side and client-side pagination, using Skip and Take methods, handling pagination parameters, and provides easy code examples for seamless integration.
  10. Learn to connect to SAP with C# using SAP .NET Connector 3.0 for RFC and Web services. Implement ECCDestinationConfig and IRfcTableExtension classes. Access SAP functions, structures, and tables with IRfcFunction, IRfcStructure, and IRfcTable. Connect to SAP system, send data, and handle exceptions effectively.
  11. Here is a list of the most popular OOPS interview questions and answers explained. These OOPS interview questions are for both beginners and professional C# developers.
  12. Learn about optimizing web application performance through cache implementation. Understand various cache types like in-memory, persistent, and distributed caches. Explore methods to add, store, retrieve, and manage data in the cache using .NET MemoryCache.
  13. Explore the nuances of memory management in C# programming, distinguishing between value types and reference types, understanding dynamic and static memory allocation, evaluating access efficiency, recursion implications, handling StackOverflowException, and the role of garbage collection in managing memory resources efficiently.
  14. The "break" statement in C# is a control flow statement that terminates the nearest enclosing loop or switch statement. It is commonly used to exit a loop prematurely when a specific condition is met, improving code readability and efficiency.
  15. In this article, we will learn Multithreading is a parallel way of execution where the application is broken into parts so that it can have more than one execution path at the same time.
  16. IQueryable vs IEnumerable" explores the differences between these two interfaces in C#. IQueryable is suitable for building dynamic queries against a database, allowing deferred execution and optimized query translation.
  17. C# (C sharp) is a versatile programming language by Microsoft, ideal for web, desktop, mobile, cloud, and gaming apps. It features strong typing, garbage collection, and extensive libraries.
  18. The Thread Pool in C# simplifies concurrency by managing threads for you. Unlike creating and managing threads yourself, the Thread Pool offers a pool of reusable threads, improving performance and reducing complexity. It's ideal for short-lived tasks like calculations or processing data.
  19. "Basic OOPs concepts in C# involve classes, objects, inheritance, encapsulation, and polymorphism. It includes access modifiers, constructors, and destructors, along with method overloading and overriding.
  20. BLOBs (Binary Large Objects) efficiently store large files (images, videos) in databases. Saving/retrieving them involves managing memory usage for optimal performance. This article explores C# techniques using FileStream and BinaryReader to break BLOBs into manageable chunks, ensuring smooth database interaction.
  21. C#.NET applications can access OAuth-protected REST APIs. You'll obtain an access token through OAuth flow (often via a separate request) and include it in the authorization header of your HttpClient calls.
  22. This guide explores implementing CRUD operations in a C# Windows Forms application using stored procedures. Learn to connect to SQL Server, execute stored procedures, and handle data efficiently.
  23. A public constructor that accepts initialization data is required so that the client can pass-in minimum state for the type to be valid. Private constructor, on the other hand, is used by methods to construct a new object and set its entire state.
  24. Explore the elegance of the latest terse syntax for collection expressions, offering unparalleled simplicity in programming. Dive into efficient coding techniques, optimized syntax, and enhanced readability, revolutionizing how you interact with collections in programming languages.
  25. Learn how to create a custom collection class in C#, utilizing the Customer class with attributes. Implement and manage customer data with CollectionBase, including methods for adding, removing, and accessing customer instances. Explore auto-defined properties and List collections in C#.
  26. Learn how to efficiently create and retrieve records from an MS Access 2003 database using OLEDB in C#. This guide covers setting up the OLEDB connection, executing SQL commands, and handling data operations seamlessly.
  27. This C# code defines a simple text editor application in Windows Forms. It includes functionalities to open, save, clear text, and exit. File handling operations are performed using StreamReader and StreamWriter.
  28. In C#, the "is" operator checks if an object is of a specified type, returning a boolean. The "as" operator attempts to cast an object to a specified type, returning null if the cast fails. Both operators facilitate safe type conversions and runtime type checking, enhancing type safety and reducing exceptions in object-oriented programming.
  29. Develop a Windows app in C# .Net using the Microsoft Speech Object Library to deliver New Year wishes. Steps include adding the Speech Object Library reference, designing the UI with a Label, TextBox, and Buttons, and implementing code to speak the wishes using the SpVoice object.
  30. This guide covers how to insert and retrieve records from Microsoft Excel 2007 using OLEDB in C#.NET. It explains setting up OLEDB connections, executing SQL commands for data manipulation, and handling Excel data within C# applications.
  31. Develop a Windows app for guessing celebrity images. Design includes labels, textboxes, buttons, and image browsing. Code validates password, hides buttons, and allows image loading. Note: Password is "pra".
