The Model-View-ViewModel design pattern, which separates presentation from data and logic.

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Randomly choose a game executable from a folder 2.0

After asking Randomly choose a game executable from a folder, I applied the recommended changes. I also redesigned the program to make use of the MVVM (Model-View-Viewmodel) paradigm, using Prism 6.0. ...
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51 views

Unit of Work and repositories in MVVM / Windows 10 app

I’m currently aiming to make my first app for the Universal Windows Platform (UWP) / windows 10. It’s a small app but should follow some best practices patterns (although I’m considering it as a first ...
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122 views

Navigation between pages in WPF MVVM application

EDIT: Here is the code repo: https://github.com/AntwanReno/navi I did a project in WPF MVVM. Just a single Window with single ...
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50 views

DialogService which can return a result and closes Window

I wanted to have a DialogService that can return an arbitrary result. The views to be displayed are implemented as UserControls, and UserControls cannot close themselves (nor directly the parent ...
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93 views

Code Explorer 2.0: A folder hierarchy to organize VBA projects

Next release of Rubberduck will introduce a very cool @Folder annotation system that the Code Explorer will use to organize modules into - you guessed it - folders: ...
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2answers
260 views

Monitoring the clipboard

The following class monitors the clipboard and raises an event whenever the contents change. The monitoring starts when the class is created and ends when Dispose ...
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66 views

MVVM light message handling

Recently I started to use mvvm light messenger and it lead to creating this ugliness which I have to refactor now. What would be the best future proof way to refactor this whole class? ...
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1answer
46 views

Closing Tab Item Confirmation

For this project I'm targeting .NET 4.6 with Prism 6 as a toolkit to implement correct MVVM patterns. The code below allows me to raise a dialog box with Yes, No, Cancel buttons. If the user clicks ...
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19 views

Data binding with keydown

I want to create a JS MVVM framework for learning and personal project. jsFiddle HTML: ...
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3answers
326 views

Fetching, adding, and viewing games

This is a simple application that will eventually manage certain files for video games. For now, I'm only posting code that handles fetching, adding, and viewing games. I'm trying to keep things ...
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Unit of work with Repository pattern

I am trying to work on a WPF application and decided to go for Unit of Work and Repository pattern, along with MVVM. I am using Entity Framework as my ORM. Could ...
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129 views

TestExplorer 2.0 - From Grid to TreeView

Rubberduck's unit testing feature (heck, the whole project) started with a VBA unit testing framework that was ported from vba to c#; the VBA logic was pretty much simply rewritten in another ...
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210 views

WPF MVVM Navigation

Following a lot of research and mainly based on this tutorial I came up with the following structure in my application: ObjectBase - all view models inherit it: ...
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Single page web mini app clients

Task: a one-application separation of logic. I'm just learning to write patterns MV*. Have I used shared model of view? View: ...
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662 views

WPF MVVM Dialog with Prism, MahApps.Metro

I am building a Metro-themed WPF application with MVVM approach using Prism and MahApps.Metro. I have to show a custom dialog from view model. Currently, I am using ...
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196 views

Xamarin Forms MVVM Light Toolkit usage

I am playing around with Xamarin, because there is a good chance that I might have to start a project using it in a few months. What I am mostly looking at is Xamarin Forms as I am familiar with WPF ...
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1answer
52 views

Organizing museum artwork

I have a small Django project to help organize museum artwork. In my models.py file, my museum object is defined as follows: ...
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1answer
149 views

WPF application depending on large file

I've got a quite simple WPF application, trying to implement a correct MVVM pattern. The application in itself is simple: one listItem and one textbox + button for searching. On init, the entire ...
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2answers
699 views

MVVM data binding for a video encoding form

I am creating a C# WPF application. I am intending to bind all of the GUI controls via data binding to my ViewModel, rather than code behind - as per MVVM. I have ...
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234 views

Passing a password to a viewmodel

I've got a project I've been working on that connect to a file server and writes some data to a text file. In order to do this I added a textbox for the user to type their username and a passwordbox ...
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97 views

MVVM Model modifying data

I’m trying to rewrite one of my projects using the MVVM pattern. I have a feeling though I’ve not done it correctly because I think my Model is too “smart”, it has methods to modify its own ...
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714 views

Controlling a Windows Service from a WPF app

I have a WPF Control Panel app, where I'm trying to stay close to an MVVM architecture. The control panel (the "the CP") is for a WCF service ("the Scheduler"), hosted in a Windows Service ("the ...
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1answer
698 views

Asynchronous method and collection binding

I have a WPF application, in which I'd like to bind a collection to a combobox using an asynchronous method : ...
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2answers
76 views

The cycle continues - VM's part 4

So, this is my refactored VM: ...
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1answer
247 views

Using list of tasks to obtain and cache data

I develop Windows Phone App with Prism framework (MVVM). I use data caching. To get data I use proxy service. Proxy service creates two ...
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1answer
1k views

