C#, known as C sharp, is a general-purpose modern and object-oriented programming language. Microsoft created it under the leadership of Anders Hejlsberg and his team as part of the.Net initiative. It was approved by the European Computer Manufacturers Association and the International Standards Organization (ISO). C# is one of the languages that make up the Common Language Infrastructure. The current version is 7.2. C# is very similar to Java syntax and is accessible by users with knowledge of C++, Java or C++.

Washington Website Design Development Agency

Here’s a little bit about the.Net Framework

Multi-platform applications such as.Net can be used with languages like C++ and C#. It has been designed so other languages can also use it.

Learn more about the.Net Framework

Why C#?

C# is in high demand because of many other reasons. Below are a few of these reasons:

It is easy to get started: C# is a high-level language close to C++ and Java.

C# is widely used to develop Desktop and Web Applications: C# is used extensively for developing desktop and web applications. It is a popular language used in professional desktops. C# is the first language to use if you want to make Microsoft apps.

Community: The better the community, the more software and tools will be developed to improve it. C# is a community-based programming language. This allows for the development of new tools and software to help it thrive in the system.

Washington Website Design Development Agency is a widely-used language in game development. It will continue to be a dominant tool. C# is compatible with Microsoft and has a broad target audience. C# features like interfaces, automatic garbage collection, object-oriented, and object-oriented are all part of C#. Make C# a popular game-developing language.

Programming with C#:

Locating a Compiler

Many online IDEs are available, such as CodeChef ide and GeeksforGeeks. These can be used to run C# programs without needing installation.

Windows: The C# programming language is part of the.Net framework initiative at Microsoft. It provides several IDEs for running C# programs, including Microsoft Visual Studio Express, Visual Studio Express and Visual Web Developer.

Washington ui and ux design and development for website

Linux: Mono can run C# programs under Linux.

Programming in C#

C# is syntactically very similar to many other languages, making it easier to learn and code in C#.

C# can be used in many text editors such as Notepad++, Gedit, and others to create programs. or any other compiler. Save the program file after you have finished writing it.

Example: A simple program to print Hello Geeks

Hello Geeks

Explanation:

1. Washington Website Design Development Agency: Comments can be used to explain code similarly to Java, C or C++. Compilers ignore comments and do not execute them. Comment entries can be one-line or multi-line.

One-line comments:

Syntax:

2. System: The keyword includes the System namespace in the program.

Namespace declaration: A namespace can be described as a collection or group of classes. HelloGeeksApp contains the class HelloGeeks.

3. Washington ui and ux design and development for website: This class includes the data and methods used in the program. The methods define the behavior of the class. Only one method is available for Class HelloGeeks, similar to JAVA.

4. static void Main(): This static keyword indicates that the method can be accessed without instantiating a class. 5. void keywords indicate that the method will not return any results. The Main() method is our entry point. The Main() method specifies its behavior with the statement Console in our program.WriteLine(“Hello Geeks”); .

6. Console.WriteLine(): This Method is part of the Console class that’s defined in the system Namespace.

7. Console.ReadKey() is for VS.NET users. This causes the program to wait until a key is pressed, stopping the screen from closing and dashing.

C# is case-sensitive. All statements and expressions must be ended with a semicolon (;).

Advantages of C#

The system can be managed with C# very efficiently. C# automatically collects all garbage.

C# has a high memory backup, so there is no memory leak.

Maintenance costs are lower, and the language is more reliable than other languages.

C# code can be compiled into an intermediate language (Common (.Net?) Intermediate Language), independent of the target operating system or architecture.

Advantages of C#

Washington ui and ux design and development for website is not as flexible because it relies heavily on the.Net Framework.

Washington Website Design Development Agency is slow and needs to be compiled every time any changes are made.

Applications:

C# is used widely to develop desktop and web applications and web services.

It is used to create large-scale Microsoft applications.

Unity also uses C# for game development.

Prerequisite: Introduction to C#

Washington creative website design and development

C#, known as C sharp, is a general-purpose modern and object-oriented programming language. Microsoft created it under the leadership of Anders Hejlsberg and his team as part of the.Net initiative. It was approved by the European Computer Manufacturers Association and the International Standards Organization (ISO). C# is one of the languages that make up the Common Language Infrastructure. The current version is 7.2. C# is very similar to Java syntax and is accessible by users with knowledge of C++, Java or C++.

The Basic Components of setting up an environment in C#

.Net Framework

Washington creative website design and development

The.NET Framework provides a platform to build, deploy, and run Web Services and other applications. Installing a.NET Framework component to your system is required to run C# programs or any other program. .NET supports many programming languages, including Visual Basic and Visual C++. C# is also included in the.NET Framework. It consists of two components:

Typical Language Runtime: CLR is the Common Language Runtime in the.NET Framework. This environment runs the code. It offers services that make development easy.

