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Alex
Alex

Reputation: 4948

Understanding Models and ViewModels in MVVM

I had been developping using WinForms for about a year now and I recently started discovering WPF. I have been more and more interested in this concept and started looking into the WPF's Framework MVVM.

MVVM

  1. We can say that Windows, Pages, UserControls in WPF are Views
  2. But what is the difference between Models and ViewModels?

I've looked at a lot of documentation on MSDN and some videos on YouTube trying to explain this.

If I understand correctly, the Models are basically the structure of your object (for example, Customers) and the ViewModels is what can work WITH the Customers object. Therefore I would bind my Window's DataContext to my ViewModel?

Upvotes: 1

Views: 95

Answers (1)

Lynn Crumbling
Lynn Crumbling

Reputation: 13377

Did you read the MVVM article from MSDN mag? I'm guessing yes, since you're mentioning customers... msdn.microsoft.com/en-us/magazine/dd419663.aspx

If you've been coding OOP in winforms, then you've got classes to represent your data. That's nearly a 1:1 for what a model is. As a super-simplified way of looking at a viewmodel, think of it as the code that previously went into your code-behind for the controls of the page. It tells the view how to draw itself.. buttons to show/enable and the like.

So, in summary,

model::data as viewmodel::form_controls

Upvotes: 2

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