Feature/add attached property source generator (#132)

* feat: add AttachedProperty SourceGenerator

* docs: improve markdown files for control and move some to the docs folder - and ensure the sample app can reach the files

* docs: improve markdown files for control and move some to the docs folder - and ensure the sample app can reach the files

* feat: add support for ValidateValueCallback on Dependency and Attached property

* test: add AsyncRelayCommand_NoParameter_CancellationToken

* feat: improve RelayCommand for multi parameterTypes on method-target

* docs: improve viewmodel

* feat: improve sample of AttachedProperty

* docs: update readme

Author: davidkallesen

Diff for: Atc.Wpf.sln

@@ -40,6 +40,18 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Atc.Wpf.SourceGenerators",
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Atc.Wpf.SourceGenerators.Tests", "test\Atc.Wpf.SourceGenerators.Tests\Atc.Wpf.SourceGenerators.Tests.csproj", "{6B9C0EC5-1D71-4B95-96C8-E5A7FCDF8276}"
 EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "SourceGenerators", "SourceGenerators", "{02EA681E-C7D8-13C7-8484-4AC65E1B71E8}"
+	ProjectSection(SolutionItems) = preProject
+		docs\SourceGenerators\AttachedProperty.md = docs\SourceGenerators\AttachedProperty.md
+		docs\SourceGenerators\DependencyProperty.md = docs\SourceGenerators\DependencyProperty.md
+		docs\SourceGenerators\ViewModel.md = docs\SourceGenerators\ViewModel.md
+	EndProjectSection
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Mvvm", "Mvvm", "{02E4711C-F1F1-4682-8111-47957F772DDD}"
+	ProjectSection(SolutionItems) = preProject
+		docs\Mvvm\@Readme.md = docs\Mvvm\@Readme.md
+	EndProjectSection
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -111,9 +123,11 @@ Global
 		{F4BE59B5-26CB-46DB-B290-2049EF656693} = {0FA723AA-8BA7-42AD-9C08-6491F364A258}
 		{104F4D6B-3991-4FBA-9234-0B37DF6BB292} = {0FA723AA-8BA7-42AD-9C08-6491F364A258}
 		{6B9C0EC5-1D71-4B95-96C8-E5A7FCDF8276} = {2C893B25-2401-44B7-9FDA-7DC496C00D2B}
+		{02EA681E-C7D8-13C7-8484-4AC65E1B71E8} = {133AFD8A-A870-41D7-8A97-763A36D2502A}
+		{02E4711C-F1F1-4682-8111-47957F772DDD} = {133AFD8A-A870-41D7-8A97-763A36D2502A}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
-		SolutionGuid = {7A92D7EC-F444-456B-A86C-D6683E016C35}
 		RESX_Rules = {"EnabledRules":["StringFormat","WhiteSpaceLead","WhiteSpaceTail","PunctuationTail"]}
+		SolutionGuid = {7A92D7EC-F444-456B-A86C-D6683E016C35}
 	EndGlobalSection
 EndGlobal

Diff for: README.md

@@ -10,21 +10,23 @@ This is a base libraries for building WPF application with the MVVM design patte
 - [Table of contents](#table-of-contents)
   - [Requirements](#requirements)
   - [NuGet Packages Provided in this Repository](#nuget-packages-provided-in-this-repository)
-  - [Demonstration Application](#demonstration-application)
-    - [Playground and Viewer for a Given Control or Functionality](#playground-and-viewer-for-a-given-control-or-functionality)
+- [🔎 Demonstration Application](#-demonstration-application)
+  - [Playground and Viewer for a Given Control or Functionality](#playground-and-viewer-for-a-given-control-or-functionality)
     - [Initial glimpse at the demonstration application](#initial-glimpse-at-the-demonstration-application)
-  - [How to get started with atc-wpf](#how-to-get-started-with-atc-wpf)
-  - [Readme's for each NuGet Package area](#readmes-for-each-nuget-package-area)
-    - [Atc.Wpf](#atcwpf)
-      - [Controls](#controls)
-      - [Misc](#misc)
-    - [Atc.Wpf.Controls](#atcwpfcontrols)
-      - [Controls](#controls-1)
-      - [Misc](#misc-1)
-    - [Atc.Wpf.FontIcons](#atcwpffonticons)
-      - [Misc](#misc-2)
-    - [Atc.Wpf.Theming](#atcwpftheming)
-  - [How to contribute](#how-to-contribute)
+- [🚀 How to get started with atc-wpf](#-how-to-get-started-with-atc-wpf)
+  - [WPF with MVVM Easily Separate UI and Business Logic](#wpf-with-mvvm-easily-separate-ui-and-business-logic)
+- [📝 Readme's for each NuGet Package area](#-readmes-for-each-nuget-package-area)
+  - [💟 Atc.Wpf](#-atcwpf)
+    - [Controls](#controls)
+    - [Misc](#misc)
+  - [💟 Atc.Wpf.Controls](#-atcwpfcontrols)
+    - [Controls](#controls-1)
+    - [Misc](#misc-1)
+  - [💟 Atc.Wpf.FontIcons](#-atcwpffonticons)
+    - [Misc](#misc-2)
+  - [💟 Atc.Wpf.Theming](#-atcwpftheming)
+- [⚙️ Source Generators](#️-source-generators)
+- [How to contribute](#how-to-contribute)
 
