ASP. NET MVC3 Series Tutorial-Razor view engine basic syntax

Http://www.cnblogs.com/highend/archive/2011/04/09/aspnet_mvc3_razor_engine.html

4. All documents that begin with "_"

ASP. MVC3 By default, all _*.cshtml documents that have access addresses that begin with "_" are rejected. With regard to _*.cshtml documentation, he is a part of webpages, which will be described in detail later with the instructions for using the "_" document. For example, Access http://localhost:7985/_ViewPage1.cshtml

Ii:razor View Engine-basic syntax

Infrastructure

Any part of the code that begins with @ or @{/* code body */} (at @ and {You must not add any spaces directly) will be processed by the ASP. Each line of code in the @{/* Code body */} must be ";"     End, such as @{var i = 10; var y = 20; And @xxx do not need to ";" As a terminator, such as @i output of ten @y; Output 20; The letters in the code area are case-sensitive. Character type constants must be enclosed in "" For example: @{string str = "my string";} -note-

You can use HTML ASCII encoding & #64 If you want the "@" character in the page output; Of course Razor also provides intelligent analysis capabilities: If the previous word of @ characters is a non-whitespace character, then ASP. NET will not process it such as: <p>[email protected] xx</p> output [email protected] XX
Single-line syntax: @{var I = 10;} Multiline Syntax:

    var I = 10;

    Var y = 20;

}

1. Using local variables, razor does not support the access modifier (public,private, etc., which does not make any sense) to define local variables @{var total = 7 on a single line,} @{var mymessage = "Hello World";} define office on multiple lines Part variable

@{

    var greeting = "Welcome to our site!";

    var weekDay = DateTime.Now.DayOfWeek;

    var greetingmessage = greeting + "Today is:" + weekDay;

}

Using Variables in context

<p</P>   

<p>the value of Mymessage is: @myMessage</P>    

Note : variable splicing output @{var i = ten;} < P>text @i text</p> will output text, text, but what if you want to output text10text?

<p>[email protected]{@i}text</P>    

<p>[email protected] text</P> will output [email protected] text    

<p>[email protected]</P> will output [email protected]    

<p>text @itext</P> will error    

If the output is a variable method name does not need to be surrounded by @{} can also take effect, but note in the @ character before the space (thank Spook pointed) such as: <p>text @i.tostring () text</p> use variable object can be directly written: @ Var1 @var2 @myObject. XX

2. Using logical processing

@{

    if (XX)

    {

    Do something

    }

    Else

    {

    Do anything

    }

}

3. In @{...} Using HTML tags internally

@{

    <p>text</P>    

    <div>div1</div>    

}

4. In @{...} Internal output text using @: For single-line output:

@{

    @:this is some text

    @:this is text too

    @:@i can also output variables

}

Multi-line output with <text/>:

@{

    <text> 

        Tomorrow is good

        Some girl is nice

    </text> 

}

5. In @{...} Internal Use Notes

@{

    Single-line Comment

    var i = 10;

    Defg

}

    @* Multi-line Comment *@

        Multi-line comments

    *@

@{

    @*

        Multi-line comments

    *@

    var i = ten;  @* asdfasf *@

}

<!--can also use the C # default */* ...

@{

    /*

    */

}

If in @{...} Internal use <!----> comments are output to the page, and if the @ variable is used inside <!---->, it will be processed @{<!--time now: @DateTime. now.tostring ()--Output: <!--time now:4/9/2011 12:01-->>

6. Type conversion asint (), Isint () Asbool (), Isbool () asfloat (), Isfloat () Asdecimal (), Isdecimal () asdatetime (), Isdatetime () ToString () Example:

@{

    var i = "10";

}

<p</p    

7. Using loops

<!--Way 1-->

< 11; i++)

{

    @:@i

}

<!--Way 2-->

@{

    < 11; i++)

    {

        Do something

    }

}

<!--while empathy--

ASP. NET MVC3 Series Tutorial-Razor view engine basic syntax