Framework Class Library (FCL): This is a collection of classes, value types and interfaces that allow access to system functionality.

Washington creative website design and development Operating System defaults to installing.NET Framework. Click on.NET Framework Versions to learn more. Microsoft Document.

Visual Studio IDE

Microsoft provides Visual Studio, an IDE (Integrated Development Environment) tool to help you develop applications in different programming languages like C#, VB(Visual Basic), etc. Microsoft licenses Visual Studio to be used commercially. Microsoft provides a free Visual Studio Community Version for learning purposes (noncommercial).

Steps to Setup C# Environment For Windows

Step 1: Washington Website Design Development Agency Visual Studio Community Version

Step 2: Run the.exe file. Follow the instructions to install the Visual Studio Community Version.

Step 3: Select “.Net Desktop Development” from the available options, then click on the Install button in the bottom right corner.

Step 4: Once you have opened it, you will be asked to sign in. You can skip the sign-in step.

Step 5: A dialog box will open asking for your choice of Development Settings and color theme. After selecting the required options, click Start Visual Studio, as shown below.

.

Step 6: Create a new console app using C#. Go to File->New ->Project, as shown below

vs2-1

Step 7: Select Console App, enter the name of your Project, select the location path to save the files, and click OK as shown below.

Step 8: Click OK to receive a predefined template and write C# code.

Washington creative website design and development Class in C# provides information about the current platform. It also manipulates the platform. It can be used to retrieve and set various operating system-related information. It can retrieve information about command-line arguments, exit codes, environment variables settings, call stack contents, time since the last system boot in milliseconds, and more. By just using some predefined methods, we can get information about the Operating System using the Environment class and the GetEnvironmentVariable() Method is one of them. This method is used for finding the environment variables. There are two ways to overload it:

1. GetEnvironmentVariable(String): This Method is used to find the environment variables of the current process. It will return all environment variables along with their values. Remember that the name of an environment variable can be case-sensitive in macOS or Linux but not in Windows.

Syntax:

Public static string? GetEnvironmentVariable (string var string);

The string type var string parameter will represent the environment variable’s name.

Return: Washington Website Design Development Agency will return the name and value of the environment variable. Return null if the environment variable isn’t found.

Washington seo website design and development

Exceptions: This Method will throw this exception:

SecurityException: This exception is only for those who do not have permission to operate.

ArgumentNullException: This exception occurs when the variable is null.

Washington seo website design and development

2. GetEnvironmentVariable(String, EnvironmentVariableTarget): This Method is used to find the environment variables of the current process or from the Windows OS registry key for the local machine or current user. Remember that the name of an environment variable can be case-sensitive in macOS or Linux but not in Windows.

Syntax:

Public static string? GetEnvironmentVariable (string varstr, EnvironmentVariableTarget t);

This method will have two parameters named varsity and t. Here, varstr represents the environment variable’s name, and t represents the EnvironmentVariableTarget value.

Return: This will return the name and value of the environment variable. Return null if the environment variable isn’t found.

Exceptions: This Method will throw this exception:

SecurityException: This exception is only for those who do not have permission to operate.

ArgumentNullException: This exception occurs when the variable is null.

ArgumentException: This exception occurs when the target is not a valid EnvironmentVariableTarget value.

Washington seo website design and development Class in C# provides information about the current platform. It also manipulates the platform. It can be used to retrieve and set various operating system-related information. It can retrieve information about command-line arguments, exit codes, environment variables settings, call stack contents, time since the last system boot in milliseconds, and the time since then. The Environment class provides information about the Operating System. This information can be obtained by using predefined methods. This article will show you how to find the path to the system directory. We use the SystemDirectory property in the Environment Class. This property returns the complete path to the system directory.

Washington Website Design Development Agency Class in C# provides information about the current platform. It also manipulates the platform. It can be used to retrieve and set various operating system-related information. It can retrieve information about command-line arguments, exit codes, environment variables settings, call stack information and the time since the last system reboot in milliseconds. This article will show you the logical drives for your computer system. This problem can be solved using the Environment Class’s GetLogicalDrives() method. This method will return the list of logical drives in your computer. It will return an array of drives in string format.

Environment Class gives information about the current platform. It can also manipulate the platform. It can be used to retrieve and set various operating system-related information. It can be used to retrieve command-line argument information and exit code information. The contents of the call stack can also be retrieved. The Environment class can get the hostname or machine name using the predefined MachineName Property. This property is used for finding the NetBIOS name. It also throws InvalidOperationException when this property does not get the computer’s name.

