Getting Started with .NET Core

  • .NET Core is a free and open source cross-platform version of .NET for building websites, services, and console apps.
  • The project is primarily developed by Microsoft and released under the MIT License.
  • .NET Core Version 3.0.0 was released on September 23 2019.
  • To use .NET Core 3.0 with Visual Studio, you need Visual Studio 2019 v16.3 or later.

In this article, I will show how to get started with .NET Core Console application and ASP.NET Core Web Application from Windows Console.

.NET Core Console Application

Step 1: Download and install the .NET SDK (Software Development Kit)

Step 2: Check the software installed correctly or not by running the below command from windows console

Usage: dotnet [options]
Usage: dotnet [path-to-application]
  -h|--help         Display help.
  --info            Display .NET Core information.
  --list-sdks       Display the installed SDKs.
  --list-runtimes   Display the installed runtimes.
  The path to an application .dll file to execute.
To see the .NET Core information run dotnet --info

Step 3: Now run the below command to create the new .NET Core console app

C:\Users\Girish>dotnet new console -o myConsoleApp

Now the console app will be created. Now go to the myConsoleApp and type dir to see the list of files it was created.

Directory of C:\Users\Girish\myConsoleApp
04-10-2019  02:01 PM    <DIR>          .
04-10-2019  02:01 PM    <DIR>          ..
04-10-2019  02:01 PM               178 myConsoleApp.csproj
04-10-2019  02:01 PM    <DIR>          obj
04-10-2019  02:01 PM               194 Program.cs

Step 4: Now type the below command to run the program

C:\Users\Girish\myConsoleApp>dotnet run
Hello World!

Step 5: Let us modify the Program.cs code as below and run the program once again. Update the code as shown below

using System;

namespace myConsoleApp
    class Program
        static void Main(string[] args)
            Console.WriteLine("Welcome to .Net Core Hello World! Console Application");


Now save the file and run the application once again from command prompt.

C:\Users\Girish\myConsoleApp>dotnet run
Welcome to .Net Core Hello World! Console Application

ASP.NET Core Web Application

Step 1: Run the below code to create the application

C:\Users\Girish\>dotnet new webApp -o myNewWebApp --no-https
  • The webApp parameter selects what template to use when creating your app.
  • The -o parameter creates a directory named myWebApp where your app is stored.
  • The --no-https flag specifies not to enable HTTPS.

Step 2: To see the list of files created, enter the dir command as show below

Directory of C:\Users\Girish\myNewWebApp

04-10-2019  02:11 PM    <DIR>          .
04-10-2019  02:11 PM    <DIR>          ..
04-10-2019  02:07 PM               146 appsettings.Development.json
04-10-2019  02:07 PM               192 appsettings.json
04-10-2019  02:11 PM    <DIR>          bin
04-10-2019  02:07 PM               183 myNewWebApp.csproj
04-10-2019  02:11 PM    <DIR>          obj
04-10-2019  02:07 PM    <DIR>          Pages
04-10-2019  02:07 PM               719 Program.cs
04-10-2019  02:07 PM    <DIR>          Properties
04-10-2019  02:07 PM             1,445 Startup.cs
04-10-2019  02:07 PM    <DIR>          wwwroot


Step 3: Now type the below command to run the application

C:\Users\Girish\myNewWebApp>dotnet run

Now the application is hosted locally and use http://localhost:5000/ in the browser to see the application

Step 4: Update the code inside the file myNewWebApp\Pages\Index.cshtml and Add the below h1 tag code inside the div tag

<h1> Welcome to ASP.NET Core Web Application </h1>

Step 5: Now save and run the application once again. Press Ctrl + C to shutdown the application



Learn more about .NET Core features in our upcoming blog articles.

Happy Learning!