Within the conditions, we can create a variable that will be used when rendering its value on the browser. When creating a template with ASP.NET, a ViewStart.cshtml file is automatically generated under the /Pages folder. The @section directive is used in conjunction with the layout page to enable views to render content in different parts of the rendered HTML page. Just like the _ViewStart.cshtml file, _ViewImports.cshtml is invoked for all your view pages before they are rendered. The _ViewImports.cshtml file is automatically generated under /Pages when we create a template with ASP.NET. In Razor Pages, a for loop is prepended by the @ symbol followed by a set of conditions wrapped in parentheses.
- Seen from the browser, the HTML generated by server code is
no different than static HTML content. - Razor keywords can be escaped with @(Razor Keyword), for example @(functions).
- Redirecting is an essential part of web development, as it avoids the additional POST requests when we refresh a URL in our browser session.
- Once you add the above code within the _Layout.cshtml file, your code should look as shown below.
Viewing the Razor C# class generated for a view explains how to view this generated class. You generally use this approach when you want to render HTML that is not surrounded by an HTML tag. Any content within the @() parenthesis is evaluated and rendered to the output. An important feature of dynamic web pages is that you can determine what to
do based on conditions. They exclude namespaces, as those may differ depending on the project name. In this video, we’ll create a complete request/response experience using a single Razor Pages endpoint.
TagHelpers¶
Razor is based
on ASP.NET, and designed
for creating web applications. It has the power of traditional ASP.NET markup,
but it is easier to use, and easier to learn. Right-click on your project root directory and then add a new class file with the name Employees.cs and then copy and paste the following code into it.
In Razor Pages, Tag Helpers change and enhance existing HTML elements by adding specific attributes to them. The elements they target are based on the element name, the attribute name, or the parent tag. ViewData is a dictionary that can contain key-value pairs where each key must be a string. The values can be accessed in the view page using the @ symbol. There can be empty space before the @page directive, but there cannot be any other characters, even an empty code block.
Razor View Imports
Razor syntax is based on the ASP.NET framework, the part of the Microsoft.NET Framework that’s specifically designed for creating web
applications. 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. The Obj folder is used to store temporary object files and other files that are used to create the final binary during the compilation process. Amend the project name options and the location where the project files will be created to suit your needs.
We can start with the ASP.NET Razor Pages template installed with .NET. In this section, you will be shown how to use the .NET Core command line tools to create a simple Razor Pages application and how to build and run it in the browser. You will also explore the various parts of the application and understand the role that each part plays. ASP.NET helpers are components that can be accessed by single lines of
Razor code. Then create a Bindable property called Id which also should support Get within the same EmployeeModel class as shown in the below image. Alex Wolf works as a .NET and Azure Content Developer at Microsoft, and is passionate about learning and teaching software development.
@model¶
Create a constructor which takes a parameter “List” within the “EmployeeModel” class. Create some data for the collection as shown in the below image. Once you click on the Add button, it will create Employee.cshtml page razor engine .net core within the Pages folder as shown in the below image. The Get () verb takes an Id parameter and returns the First Name of the employee. To keep things simple, we are using the in-memory collection as the data source.
- Create some data for the collection as shown in the below image.
- The elements they target are based on the element name, the attribute name, or the parent tag.
- An important feature of dynamic web pages is that you can determine what to
do based on conditions. - A database record
might have a FirstName and a LastName property (among others). - Razor pages expose a Model property for accessing the model passed to the page.