Washington seo website design and development Class in C# provides information about the current platform. It also manipulates the platform. It can be used to retrieve and set various operating system-related information. It can retrieve information about command-line arguments, exit codes, environment variables settings, call stack contents, time since the last system boot in milliseconds, and the time since then. The Environment class can be used to retrieve information about the Operating System. This article will show you how to find the network domain name associated with the current user. We use the Environment class’ UserDomainName property. This property retrieves the network domain name associated with the current user. It will throw PlatformNotSupportedException if the OS does not allow retrieving the network domain name or InvalidOperationException if this property does not retrieve the network domain name.

Code Explanation

We calculated the circle area using the formula p* r* r. In which r is the radius, and p is the mathematical constant Pi. As input, we will use the radius value provided by the user. We have two options for p: either we can define a variable to assign it to a particular decimal place or use Math.PI constants that are available in C#.

The radius is doubled to maintain the radius of the circle.

To save area, the area is doubled.

The last area is kept in the double area.

Washington website design and development affordable

We are now writing down the area for a circle.

If there are two classes, A and B and A is derived from B, then when an object of B is assigned to an object A, all attributes of B are removed to create the base class object (class B object). This is simply cutting or removing extra components from a derived object. It is called object slicing.

You might be asking why we need to prioritize objects when everything is stored within the class. But this is where most coders make mistakes. The memory value is stored only in an object of a Class and not in the class itself. Hypothetically, suppose we have 20 KB of space and have to add both Class A (and Class B) objects. If the object of Class A consumes space of 20 Kb, then the object in Class B will automatically be cut.

Washington website design and development affordable

Explanation: We have two classes in the code above:

Class A

Class B

Class A: This function is called fun1 and prints the phrase “Function 1” to the console.

Class B: This function is called fun2 and prints the phrase “Function 2” to the console. It inherits from class A, so it can also use fun1.

The function test now takes one parameter from type A. It will pass an object of type A to the function, but it will fail due to object slicing. Fun2 cannot be executed within the function test. This is because the object member functions do not contain the function it needs.

Reason: A child instance can have a memory size more than or equal to the parent class. This is because the child class contains all of the attributes and functions of the parent class and can include additional attributes and functions.

Washington website design and development affordable we create an instance from the parent class and assign it an instance of the child, there won’t be enough memory to store all the attributes and functions for the child class instance.

It then strips all of the functions and attributes from the child-class instance to create the parent-class instance, which only has the functions and attributes found in the parent.

Please refer to the Object Slice in C++ article for more information.

The code above creates the same example as before, but this time with C#.

We will notice that we still can’t use notSlicedObject.fun2(), so what is the difference?

Washington Website Design Development Agency is because notSlicedObject refers to an object of type “A,” so it cannot use methods or attributes that are not bound to that type.

We can change the reference type to refer to an object of type B, and then we can access methods and attributes bound to type B.

Notably, casting the reference type did not change the object’s type. The only thing that changed was the reference to it. Because the object was never modified, it didn’t need to be cut off.

You can only change the type reference that refers to an object. For example, if the reference is referencing an A object, it has access to all the attributes and methods an A object would have. However, if the reference is referencing a B object, the reference will have access to only the attributes and methods a B object would have.

This type of conversion/casting can only be done to classes with an inheritance relationship, such as the one above. Otherwise, you will need to define it explicitly.

The object is stored on the heap, while a reference is kept in the mc variables.

This Washington website design and development affordable that when we attempt to assign a class instance to parent class instances, what happens is that we assign the reference value of a class instance to a variable of a parent type.

Because references only store the memory address of an object in a heap, all references are the same size (typically 4 bytes for 32-bit CPU architecture, 8 bytes if 64-bit), it is easy to assign or cast the type reference without having to slice off the object. We don’t store its value directly in our memory but use references.

When we deal with class objects, we don’t refer to them directly. Instead, we refer to them via references or pointers. This is why object slicing in C# doesn’t occur, unlike in other programming languages such as C++, where object slicing may happen.

Washington business website design and development

Fully object-oriented languages can represent everything as objects but cannot differentiate between primitive types of classes and objects of classes. However, C# isn’t purely object-oriented because it supports many procedural programming concepts like pointers. An object is a fundamental unit of Object Oriented Programming. It represents real-life entities. C# programs create many objects that, as you may know, can be used to invoke methods. These are the ways you can create objects in C#:

1) The ‘new operator: A class can be described as a reference type. At run time, all objects of that type are assigned null values unless declared with the new operator. The new operator allocates memory space to an object only during runtime, which is dynamic.

