Is the name ViewBag does not exist in the current context?
The name ‘viewbag’ does not exist in the current context. The name ‘HTML’ does not exist in the current context. The type or namespace ‘MVC’ name does not exist in the namespace ‘System.
What type is ViewBag?
In general, ViewBag is a way to pass data from the controller to the view. It is a type object and is a dynamic property under the controller base class. Compared to ViewData, it works similarly but is known to be a bit slower and was introduced in ASP.NET MVC 3.0 (ViewData was introduced in MVC 1.0).
Does ViewBag require type casting?
ViewBag is a dynamic property that takes advantage of the new dynamic features in C# 4.0. ViewData requires typecasting for complex data type and check for null values to avoid error. ViewBag doesn’t require typecasting for complex data type.
What is a ViewBag?
In simple terms “ViewBag is the data holder that enables the definition of a dynamic property and holds the data that can be passed from a controller to a view”.
Which is faster ViewBag or ViewData?
ViewBag, ViewData, and TempData all are objects in ASP.NET MVC and these are used to pass the data in various scenarios….Introductions.
| ViewData | ViewBag | TempData |
|---|---|---|
| ViewData is Faster than ViewBag | ViewBag is slower than ViewData | NA |
Can we set ViewBag in jQuery?
ViewBag is created on Server Side of the Web application and hence it is not possible to directly set it on Client Side using JavaScript or jQuery. Thus, only possible way is to set it by making an AJAX call to the Controller’s Action method using jQuery AJAX function in ASP.Net MVC Razor.
Does ViewBag use session?
In ASP.NET MVC there are three ways – ViewData, ViewBag and TempData to pass data from controller to view and in next request. Like WebForm, you can also use Session to persist data during a user session. Now question is that when to use ViewData, VieBag, TempData and Session. Each of them has its own importance.
Which is better ViewBag or ViewData?
Why ViewData is faster than ViewBag?
Difference between ViewBag & ViewData: ViewData is a dictionary of objects that is derived from ViewDataDictionary class and accessible using strings as keys. ViewBag is a dynamic property that takes advantage of the new dynamic features in C# 4.0.
What is type casting in ViewData?
ViewData is a dictionary object to pass the data from Controller to View where data is passed in the form of key-value pair. And typecasting is required to read the data in View if the data is complex and we need to ensure null check to avoid null exceptions.
Which is best ViewBag or ViewData?
In theory if properly implemented, the ViewBag would ultimately outperform the use of the ViewData dictionary because the binding of the expressions (e.g. ViewBag.
What is the difference between ViewBag and ViewData and TempData in MVC?
To summarize, ViewBag and ViewData are used to pass the data from Controller action to View and TempData is used to pass the data from action to another action or one Controller to another Controller.