Your reasoning is questionable and suspect to favoritism. Granted I understand almost nothing about MVVM, however, if an architecture such as MVC can mimic the behavior with-out having to create 50k lines of code, then whats the big offer?
When editing worker details (an employee which includes previously been included for the databases) it wouldn’t vary Considerably from my case in point previously mentioned. Make a view model, contact it such as EditEmployeeViewModel.
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I discovered this post a really practical resource for knowledge how the "Domain Model" and "View Model" interact within an MVC software, particularly in regards to binding. What's even better incorporates examples rather than summary descriptions.
You ought to often favor using a ViewModel rather then instantiating various models and Placing that manipulation code while in the controller.
They are really perplexed one particular for the other (in mistake). No, you usually won't utilize a pres model instead of a view model. A lot more typical would be that the VM "includes" the presentation model i.e. MyViewModel
As you might have seen, using a ViewModel is simply as easy as utilizing the ViewBag or ViewData objects. ViewModels, nonetheless, present These extra Added benefits like being much view model in asp.net mvc easier to check and enhance.
If you'll use DTO as ViewModel, Meaning you are generating high dependency on DTO on account of some explanation you are modifying DTO then it could effect on ViewModel.
.Many thanks to the rationalization . But , Let's say my area model includes twenty fields and i need two more more fields. Do, i have to place all These fields from the view model which can be already there in Domain model..
by doing this if you set several widgets with a webpage, you will not get conflicts (Unless of course you'll want to access the procedures from elsewhere while in the web page, but in that scenario you should be registering the widget with some widget framework in any case).
This is comparable to only requesting it by using a JSONRequest nevertheless it calls for a person significantly less simply call so it will save you that overhead. BTW This really is funky for Dates but that seems like One more thread.
Along with the ViewModels we may get data from many information models, get Those people entities and shape them as we want. Then the View will need to eat that one item that's our ViewModel.
Are The one supply of facts utilized to render a site or monitor. Ordinarily, this means that a view model will expose each home that any Manage around the web page will require to render by itself accurately.
Some eventualities for instance a lookup table representing states in the United states of america, could conveniently get the job done with both ViewModels or possibly a ViewBag/ViewData object, so There's some potential overlap from time to time. It’s as many as the appliance architects and developers to decide what is effective finest with their actual use case.