Referring to an Existing Object: A reference can only be declared with the class name or reference name. The reference cannot exist by itself. It must be assigned to an object of the same type. Any modifications made to the reference will be saved to that object. It’s a bit like an alias.

An array of objects can be created if you have multiple objects of the same type. In this example, you must declare the array and initialize each object. For initialization, you can use for loop.

This method converts Unicode characters to lowercase equivalents using the casing rules for the invariant culture.

Here, c represents the Unicode character that you want to convert.

Return Value: If c is already lowercase, it returns the alphabetic equivalent in lowercase.

CharEnumerator.The getType () method is used to get the current instance type. The Object Class inherits this method.

Substring() in C# is a string method. This method is used to retrieve substrings from the current string instance. You can overload this method by passing more parameters.

This method retrieves substrings from the current string instance. The parameter “startIndex,” specifies the starting position for the substring, which will allow the substring to continue until the string’s end.

Parameter: This Method only accepts one parameter, “startIndex.” This parameter will indicate the starting position for the substring to be retrieved. This parameter’s type is the system.Int32.

Return Value: This Method returns the substring that begins at the startIndex and continues until the end. The return value type for this Method is System. String.

Washington business website design and development: If startIndex is less than zero or greater than the length of the current instance, then it will arise ArgumentOutOfRangeException.

String.Substring Method (int startIndex, int length)

This method extracts a substring starting at a given position described by the parameter startIndex. It also has a specific length. It will return nothing substring if startIndex equals the length of the string or the parameter length is zero.

Parameter: This Method accepts two parameters, “startIndex” or “length.” The first parameter will indicate the starting position of substrings that must be retrieved, while the second parameter will indicate the length of substrings. Both parameters are system.Int32.

Return Value: This Method returns the substring that begins at a given position. The substring will also have a specified length. The return value type for this Method is System. String.

Washington Website Design Development Agency: This Method can cause ArgumentOutOfRangeException in two conditions:

If the length or startIndex of the parameters is less than zero.

Washington business website design and development + length means that the position is not in the current instance.

.NET has fulfilled Microsoft’s goal of providing developers with a single platform that can solve all problems. The the.NET platform has been powering the web, desktop and mobile apps in the startup and enterprise sectors for a few decades.

.NET is a crucial component of the software development industry. It is no surprise that.NET this is so prevalent in the community of developers. It can be measured by the number of open-source projects worldwide and the inclusion of C# among the top five programming languages. C#’s popularity will continue to rise, especially with the release of.NET 5, which pioneered the concept of universal software development.

Washington cheap website design and development

Let’s look at some technical foundations of.NET to understand its power.

What is.NET?

.NET is an open-source platform that allows you to build many different types of applications. Microsoft designed the platform, which supports multiple programming languages and libraries for building web, desktop, IoT, and mobile applications.

Washington cheap website design and development

.NET 5 platform

Although C# is the primary programming language for.NET, you can also use other languages. Microsoft directly supports these languages:

C# (C sharp): An object-oriented programming language part of the C language family. Its syntax might be familiar to JavaScript, JavaScript, C++ and Java developers.

F# (F sharp) is a functional-oriented programming language member of the ML family. It supports object-oriented programming.

Visual Basic: A historical Microsoft programming language. It is now an object-oriented programming language in the context of.NET.

.NET supports Common Language Infrastructure (CLI). This means that your source code can be compiled into a Common Intermediate Language (CIL), regardless of your programming language. This ensures excellent interoperability among languages on the platform.

Besides the languages mentioned above, many programming languages can be compiled into the.NET CIL. Microsoft supports ClojureCLR, ClojureCLR Eiffel, IronPython PowerBuilder and many other languages. This page contains a complete list.

Washington cheap website design and development Architecture and Components

.NET lets you create a variety of application types. These include desktop and command-line applications as well as web and mobile applications.

Its modular and optimized architecture makes this possible.

.NET Components

Two components are the basis of the.NET architecture:

CoreCLR is the.NET runtime. It executes CLI programs and also includes a just-in-time compiler.

CoreFX is the platform’s API that implements the CLI Standard Libraries. This library set provides the most commonly used functionalities, such as file system management and exception handling. Sometimes, the CoreFX component can be called the Unified Base Class Library.

.NET Application Models

You also have different application model frameworks. These are the libraries that allow you to develop different types of apps. For example, there are:

ASP.NET is the Framework that lets you build web apps and web APIs.

Washington cheap website design and development Presentation Foundation (WPF) is a graphical user interface that allows you to use Windows desktop applications.

