書(shū)名： ASP.NET Core 2 Fundamentals
作者名： Onur Gumus Mugilan T. S. Ragupathi
本章字?jǐn)?shù)： 362字
更新時(shí)間： 2021-07-23 17:09:47

Adding Views

So far, we were returning a simple string from the controller. Although that explains the concept of how the Controller and action methods works, it is not of much practical use.

Let's create a new action method named, Index2:

Go to https://goo.gl/UhaHyz to access the code.

public IActionResult Index2()
{
  return View(); // View for this 'Index2' action method
}

Now, we have created the action method that returns a view, but we have still not added the view. By convention, ASP.NET MVC would try to search for our view in the Views\{ControllerName}\{ActionMethod.cshtml} folder. With respect to the preceding example, it will try to search for Views\Home\Index2.cshtml. Please note that the name of the controller folder is Home, not HomeController. The prefix is only needed as per convention. As this folder structure and file are not available, you'll get a 500 Internal Server Error when you try to access this action method through the URL http://localhost:50140/Home/Index2.

So, let us create a folder structure. Right-click on the solution, navigate to Add | New Folder from the context menu, create a folder called Views, and then create a subfolder by the name Home within the Views folder:

Right-click on the Home folder, and navigate to Add | New Item from the context menu. A dialog will appear, as shown in the below screenshot. Give the name of the file as Index2.cshtml, as our action method name is Index2. cshtml is the Razor view engine (this will be discussed in detail in The View Engine and the Razor View Engine section of the next chapter) extension used when you are using C#.

A file by the name Index2.cshtml will be created with the following content when you click on the Add button in the preceding screen:

@* is the comment syntax in the Razor view engine. You can write any C# code within the @{} block.

Let us add a simple HTML block after the generated code:

<html>
<body>
  Hello! This is <b>my first View</b>
</body>
</html>

Now, when you run the application, you will get the following output:

The following diagram explains the request flow and how we generate the response through the View:

官术网_书友最值得收藏!

ASP.NET Core 2 Fundamentals

Adding Views