ASP NET Core Main Method | Project Structure

ASP NET Core Main Method | Project Structure

We will learn:

• ASP.NET core web application [Type:Blank] project file
• ASP.NET core Main Method
• Application go through
• Basic Requirement
• Microsoft Visual Studio 2019 with ASP.NET Core 3.1

Suggested Videos:
Create ASP.NET Core App & Discussion on available Template
What is ASP.NET Core Blazor?

Project File

• If the project is created with
• C# language means solution extension will be .csproj
• VB language means solution extension will be .vbproj
• Content of project files has been changed a lot in asp.net core
• No file and folder reference in project file
• Now all files and folder will be displayed in the solution explorer
• Immediately changes will be accepted by the file system and the solution
• Similarly for delete operation and subfolder as well
• No unload requires and traditional approach gone
• All dependencies are mentioned under dependencies node
• Right click on project name and Edit Project file

• Target Framework: To specify the target framework we use this element <TargetFramework>
• To specify a target framework we use Target Framework Moniker (TFM).
• netcoreapp3.1 is the Moniker for .NET Core 3.1.
• We have selected .NET Core 3.1 as the target framework from the New Project Dialog box at the time of project creation.
• AspNetCoreHostingModel : There are two types of hosting model in asp.net core InProcess or OutOfProcess.
• InProcess means host our asp.net core app inside of the IIS worker process (w3wp.exe).
• OutOfProcess  means ASP.NET Core app running on the Kestrel server.
• We will discuss in detail in our upcoming videos.

Check Version

• Microsoft.AspNetCore.App: All the features of ASP.NET Core 3.1 and Entity Framework Core are included in this Microsoft.AspNetCore.App package. The default project templates targeting ASP.NET Core 3.1.
• You can check the version through right click on the dependency and click on properties.

Main Method() – Pogram.cs

• In the .Net core application, we have program.cs file and in that we have a main method.
• It is just like .Net console application main method which was the starting point
• .Net core app initially start with console app, it also start with Main method.
• As you can see it configure the .net core app with host build and run method.
• Call CreateHostBuilder and return the IHostBuilder object, call the build method which builds a web host for .net core app
• Now Run method is called and app start and listening to the HTTP request.
• CreateDefaultBuilder() method creates and set up a web host with pre-configured defaults.

Configue() – Startup.cs

• In the .Net core application, we have Startup.cs file
• Startup class is also configured by the UseStartup() extension method of IWebHostBuilder class. This class has 2 very imp methods and those are called by the runtime.
• ConfigureServices() –to add service to the container,
• Configure() - Use this method to configure the HTTP request pipeline.

Next : ASP.NET Core Hosting [in/out] process