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1 Articles match "Base Classes","WPF"
| Related DevelopMentor Courses | MORE | | Screening C# Candidates: Let’s Play 20 Questions! For example, someone might be called upon to build a WPF app retrieving data from a WCF service that queries a SQL database using Entity Framework with Ninject for dependency injection and MOQ for unit testing. Can a class have more than one direct base class? What keyword makes a member visible to inherited classes? What keyword makes a class visible only within its assembly? What keyword prevents a class from being used as a base class? What keyword constrains a generic type argument to derive from a particular class? DevelopMentor Courses - Tuesday, February 28, 2012 |
23 Articles match "Base Classes","WPF"
| The Latest from DevelopMentor | MORE | | Screening C# Candidates: Let’s Play 20 Questions! For example, someone might be called upon to build a WPF app retrieving data from a WCF service that queries a SQL database using Entity Framework with Ninject for dependency injection and MOQ for unit testing. Can a class have more than one direct base class? What keyword makes a member visible to inherited classes? What keyword makes a class visible only within its assembly? What keyword prevents a class from being used as a base class? What keyword constrains a generic type argument to derive from a particular class? DevelopMentor Courses - Tuesday, February 28, 2012 Validation with Simple MVVM Toolkit INotifyDataErrorInfo is supported by Silverlight 4, but it is not supported by WPF and will only have limited support in Windows Phone 7.1. In WCF RIA Services, for example, the Entity class, which is the base class for client-side entities, implements INotifyDataErrorInfo. Similarly, the ModelBase class in the SimpleMvvmToolkit namespace, implements this interface, for scenarios in which you are not using WCF RIA Services. In the ViewModelDetailBase class, which accepts a TModel type argument, supports validation with an IsValid property. In version 2.1 Tony and Zuzana's World - Sunday, July 10, 2011 Simple MVVM Toolkit versus MVVM Light Toolkit It is designed with the idea that a design based on simplicity reduces the time spent learning a framework and makes your apps easier to develop and maintain. In fact, Simple MVVM Toolkit includes just about every feature you need to build real-world line of business apps based on the MVVM design pattern. Both Simple MVVM and MVVM Light toolkits support WPF, Silverlight and Windows Phone clients. Both toolkits provide a ViewModel base class that implements INotifyPropertyChanged with lambda expressions to support type-safe two-way data binding. Platforms. Tony and Zuzana's World - Saturday, April 23, 2011 | -
| The Best from DevelopMentor | MORE | - WPF MVVM Helper Library (WPF + MVVM = testability)
There's been a lot of talk about the Model-View-ViewModel pattern recently and it's usage around the WPF and Silverlight technology stack. When teaching WPF, I always introduce students to MVVM as part of the Essential WPF class, it's an incredibly useful pattern that really separates the UI from the code behind behavior. bit of history -- the library is really just a place where I dump all kinds of useful utility classes, helpers, wrappers, etc. < Window x : Class ="TestMvvm.MainWindow". Tags: NET WPF that I tend to use a lot. file -. - Part 3: Shifting focus to the first available element in WPF
We've seen how to programatically control focus and that's all great stuff, but one thing I like to do with WPF is see how much of the repetitive or UI-specific code I can move into the XAML and keep out of the code behind. Creating a markup extension is trivial - you just extend the MarkupExtension base class and implement the ProvideValue method. With this new extension, I can now add a single line of code to each user control: <UserControl x:Class="FocusTest.Page2". Tags: NET;WPF So it might seem we are stuck with adding code behind logic (blech!) - Part 3: Shifting focus to the first available element in WPF
We've seen how to programatically control focus and that's all great stuff, but one thing I like to do with WPF is see how much of the repetitive or UI-specific code I can move into the XAML and keep out of the code behind. Creating a markup extension is trivial - you just extend the MarkupExtension base class and implement the ProvideValue method. With this new extension, I can now add a single line of code to each user control: <UserControl x:Class="FocusTest.Page2". Tags: NET WPF So it might seem we are stuck with adding code behind logic (blech!) - MVVM: Views and ViewModels
Views are the UI presentation of data - in the case of a WPF/Silverlight application this is most commonly the XAML and XAML code behind files (they are considered a single element together). That way, my ViewModel sticks with base (non-WPF) types. This is necessary under WPF 3.5 public class FileViewModel : SimpleViewModel. {. ///. /// Marker file that signals expansion of the tree. ///. This is one of three primary VM classes in the MVVM helper library. No other services are provided by this base class, and as such it is very light. - Replacing Services in MVVM Helpers
MEF allows you to compose your application dynamically – looking up concrete implementations for interfaces or base classes through a set of registered catalogs. ll start with a brand-new WPF application and add MVVMHelpers through NuGet – a new service from Microsoft for adding dependencies easily: Next, let’s add a single button and a TextBlock to the window, in two equally spaced rows – binding the first to a command called “CalculatePi” and the second to some text “PiText”. NET Code MVVM WPFand provided on [link] for.NET 3.5. private void OnCalculatePi(). - Screening C# Candidates: Let’s Play 20 Questions!
For example, someone might be called upon to build a WPF app retrieving data from a WCF service that queries a SQL database using Entity Framework with Ninject for dependency injection and MOQ for unit testing. Can a class have more than one direct base class? What keyword makes a member visible to inherited classes? What keyword makes a class visible only within its assembly? What keyword prevents a class from being used as a base class? What keyword constrains a generic type argument to derive from a particular class? DevelopMentor Courses - Tuesday, February 28, 2012 - NativeActivity – A Tricky Beast
At this point you have to fall back to writing code and there are three options for your base class when writing an activity in code: CodeActivity. talked about is a while back here when the PDC CTP first came out (that’s what the reference to some base class called WorkflowElement is about) but to expand a little: The Activity is really just a template containing the code to execute for the activity. If you are using a CodeActivity base class then most of this is hidden from you except that you have to access arguments by passing in the ExecutionContext. .NET Meanderings - Tuesday, February 9, 2010 %>
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