ASP.NET Core 5.0 MVC中的 Razor 页面 介绍

<p>@Username</p>

<a href="mailto:Support@contoso.com">Support@contoso.com</a>

<p>@@Username</p>

 <p>@await DoSomething("hello", "world")</p>

<p>@GenericMethod<int>()</p>

<p>Last week this time: @(DateTime.Now - TimeSpan.FromDays(7))</p>

<p>Last week: @DateTime.Now - TimeSpan.FromDays(7)</p>

<p>Last week: 7/7/2016 4:39:52 PM - TimeSpan.FromDays(7)</p>

@{
    var joe = new Person("Joe", 33);
}
?
<p>Age@(joe.Age)</p>

 <p>@(GenericMethod<int>())</p>

@("<span>Hello World</span>")

<span>Hello World</span>

<跨越 > Hello World < /span>

@{
    var quote = "The future depends on what you do today. - Mahatma Gandhi";
}
?
<p>@quote</p>
?
@{
    quote = "Hate cannot drive out hate, only love can do that. - Martin Luther King, Jr.";
}
?
<p>@quote</p>

<p>The future depends on what you do today. - Mahatma Gandhi</p>
<p>Hate cannot drive out hate, only love can do that. - Martin Luther King, Jr.</p>

@{
    void RenderName(string name)
    {
        <p>Name: <strong>@name</strong></p>
    }
?
    RenderName("Mahatma Gandhi");
    RenderName("Martin Luther King, Jr.");
}

<p>Name: <strong>Mahatma Gandhi</strong></p>
<p>Name: <strong>Martin Luther King, Jr.</strong></p>

@{
    var inCSharp = true;
    <p>Now in HTML, was in C# @inCSharp</p>
}

@for (var i = 0; i < people.Length; i++)
{
    var person = people[i];
    <text>Name: @person.Name</text>
}

@for (var i = 0; i < people.Length; i++)
{
    var person = people[i];
    @:Name: @person.Name
}

@if (value % 2 == 0)
{
    <p>The value was even.</p>
}

@if (value % 2 == 0)
{
    <p>The value was even.</p>
}
else if (value >= 1337)
{
    <p>The value is large.</p>
}
else
{
    <p>The value is odd and small.</p>
}

@switch (value)
{
    case 1:
        <p>The value is 1!</p>
        break;
    case 1337:
        <p>Your number is 1337!</p>
        break;
    default:
        <p>Your number wasn‘t 1 or 1337.</p>
        break;
}

@{
    var people = new Person[]
    {
          new Person("Weston", 33),
          new Person("Johnathon", 41),
          ...
    };
}

@for (var i = 0; i < people.Length; i++)
{
    var person = people[i];
    <p>Name: @person.Name</p>
    <p>Age: @person.Age</p>
}

@foreach (var person in people)
{
    <p>Name: @person.Name</p>
    <p>Age: @person.Age</p>
}

@{ var i = 0; }
@while (i < people.Length)
{
    var person = people[i];
    <p>Name: @person.Name</p>
    <p>Age: @person.Age</p>
?
    i++;
}

@{ var i = 0; }
@do
{
    var person = people[i];
    <p>Name: @person.Name</p>
    <p>Age: @person.Age</p>
?
    i++;
} while (i < people.Length);

@using (Html.BeginForm())
{
    <div>
        Email: <input type="email" id="Email" value="">
        <button>Register</button>
    </div>
}

@try
{
    throw new InvalidOperationException("You did something invalid.");
}
catch (Exception ex)
{
    <p>The exception message: @ex.Message</p>
}
finally
{
    <p>The finally statement.</p>
}

@lock (SomeLock)
{
    // Do critical section work
}

@{
    /* C# comment */
    // Another C# comment
}
<!-- HTML comment -->

<!-- HTML comment -->

@*
    @{
        /* C# comment */
        // Another C# comment
    }
    <!-- HTML comment -->
*@

@attribute [Authorize]

@code {
    // C# members (fields, properties, and methods)
}

@functions {
    // C# members (fields, properties, and methods)
}

@functions {
    public string GetHello()
    {
        return "Hello";
    }
}

<div>From method: @GetHello()</div> 

<div>From method: Hello</div>

using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc.Razor;
?
public class _Views_Home_Test_cshtml : RazorPage<dynamic>
{
    // Functions placed between here 
    public string GetHello()
    {
        return "Hello";
    }
    // And here.
#pragma warning disable 1998
    public override async Task ExecuteAsync()
    {
        WriteLiteral("\r\n<div>From method: ");
        Write(GetHello());
        WriteLiteral("</div>\r\n");
    }
#pragma warning restore 1998

@{
    RenderName("Mahatma Gandhi");
    RenderName("Martin Luther King, Jr.");
}
?
@functions {
    private void RenderName(string name)
    {
        <p>Name: <strong>@name</strong></p>
    }
}

<p>Name: <strong>Mahatma Gandhi</strong></p>
<p>Name: <strong>Martin Luther King, Jr.</strong></p>

@implements IDisposable

<h1>Example</h1>

@functions {
    private bool _isDisposed;

    ...

    public void Dispose() => _isDisposed = true;
}

 @inherits TypeNameOfClassToInheritFrom

using Microsoft.AspNetCore.Mvc.Razor;

public abstract class CustomRazorPage<TModel> : RazorPage<TModel>
{
    public string CustomText { get; } = 
        "Gardyloo! - A Scottish warning yelled from a window before dumping" +
        "a slop bucket on the street below.";
}

@inherits CustomRazorPage<TModel>

<div>Custom text: @CustomText</div>

<div>
    Custom text: Gardyloo! - A Scottish warning yelled from a window before dumping
    a slop bucket on the street below.
</div>

@inherits CustomRazorPage<TModel>

@inherits CustomRazorPage<TModel>

<div>The Login Email: @Model.Email</div>
<div>Custom text: @CustomText</div>

<div>The Login Email: rick@contoso.com</div>
<div>
    Custom text: Gardyloo! - A Scottish warning yelled from a window before dumping
    a slop bucket on the street below.
</div>

@model TypeNameOfModel

@model LoginViewModel

public class _Views_Account_Login_cshtml : RazorPage<LoginViewModel>

<div>The Login Email: @Model.Email</div>

@using System.IO
@{
    var dir = Directory.GetCurrentDirectory();
}
<p>@dir</p>

 @<tag>...</tag>

public class Pet
{
    public string Name { get; set; }
}
 

@{
    Func<dynamic, object> petTemplate = @<p>You have a pet named <strong>@item.Name</strong>.</p>;
?
    var pets = new List<Pet>
    {
        new Pet { Name = "Rin Tin Tin" },
        new Pet { Name = "Mr. Bigglesworth" },
        new Pet { Name = "K-9" }
    };
}

@foreach (var pet in pets)
{
    @petTemplate(pet)
}

<ul>
    @Repeat(pets, 3, @<li>@item.Name</li>)
</ul>

<ul>
    <li>Rin Tin Tin</li>
    <li>Rin Tin Tin</li>
    <li>Rin Tin Tin</li>
    <li>Mr. Bigglesworth</li>
    <li>Mr. Bigglesworth</li>
    <li>Mr. Bigglesworth</li>
    <li>K-9</li>
    <li>K-9</li>
    <li>K-9</li>
</ul>