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home / developersection / forums / what is the use of viewdata in asp.net mvc?
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What is the use of ViewData in Asp.Net MVC?

Shikhar Arora 1932 18 Dec 2019

How to send data from Controller to View

asp.net mvc .netmvc
Updated 18 Dec 2019
Shikhar Arora
Shikhar Arora

Trainee

I'm a programmer and I like creativity.

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1 Answers

Shikhar Arora
Shikhar Arora 18 Dec 2019
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ViewData is used to pass data from controller to view and it consist of a null value when redirection occurs. ViewData is derived from ViewDataDictionary which is dictionary type and ViewData required typecasting. Following is the code scrap of ViewData in MVC

// Summary:

// Gets or sets the dictionary for view data.

//

// Returns:

// The dictionary for the view data.

public ViewDataDictionary ViewData { get; set; }

ViewData is a dictionary object that is derived from the ViewDataDictionary class. We will see how we can assign value to ViewData in Controller with a simple example for that create one new controller in the application and write code like as shown below

 using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.Mvc;
namespace Tutorial4.Controllers

{

    public class TestController : Controller

    {

        public ActionResult Index()
        {

            ViewData["test"] = "hi Viewdata";

            return View();

        }

    }

}

Now we will create one view to show data for that right click on controller à select add view give the name for that view (Index.cshtml). Open view file and write the following code to show data in the website

@{

ViewBag.Title = "Index";

}

<h2>Index</h2>

@ViewData["test"]
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