  32. Do-while loop in C# guarantees execution of code block at least once. Syntax: do { /* Code */ } while (condition);. Steps involve code execution, condition evaluation, loop continuation, and termination. Example demonstrates printing numbers from zero to five.
  33. Exception filtering, a notable addition in C# 6.0, enhances error handling by allowing catch blocks to specify conditions for exception handling. This feature, employing the 'when' keyword, enables developers to filter exceptions based on specific criteria, promoting clearer and more concise error management in code.
  34. The provided C# 6.0 code demonstrates the use of string interpolation, auto-implemented properties, and object initialization syntax. It showcases the nameof operator to retrieve variable names statically.
  35. Auto Property Initializer, a feature in C# 6.0, simplifies property initialization by allowing default values to be assigned directly within property declarations. This enhances code readability and reduces verbosity, improving software development efficiency.
  36. Explore the intricacies of programming paradigms with a comprehensive dive into synchronous, asynchronous, blocking, non-blocking, concurrent, and parallel execution.
  37. Dictionary Initializers, a new feature in C# 6.0, streamline code by enabling concise initialization of dictionaries with key-value pairs. This enhances code readability and reduces verbosity in .NET programming, promoting efficient software development.
  38. Mastering SOLID principles in C# enhances software design by promoting maintainability, scalability, and robustness. These principles include Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion.
  39. C# 6.0 introduces Static Class Statements, simplifying code organization and enhancing readability by allowing static members to be imported directly, improving code maintenance and reducing verbosity in .NET programming.
  40. Discover the power of using 'await' in catch and finally blocks with C# 6.0. Explore how this feature revolutionizes error handling and asynchronous programming, improving code readability and efficiency.
  41. C# 6.0 introduced Expression Bodied Members, leveraging Lambda expressions to simplify syntax, reduce code, and enhance readability. These members streamline method and property definitions, offering a concise alternative to traditional syntax, resulting in cleaner and more maintainable code.
  42. On November 12, 2014, Microsoft announced Visual Studio 2015 Preview and C# 6.0, featuring the Null Propagation Operator. This operator simplifies null checks, reducing code complexity and bugs. It allows checking for null values in object reference chains using the ?. operator, streamlining error handling and improving code readability.
  43. C# nameof operator returns the unqualified string name of a variable, type, or member. In this article, we will learn how to use the nameof operator in C# code example.
  44. The nameof Operator retrieves names of variables or members dynamically, aiding in code maintenance. Raising PropertyChanged Event notifies property changes in INotifyPropertyChanged implementations. Argument Checking and Guard Clauses ensure robust code by validating inputs.
  45. Reflection in C# allows runtime inspection and interaction with object types and members, enabling dynamic invocation, type inspection, and metadata access. It's powerful for development tools and debugging utilities.
  46. C# HashSet, introduced in .NET 3.5 within System.Collections.Generic, is an unordered collection of unique elements. It efficiently prevents duplicate entries, outperforming lists. This article covers basic HashSet operations, handling custom types, and ensuring uniqueness using IEquatable, Equals, and GetHashCode methods.
  47. Learn how to work with stacks in C#. The Stack class in C# provides a collection of objects that follows the Last-In-First-Out (LIFO) principle. Key operations include Push, Pop, and Peek. Understanding stacks is essential for tasks requiring reverse-order processing and can enhance your programming skills in C#.
  48. Learn how to efficiently manage data using queues in C#. This comprehensive tutorial covers the basics of the Queue data structure, including enqueue and dequeue operations, practical examples, and best practices. Perfect for beginners and seasoned developers looking to enhance their C# skills.
  49. In C#, the `Array.Resize<T>` method changes the size of a one-dimensional array, either expanding or shrinking it. This method allocates a new array, copies elements, and replaces the old array.
  50. Explore Hashtable in .NET 2.0, storing data with key-value pairs, constructors for capacity and load factor, fetching data with enumerator, clearing, and searching by key or value. Get ready for more insights in upcoming parts!
  51. Explore the null-conditional operators in C# 6.0, which simplify null checks and prevent NullReferenceExceptions. Learn about the ?. operator, null-conditional indexing, and combining these with null-coalescing for robust code. Enhance your understanding of null safety in C#.
  52. String handling is a crucial aspect of programming, and C# provides multiple ways to manage strings effectively. This article compares verbatim string literals and raw string literals, highlighting their features, use cases, and differences.
  53. The Strategy Pattern in software development manages conditional logic elegantly by encapsulating algorithms into interchangeable classes. This approach enhances code flexibility, maintainability, and scalability, especially in complex applications.