Xamarin is the Framework for building cross-platform mobile, desktop, and TV applications.

Blazor: A framework for building client web apps using C#. You can also generate client web applications in WebAssembly.

ML.NET is a machine learning framework that makes integrating machine learning models into your.NET applications easier.

.NET supports most common programming tasks, including file management, network communication, security, and database access. It supports socket programming, HTTP communication and gRPC on the network side. This allows you to create microservices using the protocol that best suits your needs.

You can also find many specific libraries in the NuGet repository for other requirements not covered by the Framework. NuGet is the package manager for.NET. You can create, share, or use the many.NET library for nearly any purpose.

Support for.NET Design and Development

The number of programming languages that.NET supports software development does not limit its support. .NET supports the best practices but allows you to use the method you prefer to build your software.

Washington professional website design and development

It encourages you, for example, to use dependency injection to separate your components. By limiting interdependence between components and facilitating reuse, dependency injection can help you design better software. It also makes it easier for you to test your components.

.NET supports integration and unit tests via xUnit.

Developers have many options when it comes to development experience. Developers can use the.NET environment to create new projects and add dependencies. They can also build, run, test, and modify existing ones.

Washington professional website design and development

Visual Studio Code is an intermediate tool that allows them to use the.NET CLI as a top-of-the-line editor. They can also use Visual Studio Code, a powerful IDE available for Windows and Mac. It provides an interactive programming experience.

No matter what tool you use, there are many project templates that you can use to create your application quickly. You can also create your.NET project templates.

From the.NET Framework up to the.NET Platform

Washington professional website design and development launched the.NET Project in 2002. The.NET goal has been to provide a platform that can be used with any programming language. Windows was the primary.NET goal as it was the first.

Microsoft submitted specifications for the.NET runtime infrastructure and the C# programming language to ECMA for standardization. This resulted in a few porting projects for other platforms, including Linux, embedded systems and mobile devices.

This led to the platform’s fragmentation, which sometimes confused developers. This article will provide more information about the evolution and future of.NET.

Let’s clarify some familiar concepts.

.NET Framework

The Washington professional website design and development Framework was the first version of.NET. It offers a variety of APIs to meet standard programming requirements and interfaces with the operating system. It is only compatible with Windows and will be discontinued after.NET 5.

Mono

Mono brings.NET to Linux computers. It is the most well-known porting Project based on the.NET standard specifications. Mono is intended to work with Linux applications that are compatible with the.NET Framework, but compatibility is not always assured. This is due to a few reasons: Some.NET Framework functions are too closely tied to Windows, and the Mono implementation often lags behind the newest.NET Framework capabilities.

Washington website design and development with seo

.NET Core

.NET Core is a complete rewrite of the.NET Framework to support cross-platform development. The redesigned architecture provides a common core for Windows, Linux, and Mac platforms. You can download the rest of these features as library packages.

Washington website design and development with seo

.NET Standard

The.NET Standard does not refer to another.NET implementation. It is a specification of.NET APIs that allows for cross-platform libraries. A library that supports a particular.NET Standard version on a platform will run on it regardless of device type or framework implementation (.NET Framework Mono,.NET Core).

.NET

The.NET name has been used to signify the universal development platform. There have been many different implementations since then, so the.NET name has created ambiguities. .NET 5 aims at making concrete the original vision of a universal platform for development. It replaces all the existing implementations, including.NET Framework,.NET Core and Mono. From.NET 5, only.NET will be available as a name or platform.

Auth0,.NET

Washington website design and development with seo offers extensive support for.NET, allowing you to integrate modern authentication and authorization into your.NET apps. This includes documentation, specific SDKs, blog posts, sample projects, and documentation. This section contains a list of all the.NET resources Auth0 offers.

.NET QuickStarts

Auth0 Quickstarts will help you set up your first authorization and authentication integration. These guides will help you add the code and configure the necessary settings. Logging in will allow you to access the code snippets specific to your account. Auth0 allows you to sign up without a charge if you do not have an account.

These.NET Quickstarts are available to you:

ASP.NET Core Web API v3.1 – This Quickstart enables you to add authorization using the standard JWT middleware to an ASP.NET Core Web API.

ASP.NET Core v3.1 Web Application: This Quickstart demonstrates how you can add user login to an ASP.NET Core Web Application.

Washington website design and development with seo/Windows Forms: This Quickstart guide will help you add user login Windows desktop C# apps.

Xamarin Quickstart: This Quickstart allows you to add user logins to Xamarin apps.

Windows Universal App Quickstart: This Quickstart will show you how to add user logins to Windows Universal C# apps.