view model in asp.net mvc - An Overview

view model in asp.net mvc - An Overview

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Your reasoning is questionable and suspect to favoritism. Granted I know absolutely nothing about MVVM, but if an architecture for instance MVC can mimic the actions with-out being forced to produce 50k lines of code, then whats the big offer?

In this manner, ViewModel aids us to prepare and manage info inside of a strongly typed view in a more flexible way than advanced objects like models or ViewBag/ViewData objects.

Because we also render the Edit view template through the HTTP-POST Edit approach (in eventualities when errors take place), we'll want to ensure that we also update this process to add the SelectList to ViewData in the event the view template is rendered in mistake eventualities:

Using this method you'll be able to centralize the logic for making the JSON if you, for many cause, would like to alter the logic later.

This is frequently an indication that the domain models Really don't cleanly correspond towards the UI you happen to be making, and that an intermediate personalized-formed ViewModel course can help.

The next examples clearly show why the composite mother nature of view models is essential And the way we could finest assemble a View Model that efficient and reusable.

What I don’t know is ways to send the data over as SomeModelView and after that be capable of use that to populate the widget and also change that to JSON.

(That features things like SelectLists. Neither your controller nor view ought to ought to understand how to create a SelectList for the dropdown.)

There also view model in asp.net mvc needs to certainly be a model in MVVM, but the majority of people skip The purpose of that sample fully and they'll have only a view and also a view model. The model in MVC is analogous for the model in MVVM.

That is additional instantly once you use the View generation dialogue and choose the option to create the View strongly-typed:

Employing ViewModels in MVC for finer granularity and superior SoC causes extra easily maintainable and testable code. Try to remember, unit screening is about testing modest units

The HttpPost attribute will be sure that the controller motion only might be achieved through a put up request.

Allow us to say that you've an Employee course that signifies your worker area model and it incorporates the next Homes (special identifier, initial identify, very last title and day made):

The purpose of a ViewModel is to the view to possess a single object to render, alleviating the need for UI logic code during the view that will usually be essential. What this means is the only real