  54. This article explains Null-conditional Operators in C#, detailing their use for simplifying null checks, avoiding NullReferenceExceptions, working with collections, and combining with extension methods to handle null values efficiently.
  55. The Singleton pattern is one of the most commonly used design patterns in software engineering. It falls under the category of creational patterns and ensures that a class has only one instance while providing a global point of access to that instance.
  56. Difference Between Var And Dynamic In C#. The two concepts of static and dynamic types in C# can be illustrated with the use of the two keywords named var and dynamic. Var Vs Dynamic In C#.
  57. In C#, both object and dynamic are used for handling data of any type, but they serve different purposes. The object keyword is used for static typing, requiring explicit type casting, while dynamic allows for dynamic typing, with type checking at runtime.
  58. Explore the differences between const, readonly, and static keywords in C#. This guide covers their unique functionalities, use cases, and best practices in C# programming. Learn how to effectively use these keywords to define constants, immutable fields, and class-level members in your code.
  59. This is very simple part 1 article but will clear some of the concepts of C# for those who are learning or for those also who might have good knowledge but unfortunately miss these important keywords.
  60. IN this article, we will learn Ref" and "Out" keywords in C# are used to modify method parameter behavior. "Ref" passes parameters by reference, allowing method changes to reflect outside the method. "Out" is similar but used for returning multiple values from a method.
  61. Explore the power of while loops in C# programming with this comprehensive guide. Learn how to utilize while loops for iterative tasks, control flow, and conditional execution. Master essential syntax and best practices to enhance your coding skills and efficiency.
  62. In C#, print tree counts from 1 to 10 and 10 to 1 using nested loops for ascending and descending order respectively. Utilize console output and loop control structures for efficient counting and display.
  63. In C#, both ToString() and Convert.ToString() are used to convert objects to their string representation. However, they have different usages and behavior. Understanding the differences between these two methods can help you choose the right one for your needs.
  64. In C#, the continue statement is used within loops (for, while, do-while, and foreach) to skip the current iteration and proceed to the next one. It's useful for bypassing specific conditions within a loop, enhancing control flow and loop efficiency.
  65. Embark on your journey to master Object-Oriented Programming with C# in Part 1. Explore essential concepts like classes, methods, properties, and inheritance, laying the foundation for advanced C# development.
  66. Discover advanced Object-Oriented Programming techniques in C# with our comprehensive Part 2 guide. Master inheritance, polymorphism, encapsulation, and more. Learn to create robust classes, utilize interfaces, and leverage abstract classes for efficient code design.
  67. Delve into essential Object-Oriented Programming (OOP) concepts with C# in Part 4. Learn about encapsulation, properties, constructors, and methods. Explore access modifiers and best practices for code organization. Enhance your C# skills through practical examples.
  68. Part 3 of our tutorial series delves deeper into Object Oriented Programming with C#. Explore advanced concepts like inheritance, polymorphism, and encapsulation. Master class hierarchies, method overriding, and the power of abstraction to build efficient and scalable applications.
  69. Delve deeper into Object-Oriented Programming with C# in Part 5 of our series. Explore advanced concepts like inheritance, polymorphism, and encapsulation, empowering you to build robust and efficient applications.
  70. Explore advanced concepts in Object-Oriented Programming (OOP) with C# in Part 6 of this series. Learn about inheritance, polymorphism, interfaces, and abstract classes. Understand method overriding, encapsulation, and design patterns.
  71. Generics in C# allow you to define classes, methods, and interfaces with a placeholder for the type of data they store or use. This flexibility enables you to write more general and reusable code.
  72. This article provides logic for Mapping the SQL Result to C# Class. This code snippet demonstrates the dynamic mapping of SQL result columns to C# properties, converting SNAKE_CASE SQL column names to PascalCase C# properties using MapToList for DbDataReader to object mapping.
  73. C#'s HashTable is a data structure storing key-value pairs using a hash function for fast retrieval. It handles collisions via chaining, ensuring efficient insertion, deletion, and retrieval operations. With automatic resizing and a dynamic load factor, it offers scalability while maintaining performance.
  74. Pagination is a common technique used to manage and display data in chunks. This article discusses implementing pagination in C# using extension methods, which allow adding new functionality to existing types without modifying their source code, making data handling clean and reusable.
  75. Master the fundamentals of C# with if statements. Learn to control program flow based on conditions, enabling dynamic decision-making in your code efficiently."
  76. Learn about Action and Func Delegates in C# with an app sample. In C#, delegates like `Action` and `Func` enable methods to be treated as objects, promoting flexible, modular, and reusable code through dynamic method invocation and functional programming paradigms.
