ASP NET Core Razor Pages in Action

August 9, 2022 0 Comments

The GRID RAZOR PAGES template scaffolds a Razor Pages sample, which contains a Grid with enabled CRUD operations. The benefit of this approach is that the template will add the necessary configuration and dependencies automatically. You can focus on adding and configuring the UI components you need. Running our application, we can see our functionality in action. We can view our HTML, POST the form with our name, and display the Name property, which we stored in TempData. We create a form that posts to our OnPost handler, along with an input for Name. The HTML syntax should look very familiar to seasoned web developers.

  • All these classes are doing is mocking a data access layer so we can demo how to modify it.
  • A more complex binding model could also have been used, where multiple properties were populated.
  • Receive a print copy shipped to your door + the eBook in Kindle, ePub, & PDF formats + liveBook, our enhanced eBook format accessible from any web browser.
  • If you are coming from a Web Forms background, the Razor view engine is quite different than the Web Forms view engine.
  • Most ASP.NET Core developers are familiar with the traditional way to author middleware classes which is based on conventions.

Receive a print copy shipped to your door + the eBook in Kindle, ePub, & PDF formats + liveBook, our enhanced eBook format accessible from any web browser. Our eBooks come in DRM-free Kindle, ePub, and PDF formats + liveBook, our enhanced eBook format accessible from any web browser. The key difference between Razor Pages implementation of the MVC pattern and ASP.NET Core MVC is that Razor Pages uses the Page Controller pattern instead of the Front Controller pattern.

Setting Up the App

Razor is a simple-syntax view engine and was released as part of MVC 3 and the WebMatrix tool set. Razor Pages is the default for building server-side web applications in ASP.NET Core. Components within the underlying MVC framework still have their uses such as using controllers for building RESTful APIs. You can still choose to use ASP.NET Core MVC to build your ASP.NET Core web applications.

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In Razor Pages, model binding is the process that maps data from an HTTP request to simple PageModel properties or handler parameters. Incoming data can be included in a request as posted form values, query string values or route data. The default collection of model binders cover every simple .NET data type.. But sometimes they are not enough, and you need to add your own implementation.

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This course is for anyone who has a basic understanding of ASP.NET Core and wants to learn how to architect and build real-world ASP.NET Core apps (.NET 6). As in Model-View-Controller architecture, the parameter of an action method is bound to the incoming request by matching values in the query string, URL, or body of the request. Razor Pages, on the other hand, bound the incoming request with the properties of PageModel. We have a list of the Best Online Courses to Learn C# to help you get started. ASP.NET Core 2.0 introduced the concept of Razor Pages and it was a useful addition to the existing features of .NET Core. Razor Pages are similar to the web forms model of ASP.NET web forms. Visual Studio will create an Index.cshtml file inside the View/Home folder.

The view model tells the view what to display, but the view can also trigger changes directly on the view model. It’s often used with two-way databinding where a view model is “bound” to a view. The page handler builds a view model by setting properties https://remotemode.net/ on the `PageModel`. It’s important to note that although the page handler selects whether to execute the view, and the data to use, it doesn’t control what HTML is generated. It’s the view itself that decides what the content of the response will be.

MVC Razor Pages #

Now that we’ve got an Index page to list all our employees, let’s build an Add page to add new ones. Now, let’s write markup on the Index.cshtml page to display these employees. For example, say that you have how to become a .net razor developer a bakery website that handles online orders. When users visit the site, they see a page containing a menu and a form to input an order. The way that the menu and form are displayed is defined in the view page.

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Razor Pages definitely seems based on the MVC pattern to me (it’s based on the ASP.NET Core MVC framework after all!) and doesn’t have the same “two-way binding” that I would expect with MVVM. Select an appropriate response to generate based on the response from the application model. Invoke the appropriate actions on the application model using services. An example Razor Page for viewing all to-do items in a given category On this page, you’re displaying a list of items that have a given category label. If you’re looking at the list of items with a category of “Simple,” you’d make a request to the /category/Simple path.

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