 ## Requirements
 
@@ -34,19 +36,19 @@ This is a base libraries for building WPF application with the MVVM design patte
 
 | Nuget package           | Description                                         | Dependencies                   |
 |-------------------------|-----------------------------------------------------|--------------------------------|
-| Atc.Wpf                 | Base Controls, ValueConverters, Extensions etc.     | Atc & Atc.Wpf.SourceGenerators |
-| Atc.Wpf.Controls        | Miscellaneous UI Controls                           | Atc.Wpf & Atc.Wpf.Theming      |
-| Atc.Wpf.Controls.Sample | Controls for creating WPF sample apps               | Atc.Wpf & Atc.Wpf.Theming      |
-| Atc.Wpf.FontIcons       | Render Svg and Img resources based on fonts         | Atc.Wpf                        |
-| Atc.Wpf.Theming         | Theming for Light & Dark mode for WPF base controls | Atc.Wpf                        |
+| 💟 Atc.Wpf                 | Base Controls, ValueConverters, Extensions etc.     | Atc & Atc.Wpf.SourceGenerators |
+| 💟 Atc.Wpf.Controls        | Miscellaneous UI Controls                           | Atc.Wpf & Atc.Wpf.Theming      |
+| 💟 Atc.Wpf.Controls.Sample | Controls for creating WPF sample apps               | Atc.Wpf & Atc.Wpf.Theming      |
+| 💟 Atc.Wpf.FontIcons       | Render Svg and Img resources based on fonts         | Atc.Wpf                        |
+| 💟 Atc.Wpf.Theming         | Theming for Light & Dark mode for WPF base controls | Atc.Wpf                        |
 
-## Demonstration Application
+# 🔎 Demonstration Application
 
 The demonstration application, `Atc.Wpf.Sample`, functions as a control explorer.
 It provides quick visualization of a given control, along with options for
 copying and pasting the XAML markup and/or the C# code for how to use it.
 
-### Playground and Viewer for a Given Control or Functionality
+## Playground and Viewer for a Given Control or Functionality
 
 The following example is taken from the ReplayCommandAsync which illustrates its usage:
 
@@ -70,16 +72,16 @@ The following example is taken from the ReplayCommandAsync which illustrates its
 | Wpf.Theming - ImageButton ![Img](docs/images/lm-wpf-theming-imagebutton.png) | Wpf.Theming - ImageButton ![Img](docs/images/dm-wpf-theming-imagebutton.png) |
 | Wpf.FontIcons - Viewer ![Img](docs/images/lm-wpf-fonicons-viewer.png)        | Wpf.FontIcons - Viewer ![Img](docs/images/dm-wpf-fonicons-viewer.png)        |
 
-## How to get started with atc-wpf
+# 🚀 How to get started with atc-wpf
 
 First of all, include Nuget packages in the `.csproj` file like this:
 
 ```xml
   <ItemGroup>
-    <PackageReference Include="Atc.Wpf" Version="2.0.178" />
-    <PackageReference Include="Atc.Wpf.Controls" Version="2.0.178" />
-    <PackageReference Include="Atc.Wpf.FontIcons" Version="2.0.178" />
-    <PackageReference Include="Atc.Wpf.Theming" Version="2.0.178" />
+    <PackageReference Include="Atc.Wpf" Version="latest" />
+    <PackageReference Include="Atc.Wpf.Controls" Version="latest" />
+    <PackageReference Include="Atc.Wpf.FontIcons" Version="latest" />
+    <PackageReference Include="Atc.Wpf.Theming" Version="latest" />
   </ItemGroup>
 ```
 
@@ -105,126 +107,78 @@ Then update `App.xaml` like this:
 
 Now it is possible to use controls with theming and default WPF controls like TextBox, Button etc. with theme style.
 
