mvc-how to Pass values from controller to controller?

Question

How to select particular value from table and store it in viewbag.And also how to use that stored values in different controller in mvc5?

Ranjit Powar · Answer

To pass values from one action method to another use Tempdata. Other way is store information in session.

Rahmat Afridi · Answer

In this technique you store the data to be passed in the TempData dictionary in the sender action method. The receiving action method reads the data from the TempData dictionary. You might be aware that TempData dictionary can hold data till it is read and this can carry data across multiple requests. The following code shows how this is done: public ActionResult Index() { Customer data = new Customer() { CustomerID = 1,CustomerName = "Abcd" ,Country = "USA" }; TempData[ "mydata" ] = data; return RedirectToAction( "Index" , "Home2" ); } As you can see Index() action instantiates a Customer object as before. This time, however, it stores the Customer object in a TempData key named mydata. The RedirectToAction() method is then used to take the control to the Index() action of Home2 controller. Inside the Index() of Home2, you can read the value as follows: public ActionResult Index() { Customer data = TempData[ "mydata" ] as Customer; return View(data); }

Akshaya arumugam · Answer

Thank you Chetan Ranpariya

Chetan Ranpariya · Answer

TempData is used when you are redirecting from one controller action to another controller action. In your code there is no redirection happening. Both the Controller actions are returning views. If I am correct, you want to store the PatientCode selected in Controller1 somewhere so that you can use that is Controller2. To be able to do this I think you should use Session variable. You can store "PatiendCode" in Session from Controller1 and retreive it in Controller 2. //Write following in Controller1 Session[ "CurrentPatient" ] = PatientCode; //Write following in Controller2 string patCode = Session[ "CurrentPatient" ].ToString();

Akshaya arumugam · Answer

This is my code.But it takes null value to the second contoller Controller1: public ActionResult ExaminePatient(string PatientCode) { List itemList = new List (); ExaminePatient examine = new ExaminePatient(); ExamineVm vm = new ExamineVm(); ExamineLoadingValues drop = new ExamineLoadingValues(); vm.Status = drop.Statusload(); itemList = drop.Visitinfo(PatientCode); ViewData["itemList"] = itemList; if(PatientCode!=null) { patcode = PatientCode.ToString(); ViewBag.patcode = patcode; TempData["patcode"] = patcode; } return View("ExaminePatient", vm); } Controller2: public ActionResult TestSelection() { List itemList = new List (); TestOrderDbs test = new TestOrderDbs(); TestOrderViewmodel vm = new TestOrderViewmodel(); itemList = test.Testordervalues(); ViewData["itemList"] = itemList; TempData["patcode"] = patcode; return View("TestSelection", vm); }

Ibrahim Siddique · Answer

Hi Akshaya, Hope you are doing well If your passing Value from one controller to another controller directly the you can use TempData it will be an best soution for you.

Akshaya arumugam · Answer

how to use it.Can you show me an example?

Chetan Ranpariya · Answer

What code you have tried for this so far? Can you give some example about what exactly do you want?