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  • Home
  • Presentation
    • AbstractViewModel
    • Conventions
      • Bootstrap Conventions
      • Runtime Conventions
      • Conventions override
    • Commands and DelegateCommand
    • IViewResolver
      • Default view behaviors
      • view life cycle events
        • Callback expectations
        • notify messages
    • Message broker MVVM built-in messages
    • Application boot process demystified
      • Application shutdown
      • Singleton applications
    • AbstractMementoViewModel
      • Simple ViewModel graphs
      • Collections and complex ViewModel graphs
    • Validation and Validation Services
  • UI Composition
    • UI Composition
      • Region content lifecycle
      • TabControl region
      • Create a custom region
  • Concepts
    • Inversion of Control
      • Castle Windsor
      • Autofac
      • Unity (v2 & v3)
      • Puzzle Container
    • Entities
      • Property System
    • Messaging and Message Broker
      • POCO messages
      • Standalone message handlers
    • Observers
      • PropertyObserver
      • MementoObserver
      • BrokerObserver
  • Memento
    • Change Tracking Service
      • MementoEntity and MementoEntityCollection
      • Handling change tracking:
        • Simple model
        • Collections
        • Complex objects graph
      • Atomic operations
      • Change Tracking Service API
      • Property Metadata for the ChangeTrackingService
      • Handling collection sync
  • Behaviors
    • DataGrid Behaviors
    • Password
    • Generic routed event handler to command behavior
    • Overlay adorner
      • Busy status manager
    • TextBox behaviors:
      • Command
      • Auto select
      • DisableUndoManager
  • Markup Extensions
    • Editor binding
    • Auto Command binding
  • How to
    • Get the view of a given view model
    • Bi-directional communication between different windows/views
    • Handle the busy status during async/long running operations
    • Implement a customer improvement program
    • Manage focus
    • Create a splash screen
    • Access view model after view is closed
    • Intercept ViewModels before it's used
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  1. Markup Extensions

Editor binding

One of the most annoying thing when dealing with input forms in WPF is that in order to activate all the required feature to support the basic scenario a user expects you end with a binding defined as the following:

<TextBox Text="{Binding Path=MyText, 
                        UpdateSourceTrigger=PropertyChanged, 
                        NotifyOnValidationError=True, 
                        ValidatesOnDataErrors=True, 
                        ValidatesOnExceptions=True}" />

That leads to a waste of time and to a really hard-to-manage xaml markup. In order to eliminate both problems in Radical we introduced our own binding markup extension that has as default values all the values exposed in the previous sample. Using our EditorBinding markup extension the same behavior can be achieved in the following manner:

<TextBox Text="{markup:EditorBinding Path=MyText}" />

simpler and cleaner. The markup extension is defined in the http://schemas.topics.it/wpf/radical/windows/markup xml namespace.

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Last updated 5 years ago