Web pages (single-page model)

. NET is a set of frameworks for HTML, JS, CSS, and server-side scripting to build Web pages and websites.

There are three development modes: Web pages (single-page model), MVC (Model View Controller), Web Forms (event-driven model)

Introduction to Web Forms

1. The simplest model of ASP.

2, similar to PHP and ASP

3. Built-in templates and helpers for databases, videos, social media, and more.

MVC

MVC divides a Web application into three different components:

1, the model for the data

2. View for Reality

3, for the input controller

Web Forms

1. The traditional ASP. NET event-driven development model.

2. Added Web pages for server controls, server events, and server code.

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1. Web Pages (using Razor syntax)
2. MVC (Model View Controller)
3. Web Forms (Legacy ASP. NET)

What is Razor?

1. Razor is a markup syntax for adding server-based code to a Web page
2. Razor has the capability of traditional ASP., but is easier to learn and easier to use
3. Razor is a server-side markup syntax similar to ASP and PHP
4. Razor support for C # and Visual Basic programming languages

C # 's main Razor syntax rules

1. Razor code block surrounded by @{...}
2. In-line expressions (variables and functions) start at @
3. The code statement ends with a semicolon
4. Variables are declared by var keyword
5. Strings are surrounded by references.
6. C # code is case sensitive
7. C # files have the. cshtml extension.

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Example code:

<! DOCTYPE html>The whole work of the Ps:razor code is to detect the current time on the server and then display it.

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<!--single-line code block-->@{var mymessage = "Hello World";}  <!--multiple lines of code block-->@{var greeting = "Welcome to our site!"; var WeekDay = Datetime.now.dayofweek;var GreetingMessage = greeting + "Today is:" + WeekDay;} <p>the greeting is: @greetingMessage </p>

Web pages (single-page model)