The Razor syntax supports the Visual Basic language. Razor code blocks are enclosed in @{ ... } and inline expressions start with @. Variables are declared with var and strings use quotation marks. C# code is case sensitive and files have a .cshtml extension. Razor recognizes basic email and HTML syntax. Server-side comments use @* ... *@ syntax. Parentheses can make expressions explicit.

3. The Razor syntax also supports the Visual Basic language.
•Razor code blocks are enclosed in @{ ... }
•Inline expressions (variables and functions) start with @
•Code statements end with semicolon
•Variables are declared with the var keyword
•Strings are enclosed with quotation marks
•C# code is case sensitive
•C# files have the extension .cshtml

4. @{ int x = 123; string y = "because."; }
<% int x = 123; string y = "because."; %>
<span>@model.Message</span>
<span><%: model.Message %></span>
<span>
@Html.Raw(model.Message)
</span>
<span>
<%= model.Message %>
</span>
@foreach(var item in items) {
<span>@item.Prop</span>
}
<% foreach(var item in items) { %>
<span><%: item.Prop %></span>
<% } %>
@if (foo) {
<text>Plain Text</text>
}
<% if (foo) {%>
Plain Text
<% } %>

5. @using (Html.BeginForm()) {
<input type="text" value="input here">
}
<% using (Html.BeginForm()) { %>
<input type="text" value="input here">
<% } %>
@if (foo) {
@:Plain Text is @bar
}
Same as above
Hi philha@example.com
Razor recognizes basic email format and is smart enough not to treat the @ as a code delimiter
<span>ISBN@(isbnNumber) </span>
In this case, we need to be explicit about the expression by using parentheses.
<span>In Razor, you use the @@foo to display the value of foo</span>
@@ renders a single @ in the response.

6. @*
This is a server side multiline comment
*@
<%-- This is a server side multiline comment --%>
@(MyClass.MyMethod<AType>())
Use parentheses to be explicit about what the expression is.
@{
Func<dynamic, object> b =
@<strong>@item</strong>;
}
@b("Bold this")
Generates a Func<T, HelperResult> that you can call from within Razor.
Hello @title. @name.
Hello <%: title %>. <%: name %>.

7. <div class="@className"></div>
When className = null
<div></div>
When className = ""
<div class=""></div>
When className = "my-class"
<div class="my-class"></div>
<div class="@className foo bar"> </div>
When className = null
<div class="foo bar"></div>
Notice the leading space in front of foo is removed. When className = "my-class"
<div class="my-class foo bar"></div>
<div data-x="@xpos"></div>
When xpos = null or ""
<div data-x=""></div>
When xpos = "42"
<div data-x="42"></div>

8. <input type="checkbox" checked="@isChecked" />
When isChecked = true
<input type="checkbox" checked="checked" />
When isChecked = false
<input type="checkbox" />
<script src="~/myscript.js"> </script>
When the app is at /
<script src="/myscript.js"> </script>
When running in a virtual application named MyApp
<script src="/MyApp/myscript.js"> </script>