To create an object, you need to instantiate a class, or create a class instance. SampleClass sampleObject = new SampleClass(); // Set a property value. SampleClass sampleObject = new SampleClass { FirstProperty = "A", SecondProperty = "B" };
A class defined within another class is called nested. By default, the nested class is private. class Container { class Nested { // Add code here. } } To create an instance of the nested class, use the name of the container class followed by the dot and then followed by the name of the... » read more
Constructors Constructors are class methods that are executed automatically when an object of a given type is created. Constructors usually initialize the data members of the new object. A constructor can run only once when a class is created. Furthermore, the code in the constructor always runs before any other code in a class. However,... » read more
Classes Only: Can support inheritance Are reference (pointer) types The reference can be null Have memory overhead per new instance class SampleClass { } Structs Only: Cannot support inheritance Are value types Are passed by value (like integers) Cannot have a null reference (unless Nullable is used) Do not have a memory overhead per new... » read more
In c#, Method Overloading means defining a multiple methods with same name but with different parameters. By using Method Overloading, we can perform a different tasks with same method name by passing different parameters. Suppose, if we want to overload a method in c#, then we need to define another method with same name but with different signatures. In c#,... » read more
Basic Inheritance public class Animal{ public void Greet() { Console.WriteLine("Hello, I'm some sort of animal!"); }} public class Dog : Animal{ } Animal animal = new Animal(); animal.Greet(); Dog dog = new Dog(); dog.Greet();
The following access modifiers are available: C# Modifier Definition public The type or member can be accessed by any other code in the same assembly or another assembly that references it. private The type or member can only be accessed by code in the same class. protected The type or member can only be accessed... » read more
Windows Presentation Foundation (WPF) is a graphical subsystem by Microsoft for rendering user interfaces in Windows-based applications. WPF, previously known as “Avalon”, was initially released as part of .NET Framework 3.0 in 2006. WPF uses DirectX and attempts to provide a consistent programming model for building applications. It separates the user interface from business logic, and resembles similar XML-oriented object models, such as those implemented... » read more
View Model – Data View – XAML, bind to data-model Model – Business Logic MVVM facilitates a separation of development of the graphical user interface from development of the business logic or back-end logic (the data model) The Model View ViewModel (MVVM) is an architectural pattern used in software engineering that originated from Microsoft which is specialized in the Presentation... » read more
Domain-driven design (DDD) is an approach to software development for complex needs by connecting the implementation to an evolving model. The premise of domain-driven design is the following: placing the project’s primary focus on the core domain and domain logic; basing complex designs on a model of the domain; initiating a creative collaboration between technical and domain experts to iteratively refine a conceptual... » read more