How to build net framework asp net app using dotnet


ASP.NET is a popular programming used for web applications. It is a part of the .NET framework and provides a powerful and flexible platform for developing dynamic websites and web services. In this article, we will explore how to build an ASP.NET app using the .NET framework.

Setting up the Environment

Before we start building our ASP.NET app, we need to set up the environment. First, make sure you have the .NET framework installed on your machine. You can download it from the official Microsoft website. Once installed, open your preferred Integrated Development Environment (IDE) such as Visual Studio or Visual Studio Code.

Creating a New ASP.NET Project

To create a new ASP.NET project, follow these steps:

  1. Open your IDE and select “Create a new project”.
  2. Choose the ASP.NET template that suits your needs. For example, you can select “ASP.NET Web Application” for a web app.
  3. Specify the project name and location.
  4. Click “Create” to create the project.

Understanding the ASP.NET Code Structure

When you create a new ASP.NET project, it generates a default code structure. Let's take a look at the main components:

  • : These are responsible for incoming and returning responses.
  • Views: These define the user interface and the data to the users.
  • : These represent the data and business logic of the application.

Writing ASP.NET Code

Now, let's dive into writing some ASP.NET code. Here's an example of a simple ASP.NET app that displays a “Hello, World!” message:

using System;
using System.Web.UI;

namespace HelloWorldApp
    public partial class Default : Page
        protected void Page_Load( sender, EventArgs e)
            Response.Write("Hello, World!");

In this example, we have a class “Default” that inherits from the “Page” class. The “Page_Load” method is called when the page is loaded, and it writes the “Hello, World!” message to the response.

Running the ASP.NET App

To run the ASP.NET app, follow these steps:

  1. Build the project to ensure there are no compilation errors.
  2. Click the “Start” button in your IDE to run the app.
  3. Open a web browser and navigate to the specified URL.


In this article, we have explored how to build an ASP.NET app using the .NET framework. We have covered the basics of setting up the environment, creating a new project, understanding the code structure, writing ASP.NET code, and running the app. With this knowledge, you can start building your own web applications using ASP.NET.

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