After calling the action method in browser, the file will ask for download as shown in. Part 78 different types of actionresult in asp net mvc. Here, in this article we will learn about differences between them. Gets the name of the master view such as a master page or template to use when the view is rendered. Net framework 4 introduced an asynchronous programming concept referred to as a task and asp. Net cloudfront cryptography ctp dns download dropzonejs entity framework facebook featured framework iis iis 8 iisnode interview question javascript jquery jquery mobile json knockout. It is used to return the models to the views, file streams and also redirect to the controllers. Since mvc follows conventionoverconfiguration, mvc will look for a. What is difference between actionresult and iactionresult. Action methods help us to return models to views, file streams, and also redirect to another controllers action method. However, there are different action result types, depending on the task that the action method is performing. Nov 17, 2016 how to connect two routers on one home network using a lan cable stock router netgeartplink duration.
Actionresult is a general result type that can have several subtypes from asp. Net mvc and have just started to read some of the online guides. There are different types of action results in asp. The actioninvoker decide which type of action result to return based on the task that the action method is performing. Actionresult is a base class for viewresult in mvc framework, it uses actionresult class to reference the object our action method returns. Whats the difference between actionresult and viewresult for. View result class is inherited from action result class by view result. Net mvc controller, action method and actionresult in this article i am going to explain about asp.
The diagram shown below describes about abstract class of action result. The above code means that you are returning a viewresult object and due to polymorphism, this object is automatically type casted to the parent class type, i. The only difference is that with the actionresult one, your controller isnt promising to return a view you could change the method body to conditionally return. Actionresult is an abstract class while viewresult derives from actionresult class.
Viewresult renders a specifed view to the response stream actionresult is an abstract class that can have several subtypes. And the problem is that we cant see inside this assembly with go to definition feature of visual studio. This tutorial will teach you the basics of building an asynchronous asp. Mvc assembly, then you can download after clicking here. See the different actionresults and learn about when to use each of. May 31, 2016 the diagram shown below describes about abstract class of action result.
Free source code and tutorials for software developers and architects updated. Net mvc return viewresult as html file stack overflow. This is used to populate data with out refreshing the page. Nov 19, 2012 a simple pdf actionresult in mvc posted on november 19, 2012 by cprakash recently, i needed an actionresult implementation to return the pdf documents from my controller action to mvc views and it tooks few minutes to build the functionality on the existing fileresult. Bruce provides an example to elaborate a bit more on this as understanding the use of interfaces and other.
Difference between viewresult and actionresult interview question. And to some extent, if you had a test that called it, if someone removed that view from the controller, the test would no longer compile. In the company im currently working for, it is a common practice to use devexpress xtrareports to create all kind of reports. Controller class is responsible for handling incoming request, process. Click ok when the create unit test project dialog box is displayed, make sure yes, create a. To download the most uptodate version of the framework, see the asp. Actionresult has several derived classes like viewresult,jsonresult, filestreamresult and so on. So, we have now option to create custom action result with async support. You can generally recognize these types of things as interfaces usually have the notation iyourclasshere such as ienumerable, idisposible, etc.
Each action method has a return type and we call it as action result. The purpose of this concept is to return a generic actionresult object for each controller method, allowing different child classes returning different results. Difference between viewresult and actionresult in asp net mvc. In order to create my own actionresult, i created a pdfactionresult class which inherits from an abstract actionresult class. Any action in an mvc controller, generally speaking, returns an actionresult.
The actionresult method works as a return type of any controller method in the mvc. Jun 20, 2018 action result is actually a data type. Mvc, then expand actionresult and then expand derived types. Net mvc controller, its action method and action result. The solution presented above works fine, however, i wanted to create something more reusable, that is why i decided to create a custom actionresult pdfactionresult. Recently, i needed an actionresult implementation to return the pdf documents from my controller action to mvc views and it tooks few minutes to build the functionality on the existing fileresult. Difference between actionresult and viewresult slideshare. How to connect two routers on one home network using a lan cable stock router netgeartplink duration.
An introduction to actionresults in mvc dot net concept. Dec 15, 2016 difference between viewresult and actionresult in asp net mvc may be you like this our channel. Feb 24, 2015 any action in an mvc controller, generally speaking, returns an actionresult. To learn more about actionresult and some of the other following action result types, please go through the following articles in my blog.
