Pass data between controllers asp.net mvc 3 - asp.net-mvc

Question

I need to know how to pass data between two controllers in asp.net mvc 3
i have two controllers
public class controller1:Controller
{
}
public class controller2:Controller
{
}
how to pass data from controller1 to controller2?

Answer 1

One way is to pass using TempData:
public class controller1Controller:Controller
{
public ActionResult Index()
{
TempData["SomeKey"] = "Some Value";
return RedirectToAction("Index","controller2");
}
}
public class controller2Controller:Controller
{
public ActionResult Index()
{
string value = TempData["SomeKey"] as String;
return View();
}
}
One thing to remember is TempData is single read, which means that once a value is read from TempData it will automatically be deleted, if the value is till needed after read and you want to persist it, you have to call TempData.Keep() and you can be more specific to persist specific key value by calling:
string value = TempData["SomeKey"] as String;
TempData.Keep("SomeKey");
Another way is to use RouteValue Dictionary:
public class controller1Controller:Controller
{
public ActionResult Index()
{
return RedirectToAction("Index","controller2",new { SomeKey = "SomeValue"});
}
}
public class controller2Controller:Controller
{
public ActionResult Index(string SomeKey)
{
return View();
}
}
I am using String in example, you can have a custom type like a model or view model object that is to be passed.
I would suggest you to read this MSDN article for more details and understanding of passing data in mvc application.
You should also read What is ViewData, ViewBag and TempData? – MVC options for passing data between current and subsequent request and When to use ViewBag, ViewData, or TempData in ASP.NET MVC 3 applications

Answer 2

You can use RouteValue Dictionary here as :-
public class controller1Controller:Controller
{
public ActionResult Index()
{
return RedirectToAction("Index","controller2",new { UserName= "Username"}); <----Just pass username value here
}
}
public class controller2Controller:Controller
{
public ActionResult Index(string UserName) <-----get username value here
{
return View();
}
}