TempData
- TempData is a Dictionary Object
- It can be used assign value and return
public abstract class ControllerBase : Icontroller
{
public TempDataDictionary TempData { get; set; }
}
- View is fully loaded it can be used.
- It’s required typecasting for complex data type and check for null values to avoid error.
- It is used to store only one time messages like error messages and validation messages
- TempData is available MVC2,MVC3,MVC4
Syntax:
TempData["cust"]
= “Saved SuccessFully”;
ViewData
- ViewData is a Dictionary object
- It can be used assign value and return
public abstract class ControllerBase : Icontroller
{
public ViewDataDictionary ViewData { get; set; }
}
o
View Data is used to pass data from controller to
corresponding view.
o
It’s life lies only during the current request.
o
If redirection occurs then it’s value becomes null.
o
It’s required typecasting for complex data type and
check for null values to avoid error.
o
ViewData is available MVC2,MVC3,MVC4
Syntax:
ViewData["cust"]
= cust;
o
ViewBag is a dynamic property
o
It can be used return the value.
public dynamic ViewBag { get; }
o
If redirection occurs then it’s value becomes null
o
Wrapper around the ViewData and also used to pass data
from controller to corresponding view.
o
It doesn’t required typecasting for complex data type
o
ViewBag is available MVC4
Syntax:
ViewBag.Title
= "Test Application";ViewBag.Customer
= “Test Manufacturing”;Custom
using add Title and customer 
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