From event handler to command: on my way to MVVM

I have a WPF C# application that I want to move to a MVVM pattern. My first step is to remove the button click handlers from the code behind of the UI. I've found some examples online and then ...
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134 views

MVVM, Navigation, and More - Part 3

This is actually a second follow-up to Correct MVVM format, but I have made different changes. This is my ViewModel.cs class for my MainPage.xaml: ...
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Reacting to Boolean state in reactive ViewModels

When this ViewModel loads we kick off the IsAuthenticatedCommand: If the result of ...
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2k views

A ViewModel using ReactiveUI 6 that loads and sends data

Most of the Rx Compelling Examples™ load and store data locally, which I don't find that Compelling. I spent some time coming up with how to best perform the following actions but want to make sure I ...
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1answer
69 views

View model usage

I'm about to start work on a large project using MVVM design pattern. I've worked on smaller projects in the past using MVVM, but I want to make sure my approach to MVVM is good/manageable as possible ...
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124 views

Correct usage of MVVM and object for method

I'm writing my first C# Windows Store app and am learning C# from scratch. I'm trying to implement MVVM as I understand it and object orientated patterns, obviously though I'm expecting to be doing it ...
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72 views

Creating list ViewModels in the correct way

I'm using Caliburn Micro to create a WPF application. So what I want to do here is a typical Master/Detail situation. I'm displaying a list of Users and you can can add/edit a User and save the ...
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1answer
971 views

Saving a collection of WPF user control layout into an XPS document

I am making an application to save a layout of user control into an .xps document. But, the export doesn't seem completed if the data is too many. I've tried to encapsulate each part with ...
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213 views

Nhibernate repository for MVVM applications

I am developing a single user .net desktop application that lists numerous (over 2000) contacts sorted by an algorithm. I use NHibernate and did consider a session ...
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1answer
290 views

WPF Binding to a Repository with Entity-Framework

I have an MVVM WPF application that will make use of a repository and unit-of-work. This is my Entity Framework database-first model: ...
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2answers
2k views

Understanding the MVVM concepts and validation of my code

I have been learning MVVM concepts and trying to implement it in my new project. I want to validate my work that I have been doing these past days. I want to know if I follow correctly the MVVM ...
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1answer
425 views

Implementing ViewModel design pattern using DI in a MVP-VM architecture

Based on this answer: MVVM implementation using C# and XAML, I understand that my ViewModel is some kind of a wrapper for my Model. Being a fan of DI and SOLID principles, I have made my ViewModel ...
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1answer
5k views

WPF ListView Pagination using MVVM Pattern

A few days ago, I was looking for simple pagination example and I decided to write my own version. It is one of my first apps using MVVM Pattern, so I am not sure I did right. I would appreciate if ...
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178 views

Dealing with the need to pass the root view model down to the children

I tend to feel the need in my Knockout applications to pass along a reference of the root view model down to the sub view models. However, I don't like the fact that I then have a dependency that lies ...
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2answers
2k views

Add or view pattern with MVVM

I have a model called WorkOrder which I want to be able to manage from a single window. The required operations (for now) are only Insert and view, so this is what ...
5
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1answer
824 views

Caliburn.Micro nested ViewModels

I am currently developing a small tool intended to help me keep track of the myriad of characters in my Stories. The tool does the following: Load the characters which are currently stored as json ...
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1answer
284 views

Fat ViewModels for editing images

How should I deal with ViewModels that are "fat"? Or should I just accept it sometimes. Example - one of my ViewModels (editing ...
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2answers
331 views

Select item of IEnumerable<T> in UI (MVVM)

Please, help improve following code. I have list of users, item of the list has buttons remove (remove user from list) and profile (navigate to user profile). I use ...
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2answers
4k views

Access View from current/corresponding ViewModel

Sometimes when developing a WPF application, I need to access a certain Window (View) from the corresponding ...
2
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1answer
488 views

ViewStateManager for more than just Controls?

Okay - so basically I have a login form that has a couple of 'states' it needs to display (connecting, input credentials, authenticating, invalid credentials, etc...etc...) - in the past I've ...
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2answers
524 views

Am I handling “spot the missing DLL” right?

I have a .net 4.5 desktop script which has dependencies on some third party libraries (dll's). These libraries are used in my MainWindowViewModel. I need to check ...
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1answer
204 views

RSS reader and model (logic) layer in practise

I have written a logic part in my app. I'd like to learn best practices, so can you please check my class? This class is a little too big in my opinion, but I have no idea what I should do now. I've ...
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1answer
421 views

Insert Model object effectively using entity framwork

I have a WPF MVVM Application. I have a Customer Model which is generated by an entity framework (Database first approach) and one CustomerViewModel where I ...
7
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1answer
180 views

MV* Pattern for a board game

I have made a small game in Javascript, while simultaneously learn about the ever so popular model view controller. The game is this, there are 3 players(green, purple, yellow) and they have to try ...
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1answer
103 views

Manage a collection of settings in memory with global scope

I have a WPF app and a bunch of read/write settings that need to be accessible from various view models. a setting can be any type (string, ...