-## Readme's for each NuGet Package area
+## WPF with MVVM Easily Separate UI and Business Logic
+
+With the `Atc.Wpf`, package, it is very easy to get startet with the nice `MVVM pattern`
+
+Please read more here:
+
+- [MVVM framework](docs/Mvvm/@Readme.md)
+  - [Observerble properties](docs/Mvvm/@Readme.md)
+  - [RelayCommands](docs/Mvvm/@Readme.md)
+
+# 📝 Readme's for each NuGet Package area
 
 ***Note: Right now, it is a limit amount of controls and components there is documented with a `Readme.md` file.
-Therefore run the `Atc.Wpf.Sample` application to explore all the controls and components.*** :-)
+Therefore run the `Atc.Wpf.Sample` application to explore all the controls and components.*** 😊
 
-### Atc.Wpf
+## 💟 Atc.Wpf
 
-#### Controls
+### Controls
 
-- [GridEx](src/Atc.Wpf/Controls/Layouts/GridEx_Readme.md)
-- [StaggeredPanel](src/Atc.Wpf/Controls/Layouts/StaggeredPanel_Readme.md)
-- [UniformSpacingPanel](src/Atc.Wpf/Controls/Layouts/UniformSpacingPanel_Readme.md)
-- [SvgImage](src/Atc.Wpf/Controls/Media/SvgImage_Readme.md)
-- Control Helpers
+- Layouts
+  - [GridEx](src/Atc.Wpf/Controls/Layouts/GridEx_Readme.md)
+  - [StaggeredPanel](src/Atc.Wpf/Controls/Layouts/StaggeredPanel_Readme.md)
+  - [UniformSpacingPanel](src/Atc.Wpf/Controls/Layouts/UniformSpacingPanel_Readme.md)
+- Media
+  - [SvgImage](src/Atc.Wpf/Controls/Media/SvgImage_Readme.md)
+- Helpers
   - [PanelHelper](src/Atc.Wpf/Helpers/PanelHelper_Readme.md)
 
-#### Misc
+### Misc
 
-- [MVVM framework](src/Atc.Wpf/Mvvm/@Readme.md)
-  - [RelayCommand's](src/Atc.Wpf/Command/@Readme.md)
 - [ShaderEffects](src/Atc.Wpf/Media/ShaderEffects/@Readme.md)
   - [How to use HLSL Shader Compiler](src/Atc.Wpf/Media/ShaderEffects/Shaders/@Readme.md)
 - [Tranlation & localizaion](src/Atc.Wpf/Translation/@Readme.md)
 - [ValueConverters](src/Atc.Wpf/ValueConverters/@Readme.md)
 
-### Atc.Wpf.Controls
+## 💟 Atc.Wpf.Controls
 
-#### Controls
+### Controls
 
 - [WellKnownColorPicker](src/Atc.Wpf.Controls/ColorControls/WellKnownColorPicker_Readme.md)
 
-#### Misc
+### Misc
 
 - [ValueConverters](src/Atc.Wpf.Controls/ValueConverters/@Readme.md)
 
-### Atc.Wpf.FontIcons
+## 💟 Atc.Wpf.FontIcons
 
-#### Misc
+### Misc
 
 - [ValueConverters](src/Atc.Wpf.FontIcons/ValueConverters/@Readme.md)
 
-### Atc.Wpf.Theming
+## 💟 Atc.Wpf.Theming
 
 - [ValueConverters](src/Atc.Wpf.Theming/ValueConverters/@Readme.md)
 
-### Source Generators
+# ⚙️ Source Generators
 
-In MVVM, certain attributes help automate boilerplate code using source generators.
+In for WPF, certain attributes help automate boilerplate code using source generators.
 
