BetterDP 1.0.4

.NET 5.0 .NET Core 3.1 .NET Framework 4.6.2
Install-Package BetterDP -Version 1.0.4
dotnet add package BetterDP --version 1.0.4
<PackageReference Include="BetterDP" Version="1.0.4" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add BetterDP --version 1.0.4
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
#r "nuget: BetterDP, 1.0.4"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install BetterDP as a Cake Addin
#addin nuget:?package=BetterDP&version=1.0.4

// Install BetterDP as a Cake Tool
#tool nuget:?package=BetterDP&version=1.0.4
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

BetterDP

Simpler declaration for WPF Dependency Properties

About

Dependency Properties are a neat feature of WPF, allowing powerful data binding mechanisms.

However, declaring custom properties is not really straightforward and leads to a lot of boilerplate code.
As an example:

using System.Windows;

public class Foo: DependencyObject
{
    public static readonly DependencyProperty BarProperty = DependencyProperty.Register
    (
        "Bar",
        typeof( string ),
        typeof( Foo ),
        new PropertyMetadata()
    );

    public string Bar
    {
        get => this.GetValue( BarProperty ) as string;
        set => this.SetValue( BarProperty, value );
    }
}

This package provides a way to reduce the amount of code needed to declare such a property, by introducing a custom [DP] attribute.
The new syntax is then:

using System.Windows;
using BetterDP;

public class Foo: DependencyObject
{
    static Foo()
    {
        DP.InitializeProperties( typeof( Foo ) );
    }

    [DP]
    public string Bar
    {
        get => this.Get< string >();
        set => this.Set( value );
    }
}

Initialization

BetterDP will automatically create dependency properties for every property marked with the DP attribute.
However, this unfortunately cannot be done lazily, as dependency properties usually need to be available before constructing an object, especially when using XAML bindings.

This is why the example above uses a static constructor.
Calling DP.InitializeProperties will ensure every dependency property is properly initialized.

Default values

A default value can be provided directly within the [DP] attribute, such as:

[DP( DefaultValue = "hello, world" )]
public string Bar
{
    get => this.Get< string >();
    set => this.Set( value );
}

This is the equivalent of setting a default value with PropertyMetadata or FrameworkPropertyMetadata.

Change Handlers

In order to be notified when a property has changed, you may implement the following method in your class:

protected virtual void DidChangeDependencyProperty( string name, object value )
{}

It will automatically be called when a property marked with [DP] has changed.

License

BetterDP is released under the terms of the MIT License.

Repository Infos

Owner:          DigiDNA
Web:            www.digidna.net
Blog:           imazing.com/blog
Twitter:        @DigiDNA
GitHub:         github.com/DigiDNA
Product Versions
.NET net5.0 net5.0-windows net5.0-windows7.0 net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows
.NET Core netcoreapp3.1
.NET Framework net462 net463 net47 net471 net472 net48
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.
  • .NETCoreApp 3.1

    • No dependencies.
  • .NETFramework 4.6.2

    • No dependencies.
  • net5.0-windows7.0

    • No dependencies.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last updated
1.0.4 374 7/3/2021
1.0.3 205 6/24/2021
1.0.2 202 4/27/2021
1.0.1 387 7/29/2020
1.0.0 325 7/28/2020