RFBCodeWorks.Mvvm.Controls 1.0.2

.NET 5.0 .NET Core 3.1 .NET Framework 4.7.2 
dotnet add package RFBCodeWorks.Mvvm.Controls --version 1.0.2
NuGet\Install-Package RFBCodeWorks.Mvvm.Controls -Version 1.0.2
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="RFBCodeWorks.Mvvm.Controls" Version="1.0.2" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
paket add RFBCodeWorks.Mvvm.Controls --version 1.0.2
#r "nuget: RFBCodeWorks.Mvvm.Controls, 1.0.2"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
// Install RFBCodeWorks.Mvvm.Controls as a Cake Addin
#addin nuget:?package=RFBCodeWorks.Mvvm.Controls&version=1.0.2

// Install RFBCodeWorks.Mvvm.Controls as a Cake Tool
#tool nuget:?package=RFBCodeWorks.Mvvm.Controls&version=1.0.2

MvvmControls

This is a Library designed to ease working within an MVVM framework, and is meant to consolidate boiler-plate ViewModel interactions for common WPF controls into pre-built classes.

XAML Namespace:

Usage Namespace
Converters xmlns:converters="https://github.com/RFBCodeWorks/MvvmControls/WPF.Converters"
Custom Controls xmlns:cc="https://github.com/RFBCodeWorks/MvvmControls/WPF.Controls"
Attached Behaviors xmlns:cb="https://github.com/RFBCodeWorks/MvvmControls/WPF.Behaviors"
Specialized ViewModels xmlns:cs="https://github.com/RFBCodeWorks/MvvmControls/Mvvm/Specialized"

Mvvm.Primitive Classes

These classes are the base classes the main objects are derived from, and follow a strucute similar to System.Windows.Controls namespace.

  • ControlBase : ObservableObject
    • Properties:- bool IsEnabled { get; set; }
      • bool IsVisible { get; set; }
      • Visibility Visibility { get; set; }
    • Events:
      • VisibilityChanged
  • ItemSource<T,E> : ControlBase where E:IList<T>
    • Base class for an ItemSource control.
    • Type Parameters
      • T : The object that will be housed in the collection of type E
      • E : The collection type - Must implement IList<T>
    • Properties
      • string DisplayMemberPath - Set which property to display (for example, display the 'Name' in the combobox)
      • E Items - The collection of items
    • Events:
      • ItemSourceChanged - occurs when the Items property is set to a new collection
  • SelectorDefinition<T,E,V> : ItemSource <T,E> where E:IList<T>
    • Extends the ItemSource<T,E> class for use with Selector controls, such as ComboBox and ListBox
    • Properties:
      • T SelectedItem -- The currently selected item
      • string SelectedValuePath -- Optional setting that allows setting a 'ValuePath' for the control to utilize. Ex: "ID" --> SelectedValue = SelectedItem.ID
      • V SelectedValue -- The currently selected value by the SelectedValuePath - This should be only set by the control, not in code.
    • Events:
      • SelectedItemChanged - Occurs when a new item is selected
      • SelectedValueChanged - Occurs when the SelectedValue property changes
  • AbstractCommand, AbstractCommand<T>, AbstractAsyncCommand, AbstractAsyncCommand<T>
    • These are abstract ICommand objects that implement the Community Toolkit's IRelayCommand interface
  • AbstractButtonDefinition, AbstractButtonDefinition<T>, AbstractAsyncButtonDefinition, AbstractAsyncButtonDefinition<T>
    • These are abstract classes that implement the IButtonDefinition & ICommand interfaces, for use with to bind with to the button control
  • ToggleButtonDefinition
    • Base class for RadioButton and CheckBox button definitions

Concrete Classes

  • ButtonDefinition, ButtonDefinition<T>, AsyncButtonDefinition, AsyncButtonDefinition<T>

    • These sealed classes are derived from their respective abstract versions.
    • They utilize IRelayCommand objects to implement ICommand.

  • RelayCommand, RelayCommand<T>, AsyncRelayCommand, AsyncRelayCommand<T>

    • These ICommand objects are sealed, but are derived from their respective abstract primitives.