  77. In this article, we will learn about the usage of required keywords in C#. In C# 11, the `required` keyword enforces the initialization of properties and fields within classes, records, or structs, enhancing code reliability by preventing uninitialized members and ensuring data integrity.
  78. Learn about the versatile "for" loop in C#. Master the syntax and applications of this essential control structure for iterating through arrays, lists, and more. Explore loop optimization, nested loops, and how to efficiently manage repetitive tasks in C#.
  79. Learn how to use the switch statement in C# for efficient control flow. Explore its syntax, including case labels, break statements, and default handling. Discover how to leverage switch with enums and expressions for concise and structured decision-making in your code.
  80. The LOCK keyword is the most popular mutual-exclusive thread synchronization construct. The LOCK statement in C# is crucial for thread synchronization, preventing race conditions by restricting access to shared resources. Under the hood, it translates to the Monitor class, enhancing code efficiency and reliability.
  81. Dive deep into abstraction in C#, exploring OOP concepts like encapsulation, inheritance, and polymorphism. Learn about abstract classes, interfaces, generics, and advanced features like delegates and events, enhancing code modularity and scalability.
  82. The Strategy Pattern in C# facilitates flexible behavior encapsulation by defining a family of algorithms, encapsulating each one, and making them interchangeable. This promotes code reuse and simplifies maintenance.
  83. The Monitor class is built on dotNET’s FCL (Framework Class Library) infrastructure. In general, it provides to achieve thread safety.
  84. C# compilation, from syntactic and semantic analysis to optimization techniques. Learn how the Common Language Runtime (CLR) executes compiled code and discover the role of the Just-In-Time (JIT) compiler.
  85. Explore Object-Oriented Programming in C# through a practical journey. Learn key concepts like inheritance, polymorphism, and encapsulation while working on real-world projects. Master C# development with hands-on examples, SOLID principles, and design patterns in Visual Studio and .NET framework.
  86. Inheritance in C# allows classes to inherit properties and behavior from other classes, facilitating code reuse and creating a hierarchy of classes. Beginners learn to establish relationships between classes, leverage base, and derived classes, and implement polymorphism for flexible and efficient code structures."
  87. In this tutorial, we will learn how to implement Railway-Oriented programming with Result Design Pattern. Railway-oriented programming enhances error handling by structuring code like a railway track. Result types replace exceptions for expected errors, ensuring clear and manageable flows.
  88. This article will explore each SOLID principle and demonstrate how they can be applied in C#.
  89. This article delves into Railway-oriented Programming (ROP), a functional approach to error handling and data flow. It compares ROP to exceptions, offers a C# implementation, and discusses its benefits and considerations.
  90. In this article we will see how we can calculate Checksum Using the Verhoeff algorithm. This article introduces the Verhoeff algorithm, a method for ensuring data integrity, particularly in sensitive applications like financial transactions.
  91. This article compares Scrutor and Autofac, two popular dependency injection (DI) libraries in C# projects. Scrutor focuses on convention-based registration, while Autofac offers advanced configuration and extensive features for complex scenarios.
  92. This article introduces leveraging C# for importing CSV data into SQL Server databases. It outlines the benefits of using C# and provides a step-by-step guide along with a practical example script.
  93. Explore the Proxy Pattern in C#, a structural design pattern facilitating controlled access to an object. Enhance security, logging, and lazy initialization for efficient client-server communication and remote object access.
  94. This article explores the concept of immutability in C#, highlighting its benefits and implementation techniques. It covers creating immutable objects using read-only properties, readonly fields, and returning new instances in methods, along with the pros and cons of immutability.
  95. Writing clean code is important so that it makes reading code easier, helps us fix and update it faster, and ensures it works smoothly and reliably. Here we will look for few tips to write clean code.
  96. A composite design pattern is a structural design pattern. It allows developers to create multiple nested objects of the same type to complete one single system hierarches Players in this pattern.
  97. Learn structured logging using Serilog and Seq in this comprehensive guide. Explore how to set up Serilog for .NET applications and integrate with Seq for centralized log management.
  98. This article explores thread pooling in C#, focusing on its efficiency benefits in concurrent programming. It discusses its importance, implementation using C#, and best practices for optimal performance and scalability.
  99. This article demonstrates several techniques to produce a string by modifying an existing string. You can examine the original string and the new, modified string when you run each example.
  100. Searching for substrings within strings is a fundamental operation in software development, and in the context of C# programming, there are several techniques and methods available to accomplish this task efficiently. In this article, we will explore various string searching techniques in C#.