Part 78 Different types of ActionResult in asp net mvc скачать в хорошем качестве

Part 78 Different types of ActionResult in asp net mvc

Link for code samples used in the demo http://csharp-video-tutorials.blogspo... Healthy diet is very important both for the body and mind. If you like Aarvi Kitchen recipes, please support by sharing, subscribing and liking our YouTube channel. Hope you can help.    / @aarvikitchen5572   Link for csharp, asp.net, ado.net, dotnet basics, mvc and sql server video tutorial playlists    / kudvenkat   In this video, we will discuss different types of ActionResult objects that can be returned by an action method. The following is the signature of a typical action method in a controller. Notice that, the return type is ActionResult. ActionResult is an abstract class and has several sub types. public ActionResult Index() { return View(); } I have used a tool called ILSpy, to list all the sub-types of ActionResult. To use the tool yourself, here are the steps 1. Navigate to http://ilspy.net/. 2. Click on "Download Binaries" button, and extract them to a folder. 3. Run ILSpy.exe which can be found in the folder, where you have extracted the binaries. 4. Click on File - Open From GAC 5. Type "System.Web.Mvc" in the search box. Select the Assembly and click Open 6. At this point System.Web.Mvc assmbly should be loaded into ILSpy. Expand System.Web.Mvc, then expand ActionResult and then expand "Derived Types". You should now be able to see all the derived types. Why do we have so many sub-types? An action method in a controller, can return a wide range of objects. For example, an action method can return 1. ViewResult 2. PartialViewResult 3. JsonResult 4. RedirectResult etc.. What should be the return type of an action method - ActionResult or specific derived type? It's a good practise to return specific sub-types, but, if different paths of the action method returns different subtypes, then I would return an ActionResult object. An example is shown below. public ActionResult Index() { if (Your_Condition) return View(); // returns ViewResult object else return Json("Data"); // returns JsonResult object }