Action Result Return Types In ASP.Net MVC

In this article we will learn about the ActionResult  of MVC, So instead of going deep lets  start with overview .
What is ActionResult ?
ActionResult is the abstract class which is used to show the output to the client in different format as per result view  returned by the controller.
The ActionResult are defined into the controller and controller returns to the client (Browser).
The following are the sub type or types of Action Results which are present in MVC which are used as per output requirement of client.
  1. ViewResult 
  2. PartialViewResult  
  3. EmptyResult 
  4. RedirectResult 
  5.  RedirectToRouteResult 
  6. JsonResult  
  7. JavaScriptResult
  8. ContentResult 
  9. FileContentResult
  10. FileStreamResult
  11.  FilePathResult 
    Let us learn in brief about each ActionResult are as

    ViewResult
     It returns the a specified view to the response stream such as html.
    Syntax
    public class EmpController : Controller
    {
        
        public ActionResult Index()
        {
            return View();
        }
    }
    
    PartialViewResult 
     It returns the partial view to the response stream,mostly the partial view call from main view.Its same like as user control in Asp.net.
    Syntax
    public class EmpController : Controller
    {
        
        public ActionResult Index()
        {
            return PartialView("_Empdetails");
        }
    }
    EmptyResult  
    This action returns the empty response to the client.
    Syntax 
    public class EmpController : Controller
    {
        
        public ActionResult Index()
        {
          return new EmptyResult();
        }
    }
    
    • RedirectResult -It redirects to the specified url same as Response.Redirect in Asp.net.
     Syntax
    public class EmpController : Controller
    {
        
        public ActionResult Index()
        {
         return Redirect("http://www.compilemode.com");
        }
    }
    
    • RedirectToRouteResult - Performs an HTTP redirection to a URL that is determined by the routing engine, based on given route data.
    Syntax
    public class EmpController : Controller
    {
        public ActionResult Index()
        {
        filterContext.Result = new RedirectToRouteResult(new RouteValueDictionary(new { 
        action = "View", 
        controller = "EmpController",}));
        }
    }
    
    JsonResult
    This action Serializes a given View Data object into JSON (JavaScript object notation) format.
    Syntax 
    public class EmpController : Controller
    {
        public JsonResult EmpDet()  
            {  
         
                return Json("HI", JsonRequestBehavior.AllowGet);  
            }   
       
    }
    
    JavaScriptResult 
    This action returns a piece of JavaScript code that can be executed on the client side.
    Syntax
    public class EmpController : Controller
    {
    public virtual JavaScriptResult EmpDet()
    {
        var script = string.Format(@"
        MaxNotificaitonsToShow = {0};
        ItemsPerPage = 5;",
        GlobalSettings.MaxNotificaitonsToShow);
        return JavaScript(script);
    }
    }
    
    ContentResult 
    It writes content to the response stream without requiring a view.
    Syntax 
    public class EmpController : Controller
    {
    public ContentResult PersonInfo()
    {
        return Content("Hi Vithal Wadje");
    }
    }
    
    FileContentResult 
    It returns a file to the client.
    Syntax 
    public class EmpController : Controller
    {
    public FileResult DailyReport()
    {
        string fileName = @"c:\Vithal Wadje\DailyReport.pdf";
        string contentType = "application/pdf";
     
        return new FilePathResult(fileName, contentType);
    }
    }
    
    FileStreamResult  
    This action returns a file to the client, which is provided by a Stream.
    Syntax
    public class EmpController : Controller
    {  
    public ActionResult DownloadFile()
    {
        string Fileinfo =@"c:\Vithal Wadje\DailyReport.txt";
        byte[] data = Encoding.UTF8.GetBytes(Fileinfo );
        return File(data, "text/plain","DailyReport.txt");
    }
    }
    
    FilePathResult  
    This action returns a file to the client. 
    Syntax 
    public class EmpController : Controller
    {
    public FilePathResult DownloadFile(string file, Guid GuID)
    { 
        return File(FileStream, "application/octet-stream", fileName);
    }
    } 
    
    
    
    
    Note
     This article is only briefs about the Action Results so beginners can understand,for more details please read my future article.
    Summary
    My next articles we will learn in depth about each ActionResult. I hope this article is useful for all readers, if you have any suggestion then please contact me including beginners also.

    Post a Comment

    www.CodeNirvana.in

    Protected by Copyscape Online Copyright Protection
    Copyright © Compile Mode