-Example for ViewModel classes  
+Read more about here:
 
-![MVVM Source Generation](docs/images/mvvm-source-generated.png)
-
-For more details, see the [MVVM](src/Atc.Wpf/Mvvm/@Readme.md) section.
+- [SourceGenerators for AttachedProperties](docs/SourceGenerators/AttachedProperty.md)
+- [SourceGenerators for DependencyProperties](docs/SourceGenerators/DependencyProperty.md)
+- [SourceGenerators for ViewModel](docs/SourceGenerators/ViewModel.md)
 
-### DependencyProperty
+Example for ViewModel classes
 
-### Human made Code for complex property
-
-```csharp
-[DependencyProperty<bool>("IsRunning")]
-public partial class MyControl : UserControl
-{
-}
-```
-
-### Human made Code for simple property
-
-```csharp
-[DependencyProperty<bool>("IsRunning"]
-public partial class MyControl : UserControl
-{
-}
-```
-
-### Generated Code for simple property
-
-```csharp
-public partial class MyControl
-{
-    public static readonly DependencyProperty IsRunningProperty = DependencyProperty.Register(
-        nameof(IsRunning),
-        typeof(bool),
-        typeof(MyControl),
-        new FrameworkPropertyMetadata(defaultValue: BooleanBoxes.TrueBox);
-            
-    public bool IsRunning
-    {
-        get => (bool)GetValue(IsRunningProperty);
-        set => SetValue(IsRunningProperty, value);
-    }
-}
-```
+![MVVM Source Generation](docs/images/mvvm-source-generated.png)
 
-### Generated Code for complex property
-
-```csharp
-public partial class MyControl
-{
-    public static readonly DependencyProperty IsRunningProperty = DependencyProperty.Register(
-        nameof(IsRunning),
-        typeof(bool),
-        typeof(MyControl),
-        new FrameworkPropertyMetadata(
-            defaultValue: BooleanBoxes.TrueBox,
-            propertyChangedCallback: PropertyChangedCallback,
-            coerceValueCallback: CoerceValueCallback,
-            flags: FrameworkPropertyMetadataOptions.AffectsMeasure | FrameworkPropertyMetadataOptions.AffectsRender,
-            defaultUpdateSourceTrigger: UpdateSourceTrigger.Default,
-            isAnimationProhibited: true));
-            
-    public bool IsRunning
-    {
-        get => (bool)GetValue(IsRunningProperty);
-        set => SetValue(IsRunningProperty, value);
-    }
-}
-```
+For more details, see the [MVVM](docs/Mvvm/@Readme.md) section.
 
-## How to contribute
+# How to contribute
 
 [Contribution Guidelines](https://atc-net.github.io/introduction/about-atc#how-to-contribute)
 

Diff for: docs/Mvvm/@Readme.md

@@ -0,0 +1,50 @@
+# MVVM in WPF
+
+Windows Presentation Foundation (WPF) fully supports the **Model-View-ViewModel (MVVM)** pattern, which promotes a clear separation of concerns between the UI and business logic.
+
+The **Atc.Wpf** library provides a robust foundation for implementing MVVM effectively, reducing boilerplate code and simplifying development.
+
+## Features
+
+The `Atc.Wpf` library offers a variety of base classes and utilities to streamline MVVM implementation:
+
+| Component                 | Description                                                                      |
+|---------------------------|--------------------------------------------------------------------------------|
+| `ViewModelBase`           | A base class for ViewModels.                                                   |
+| `MainWindowViewModelBase` | A base class for the main window ViewModel.                                    |
+| `ViewModelDialogBase`     | A base class for dialog ViewModels.                                            |
+| `ObservableObject`        | A base class for observable objects implementing `INotifyPropertyChanged`.     |
+| `RelayCommand`            | A command supporting `CanExecute`.                                             |
+| `RelayCommand<T>`         | A command with a generic parameter and `CanExecute`.                           |
+| `RelayCommandAsync`       | An asynchronous command supporting `CanExecute`.                               |
+| `RelayCommandAsync<T>`    | An asynchronous command with a generic parameter and `CanExecute`.             |
+
+For detailed information about commands, refer to the [RelayCommand documentation](../SourceGenerators/ViewModel.md).
+
+---
+
+### Getting started using `ViewModelBase`
+
+Below is a simple example demonstrating how to create a ViewModel using `ViewModelBase`:
+
+```csharp
+public class MyViewModel : ViewModelBase
+{
+    private string myProperty;
+
+    public string MyProperty
+    {
+        get => myProperty;
+        set
+        {
+            if (myProperty == value)
+            {
+                return;
+            }
+
+            myProperty = value;
+            RaisePropertyChanged();
+        }
+    }
+}
+```