The Model View ViewModel (MVVM) is an architectural pattern used in software engineering that originated from Microsoft as a specialization of the presentation model design pattern introduced by Martin Fowler.

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Entity Framework and “ViewModel”

Earlier I asked a question about "Entity Framework and layer seperation" and found out that some people use a ViewModel to show their data in the UI. For example if we got a "Person" table and an ...
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Should we bind view to a model property or ViewModel should have it's own..?

I am starting a project with following technical environment : .Net 4.0, Entity Framework 4.0, WPF with MVVM Architecture I saw lots of examples on the net, some books with this environment. In some ...
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Who should control navigation in an MVVM application?

Example #1: I have a view displayed in my MVVM application (let's use Silverlight for the purposes of the discussion) and I click on a button that should take me to a new page. Example #2: That same ...
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What are the pros and cons of the MVVM architecture?

In class today we were introduced to the MVVM architecture for Silverlight/WinPhone/WPF; it looks nice for big projects, but what are your thoughts on MVVM? What are the pros and cons? I want to get ...
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Are value converters more trouble than they're worth?

I'm working on a WPF application with views that require numerous value conversions. Initially, my philosophy (inspired in part by this lively debate on XAML Disciples) was that I should make the view ...
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Trying to learn how to use WCF services in a WPF app, using MVVM

We're working on a major re-write of a legacy VB6 app, into a WPF app. I've written several WCF services, which are meant to be used with the new WPF app. We want to use the MVVM design pattern to ...
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When should the presentation model design pattern include one or more controllers?

I have been researching the usage of the Presentation Model design pattern for an application I am preparing to build. The specific technology I will be using is Flex though I doubt that it matters ...
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Examples of MVVM adoption outside the Microsoft community?

IS MVVM getting any kind of traction outside the Microsoft community? Within Silverlight this is a non-issue, but for other technologies, like JavaScript it surely is: For instance Knockout.js is a ...
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Lists & Collections in MVVM - which approach to take?

I'm currently working on a Silverlight app using Caliburn.Micro. At present, we have Views (eg: PeopleView) and View Models (eg: PeopleViewModel) that equate to 'pages' of the application. ...
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MVVM light Communication

I am working on a large MVVM application. I am using the MVVM light toolkit for this. The application is like a web browser with back and forward buttons. The main view is an user control. I laid the ...
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Silverlight 5 and MVVM. Do I really need other frameworks? What is the best way for rapid development?

I've been reading and watching videos on MVVM and Silverlight.. I'm pretty new to Silverlight but not new to .NET. Interesting that I used MVVM in my WPF apps without knowing that it's MVVM. I was ...
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How can I “get in the know”?

My company posted a job listing to get me a helper. A recruiter called me today and all he kept saying was "MVC this Entity Framework that..." - He sounded shocked when I said the project uses ...
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Under what conditions is the use of MVVM appropriate?

Model View View-Model was developed by Microsoft to target UI development platforms which support event-driven programming, specifically Windows Presentation Foundation (WPF) and Silverlight on the ...
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MVVM or MVC? Want to use the same set of classes for WPF and ASP.NET

I am a newbie in terms of Design Patterns. I just started learning MVC when I am hearing a new buzz, MVVM. I want to learn the insights of both of these by redesigning an old inventory and invoicing ...
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Multi sourced search in WPF app

If I’m using the MVVM pattern – this one for my WPF application And my project requires a search function on different sources – say clients, accountants, cases. What would be the best way to go ...
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Has the MVVM pattern been adopted widely in real world Silverlight projects?

MVVM pattern is a hot word recently and I am planning to learning and refactor my existing project into this pattern. I have no experience and foresight of the potential risk. Have you guys really ...
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What are the rules for coupling a ViewModel and a View in the MVVM pattern?

So given the Separation of Concerns, how coupled should the View and ViewModel be? For example, I want the visibility of a Control in the View to be databound (databinded?) to a flag in the ...
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What determines when an application requires mvvm?

I'm developing mobile applications for Windows Phone 7. This application calls some web services and occasionally sends responses out via web services. I recently started looking into MVVM and noticed ...
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What is the most pragmatic & basic UI pattern to follow for Silverlight and/or WPF

Here is the context. The apps will: consume existing (and standard) web services. app is UI intensive (UI updated frequently and lot of data to display). development team experience level is ...
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Is it common/correct using MVVM to expect multiple views and corresponding view-models for a particular model?

Consider a somewhat contrived model that goes something like: class Player { public int Health; public int Ammo; public Weapon CurrentWeapon; public PhysicalState State { ...
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Is ViewModel with more than one repository bad?

I'm working on a project with MVVM. Some ViewModels have more than one repository. Is ViewModels with more than one repository bad? Please provide with why it's good/bad.
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Who is using the MVVM architecture for large applications? [closed]

I am currently working on an LOB application which I am basing on the MVVM architecture. Going by the answers to the questions I'm asking, it seems like there are not that many people building large ...
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Examples of different architecture methodologies

Is there a resource or site which illustrates building the same application (desktop or web) using several different contrasting architectures? Such as MVP versus MVVM versus MVC, etc. It would be ...
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What are the best practices for exception handling in n-tier applications?

What are the best practices for exception handling in n-tier applications? The application is a fat client based on MVVM pattern with .NET framework.