ASP.NET Razor: Difference between revisions

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| repo = {{URL|https://github.com/aspnet/Razor}}<br />{{URL|https://github.com/aspnet/AspNetWebStack}}<br />{{URL|https://github.com/dotnet/aspnetcore}}

| programming language = [[C Sharp (programming language)|C#]], [[Visual Basic .NET|VB.NET]], [[HTML]]

| operating system = [[Microsoft Windows]]<ref>{{cite web |title=Introduction to Razor Pages in ASP.NET Core |url=https://learn.microsoft.com/en-us/aspnet/core/razor-pages/?view=aspnetcore-6.0&tabs=visual-studio |website=learn.microsoft.com | date=27 September 2024 |language=en-us}}</ref>

| genre = [[Web application framework]]

| license = [[Apache License 2.0]]<ref>{{cite web |url=https://github.com/aspnet/Razor/blob/master/LICENSE.txt |title=Razor/LICENSE.txt at master · aspnet/Razor · GitHub |work=GitHub|date=12 October 2022 }}</ref>

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'''Razor''' is an [[ASP.NET]] programming syntax used to create [[dynamic web page]]s with the [[C Sharp (programming language)|C#]] or [[Visual Basic .NET|VB.NET]] programming languages. Razor was in development in June 2010<ref name="IntroducingRazor">{{cite web|url=http://weblogs.asp.net/scottgu/archive/2010/07/02/introducing-razor.aspx|title=ScottGu's Blog - Introducing "Razor" – a new view engine for ASP.NET|work=asp.net|date=3 July 2010 }}</ref> and was released for Microsoft [[Visual Studio]] 2010 in January 2011.<ref name="RazorsyntaxSupport">{{cite web|url=http://blogs.msdn.com/b/webdevtools/archive/2011/01/12/how-to-get-razor-syntax-support-in-visual-studio-2010.aspx|title=MSDN Blogs|publisher=Microsoft|work=msdn.com|access-date=2011-07-08|archive-url=https://web.archive.org/web/20120702131534/http://blogs.msdn.com/b/webdevtools/archive/2011/01/12/how-to-get-razor-syntax-support-in-visual-studio-2010.aspx|archive-date=2012-07-02|url-status=dead}}</ref> Razor is a simple-syntax view engine and was released as part of [[ASP.NET MVC|MVC]] 3 and the [[WebMatrix]] tool set.<ref name="RazorsyntaxSupport" />

Razor became a component of AspNetWebStack and then became a part of [[ASP.NET Core]].<ref>{{cite book |last1=Chadwick |first1=Jess |title=Programming Razor: Tools for Templates in ASP.NET MVC or WebMatrix |date=9 September 2011 |publisher="O'Reilly Media, Inc." |isbn=978-1-4493-1716-4 |url=https://wwwbooks.google.co.incom/books/edition/Programming_Razor/z3QlDSjr0jYC?hlid=enz3QlDSjr0jYC&gbpv=1&dqq=ASP.NET+Razor&printsec=frontcover |language=en}}</ref>

== Design==

The Razor syntax is a template markup syntax, based on the C# programming language, that enables the programmer to use an HTML construction workflow.{{clarify|date=June 2013}} Instead of using the ASP.NET Web Forms (.aspx) markup syntax with <code><%= %></code> symbols to indicate code blocks, Razor syntax starts code blocks with an <code>@</code> character and does not require explicit closing of the code-block.

The idea behind Razor is to provide an optimized syntax for HTML generation using a code-focused templating approach, with minimal transition between HTML and code.<ref name=MVC3rve>{{cite web|url=http://www.asp.net/mvc/videos/mvc-3/mvc-3-razor-view-engine|title=MVC 3 - Razor View Engine|author=Jon Galloway|work=The Official Microsoft ASP.NET Site|date=19 February 2020 }}</ref> The design reduces the number of characters and keystrokes, and enables a more fluid coding workflow by not requiring explicitly denoted server blocks within the HTML code.<ref name="IntroducingRazor" /> Other advantages that have been noted:<ref name=pro1>{{cite web|url=https://stackoverflow.com/questions/1451319/asp-net-mvc-view-engine-comparison|title=ASP.NET MVC View Engine Comparison|work=stackoverflow.com}}</ref>

* Supports [[IntelliSense]] – statement completion support

* Supports "layouts" – an alternative to the "master page" concept in classic [[ASP.NET_Web_FormsNET Web Forms|Web Forms]] (.aspx)

* [[Unit testing|Unit testable]]

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[[Category:ASP.NET|Razor]]

[[Category:2010 software]]

[[Category:Free and open-source software]]

[[Category:Free software programmed in C Sharp]]

[[Category:Microsoft application programming interfaces]]

[[Category:Microsoft free software]]

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[[Category:Template engines]]

[[Category:Web frameworks]]

[[Category:2010Windows-only free software]]