Share ASP.NET study notes (1)--WebPages Razor-C#.Net Tutorial-php.cn

Share ASP.NET study notes (1)--WebPages Razor

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Release： 2017-05-24 17:56:08

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In this tutorial, we will use Razor markup with C# and Visual Basic code.

What is Razor?

Razor is a markup syntax for adding server-based code to web pages

Razor has the functionality of traditional ASP.NET markup, but is easier to use and easier to learn

Razor is a server-side markup syntax, much like ASP and PHP

Razor supports C# and Visual Basic programming languages

Add Razor code

Remember the above The web page in the example chapter:

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Web Pages Demo</title>
</head>
<body>
<h1>Hello Web Pages</h1>
</body>
</html>

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Now add some Razor code to the example:

Example

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Web Pages Demo</title>
</head>
<body>
<h1>Hello Web Pages</h1> 
<p>The time is @DateTime.Now</p>
</body>
</html>

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The page contains normal HTML markup, but otherwise , and also adds an @-marked Razor code.

Razor code can complete a variety of actions on the server in real time and display the results. (You can specify formatting options, otherwise only the default items are displayed.)

Main Razor C# syntax rules

Razor code blocks are enclosed in @{ ... }

Inline expressions (variables and functions) start with @

Code statements end with semicolon

Variables are declared using the var keyword

Strings are enclosed in quotes

C# Code is case sensitive

C# The file extension is .cshtml

C# Example

<!-- Single statement block -->
@{ var myMessage = "Hello World"; }
<!-- Inline expression or variable -->
<p>The value of myMessage is: @myMessage</p> 
<!-- Multi-statement block -->
@{
var greeting = "Welcome to our site!";
var weekDay = DateTime.Now.DayOfWeek;
var greetingMessage = greeting + " Today is: " + weekDay;
}
<p>The greeting is: @greetingMessage</p>

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Main Razor VB syntax rules

Razor code blocks are contained in @Code ... End Code

Inline expressions (variables and functions) start with @

Variables are declared using the Dim keyword

Strings are enclosed in quotation marks

VB code is not case-sensitive

The extension of the VB file is .vbhtml

Example

<!-- Single statement block --> 
@Code dim myMessage = "Hello World" End Code
<!-- Inline expression or variable --> 
<p>The value of myMessage is: @myMessage</p> 
<!-- Multi-statement block --> 
@Code
dim greeting = "Welcome to our site!" 
dim weekDay = DateTime.Now.DayOfWeek 
dim greetingMessage = greeting & " Today is: " & weekDay
End Code 
<p>The greeting is: @greetingMessage</p>

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[Related recommendations 】

1. ASP.NET free video tutorial

2. Share ASP.NET study notes--WebPages introduction

4. What is ASP.NET MVC? Summary of ASP.NET MVC

5. In-depth understanding of the differences between ASP.NET MVC and WebForm

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