  • ListBoxDefinition, ComboBoxDefinition - Derived from Primitives.SelectorDefinition

    • ListBox- and ComboBox- Definition objects are used to represent a user's interaction with a Listbox or ComboBox
    • Both extend Primitives.SelectorDefinition with properties specific to their associated controls.
    • With the WPF.Behaviors.MultiItemSelectionBehavior properties attached to a listbox, a Listbox also supports multi-item selection modes.

  • CheckBoxDefinition, RadioButtonDefinition - Derived from Primitives.ToggleButton

    • CheckBoxDefinition is directly derived from Primitives.ToggleButton, and implements ICheckBox
    • RadioButton adds the 'GroupName' property, and implements IRadioButton.
    • RadioButton also overrides the IsThreeState property to FALSE.

  • TextControlDefinition - Derived from Primitives.ControlBase

    • While a textbox would normally just be bound to a string, since this is derived from ControlBase, it allows for the enabling/disabling/visibility control over the textbox. Additional members include:
      • Func<string> GetText - A function that can be executed to set the Text property
      • string Text - The text to display in the textbox
      • bool IsReadOnly - Set the textbox to ReadOnly mode
      • Refresh() - Invokes GetText() to update the Text property
      • Refresh(object, eventargs) - Provides a way to automatically refresh the Text property by subscribing the object to an external event

A simplified ComboBox Experience

A ComboBox has the following properties that the ViewModel may interact with:

  • ItemSource (The items within the drop-down)
  • SelectedItem (The currently selected item)
  • SelectedValue \ SelectedValuePath ( The value of the SelectedItem, as an object, typically a property of the item )
  • SelectedItemChanged event - Occurs and a new item is selected
  • ItemSourceChanged event - Occurs when the itemsource is updated
  • IsEnabled - Enable/Disable a control from within the ViewModel
  • Visibilty / IsVisible - Toggle visibility of an item from within the ViewModel

This can all be set up within the ViewModel like so:

public class MyViewModel {

  public MyViewModel()
  {
   MyComboBox = new ComboBoxDefinition<string>()
   {
     ItemSource = new string[] { "Index0", "Index1", "Index2", "Index3" }
   };
   ComboBoxDefinition.SelectedItemChanged += NewItemSelected;
  }
  public ComboBoxDefinition<string> MyComboBox { get; }

  private void NewItemSelected(object sender, EventArgs e) { /* React to item selection */ } 
}

And the corresponding xaml:

	xmlns:cb="https://github.com/RFBCodeWorks/MvvmControls/WPF.Behaviors"
	
  <ComboBox cb:ControlDefinitions.ComboBoxDefinition="{Binding ComboBoxDefinition}" />

Development Targets

This library utilizes C#9.0 for init setters.

Build Targets:

  • .NetFramework net472, net480
  • .NetCoreApp3.1
  • .Net5.0-windows
  • .Net6.0-windows
  • .Net7.0-windows
Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net5.0-windows7.0 is compatible.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net6.0-windows7.0 is compatible.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net7.0-windows7.0 is compatible.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
.NET Core netcoreapp3.1 is compatible. 
.NET Framework net472 is compatible.  net48 is compatible.  net481 was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

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Version Downloads Last updated
1.0.2 232 11/10/2023
1.0.1.2 127 11/2/2023
1.0.1 122 10/31/2023
1.0.0.7 134 10/29/2023
1.0.0.6 145 10/12/2023
1.0.0.5 109 10/11/2023
1.0.0.4 188 3/29/2023
1.0.0.3 257 1/27/2023
1.0.0.2 242 1/27/2023

- Add XmlnsDefinition properties for easier XAML setup
           
           Breaking Changes (Namespace/Class name adjustments):
           - Relocate ReactiveStyles.Helpers to the Behaviors namespace to reduce XAML namespacing requirements.
           - Relocate Mvvm.XmlLinq.Controls.TreeViewItems into Mvvm.Specialized
           - Normalize Specialized TreeViewItems names:
           --- TreeViewFileInfo -> FileInfoTreeViewItem
           --- TreeViewDirectoryInfo -> DirectoryInfoTreeViewItem

           Deprecated Functionality (use WPF Styles instead):
           - Behaviors.ReactiveStyles.IsTabletMode
           - Behaviors.ReactiveStyles.IsDirtySetters
           - Behaviors.ReactiveStyles.IsInvalidSetters