This database file is part of the sample project that you can download for this project. Enables processing of the result of an action method by a custom type that inherits from the actionresult class. What is the difference between viewresult and actionresult in. And have next question how can i do to make my action to returns generated html as file for download. Net mvc controller, action method and actionresult. And viewresult is an implementation for this abstract class.
Obviously that class represents an action of some kind, but exactly what does it do. Actionresult is a return type of a controller method in asp. Net mvc actionresult and viewresult both are mainly a return type for controller action method. An example actionresult builtin is the renderviewresult. As we see in the visual studio, the actionresult type is coming from system. Difference between viewresult and actionresult stick2basic. Difference between viewresult and actionresult in asp net mvc may be you like this our channel.
Viewresult renders a specifed view to the response stream. The actionresult class is the base class for all action results. I decided to build a base class pdfresult to abstract the contenttype implementation as well as it will also serve as a common return. The action method returns a type of actionresult in response to the browser request. Hi, im new to mvc nooob, and following ms tutorial, and its just introduced async task actionresult and shows the benefits. You should now be able to see all the derived types. Unit testing a very simple viewresult in mvc karlz. Lets peel back the covers on actionresult and discover why it and its derived classes are critical to understanding asp.
This article will explain to you different types of actionresult in mvc with example. So when you see mvc controller and action codes as shown below. It help us to return models to views, other return value, and also redirect to another controllers action method. How do i redirect within a viewresult or actionresult function. Net core has been improved because it can be now asynchronous. Net mvc interview question which making circles around. There are plenty of action results are available according to need but all action results are inherited by actionresult class. It is possible be explicit about what type to return, but generally it not necessary. Viewresult view this return type is used to return a webpage from an action method. To see inside the assembly, you can either follow the following steps after downloading ilspy or you can watch this video by clicking here. Does it mean that you should use async task all the time rather than the normal actionresult, which is how it started the tutorial. As you know, an action is referred to as a method of the controller, the action result is the result of action when it executes.
It is the responsibility of the controller that it connects the component. Viewresult and actionresult in mvcactionresult is an abstract or base class. It helps to send the content in javascript object notation json format. Recently lots of interview questions are asked around asp. There are many derived actionresult types in mvc that we use to return the result of a controller method to the view. And how to create and use controller in mvc application. Part 78 different types of actionresult in asp net mvc youtube. Viewresult is a datatype which is responsible for returning the view. Jsonresult is returned by asynchronous posting inside the application by jquery. Definition action result is a result of action methods or return types of action methods. What is the difference between viewresult and actionresult.
First to understandactionresult and viewresult are basically a return type for an methodi. Net mvc web application using visual studio express 2012 for web, which is a free version of microsoft visual studio. Initializes a new instance of the actionresult class. One is actionresult and another one is executeresult. In this article we will learn what are the available action results and which one we need to use in which case. Each result has a different type of result format to view page. The controller class is inherited from controllerbase. Actionresult is a general result type that can have several subtypes. Mvc difference between viewresult and actionresult. Nov 01, 2014 so when you see mvc controller and action codes as shown below. You can also use visual studio 2012 a complete sample is provided for this tutorial on. In case you are a newbie to polymorphism, lets do a quick revision. Difference between viewresult and actionresult 300. Difference between viewresult and actionresult in mvc.
Actionresult subtypes viewresult renders a specifed view to the response stream partialviewresult renders a specifed partial view to the response stream emptyresult an empty response. In mvc framework, it uses actionresult class to reference the object your action method returns. Hi, im new to mvc nooob, and following ms tutorial, and its just introduced async task and shows the benefits. Whats the difference between actionresult and viewresult. As the others have mentioned, iactionresult is simply the interface and an actionresult is a generic implementation of that same interface. List of subclasses derived from actionresult abstract class. Net web forms 39 mvc 39 39 view engine vs aspx view engine 40 16. Net mvc, incoming browser requests gets mapped to a controller action method. So really these two code snippets do the exact same thing.
Actionresult is an abstract class, and its base class for viewresult class. For example, the most common action is to call the view method. Usually these reports are embedded into html page and. Initializes a new instance of the viewresult class. Net mvc web application template name the solution mvccontacts. May 20 2 april 20 22 march 20 14 february 20 7 january 20 7 december 2012 8 categories. In mvc all actions are performed through controller. The view method returns an instance of the viewresult class, which is derived from actionresult. Actionresult is an abstract class that can have several subtypes. The actionresult class is the base for all action results. There are many derived actionresult types in mvc that you may use to return the results of a controller method.
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