回答編集履歴

- 参考URLが誤記とはどういうことでしょうか？

-

- それに（あえてurlはだしませんが）こういった怪しげな翻訳サイト（最近日本語のも多く見ますね）ではなく元ネタを探しましょう（ほぼ Stack Overflow が元ネタ）

- [c# - How to display a dynamic object in property grid? - Stack Overflow](https://stackoverflow.com/questions/3491556/how-to-display-a-dynamic-object-in-property-grid)

-

- その回答の中で、

- > a custom TypeConverter, or (alternatively) ICustomTypeDescriptor/TypeDescriptionProvider.

-

- とありましたので [ICustomTypeDescriptor](https://docs.microsoft.com/ja-jp/dotnet/api/system.componentmodel.icustomtypedescriptor) のほうでやってみたところ動いている気がします（あっているかは自信ないです^^;

-

- 参考

- [c# - Dynamic PropertyGrid properties - Stack Overflow](https://stackoverflow.com/questions/10688656/dynamic-propertygrid-properties)

- [Customized Display of Collection Data in a PropertyGrid - CodeProject](https://www.codeproject.com/Articles/4448/Customized-display-of-collection-data-in-a-Propert)

-

- `TypeConverter`でも`ConvertFrom`とかがあればいいのかもしれませんが、`PropertyGrid`を使ったことがないのでぶっちゃけ何もわかってません^^;

-

- ```xaml

- <Window

- x:Class="Questions353706.MainWindow"

- xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

- xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

- xmlns:local="clr-namespace:Questions353706"

- xmlns:xctk="http://schemas.xceed.com/wpf/xaml/toolkit"

- Width="800"

- Height="450">

- <Window.DataContext>

- <local:MainWindowViewModel />

- </Window.DataContext>

- <Grid>

- <Grid.ColumnDefinitions>

- <ColumnDefinition Width="200" MinWidth="100" />

- <ColumnDefinition Width="5" />

- <ColumnDefinition Width="*" />

- </Grid.ColumnDefinitions>

-

- <DockPanel>

- <ListBox

- DisplayMemberPath="Name"

- ItemsSource="{Binding CommandList}"

- SelectedItem="{Binding CommandProperty.Value}" />

- </DockPanel>

-

- <GridSplitter Grid.Column="1" HorizontalAlignment="Stretch" />

-

- <DockPanel Grid.Column="2">

- <Button

- Command="{Binding TestCommand}"

- Content="Test"

- DockPanel.Dock="Bottom" />

- <xctk:PropertyGrid

- SelectedObject="{Binding CommandProperty.Value, UpdateSourceTrigger=PropertyChanged}"

- ShowSearchBox="False"

- ShowSortOptions="False" />

- </DockPanel>

- </Grid>

- </Window>

- ```

-

- ```C#

- using Reactive.Bindings;

- using System;

- using System.Collections.Generic;

- using System.Collections.ObjectModel;

- using System.ComponentModel;

- using System.Diagnostics;

- using System.Linq;

- using System.Reactive.Linq;

- using System.Windows;

-

- namespace Questions353706

- {

- public class CustomObjectType : ICustomTypeDescriptor

- {

- public string Name { get; set; }

- public List<CustomProperty> Properties { get; } = new List<CustomProperty>();

-

- public AttributeCollection GetAttributes() => TypeDescriptor.GetAttributes(this, true);

- public string GetClassName() => TypeDescriptor.GetClassName(this, true);

- public string GetComponentName() => TypeDescriptor.GetComponentName(this, true);

- public TypeConverter GetConverter() => TypeDescriptor.GetConverter(this, true);

- public EventDescriptor GetDefaultEvent() => TypeDescriptor.GetDefaultEvent(this, true);

- public PropertyDescriptor GetDefaultProperty() => TypeDescriptor.GetDefaultProperty(this, true);

- public object GetEditor(Type editorBaseType) => TypeDescriptor.GetEditor(this, editorBaseType, true);

- public EventDescriptorCollection GetEvents() => TypeDescriptor.GetEvents(this, true);

- public EventDescriptorCollection GetEvents(Attribute[] attributes) => TypeDescriptor.GetEvents(this, attributes, true);

- public PropertyDescriptorCollection GetProperties() => GetProperties(null);

- public PropertyDescriptorCollection GetProperties(Attribute[] attributes)

- => new PropertyDescriptorCollection(Properties.Select(x => new CustomPropertyDescriptor(x, null)).ToArray());

- public object GetPropertyOwner(PropertyDescriptor pd) => this;

-

-

- private class CustomPropertyDescriptor : PropertyDescriptor

- {

- public override Type ComponentType => Property.Value.GetType();

- public override bool IsReadOnly => Property.IsReadOnly;

- public override Type PropertyType => Property.Value.GetType();

-

- public override string Name => Property.Name;

- public override string Description => Property.Description;

- public override string Category => Property.Category;

- public override string DisplayName => Property.Name;

- public override bool IsBrowsable => Property.IsVisible;

-

- private readonly CustomProperty Property;

-

- public CustomPropertyDescriptor(CustomProperty Property, Attribute[] Attributes)

- : base(Property.Name, Attributes) => this.Property = Property;

-

- public override bool CanResetValue(object component) => true;

- public override object GetValue(object component) => Property.Value;

- public override void ResetValue(object component) { }

- public override void SetValue(object component, object value) => Property.Value = value;

- public override bool ShouldSerializeValue(object component) => true;

- }

- }

-

- public class CustomProperty

- {

- public string Category { get; set; }

- public string Name { get; set; }

- public object Value { get; set; }

- public string Description { get; set; }

- public bool IsReadOnly { get; set; }

- public bool IsVisible { get; set; } = true;

- public Type Type { get; set; }

- }

-

- public class CommandInfo

- {

- public string CommandName { get; set; }

- public string Summery { get; set; }

- public string Detail { get; set; }

- public int RequestParamNum { get; set; }

- public int ResponseParamNum { get; set; }

- }

-

- public class MainWindowViewModel

- {

- public ReactiveProperty<CustomObjectType> CommandProperty { get; } = new ReactiveProperty<CustomObjectType>();

- public ObservableCollection<CustomObjectType> CommandList { get; }

- public ReactiveCommand TestCommand { get; }

-

- public MainWindowViewModel()

- {

- CommandList = new ObservableCollection<CustomObjectType>(

- Enumerable.Range(1, 5).Select(x => GetCommandProperty(new CommandInfo

- {

- CommandName = $"CommandName{x}",

- Summery = $"Summery{x}",

- Detail = $"Detail{x}",

- RequestParamNum = x,

- ResponseParamNum = x,

- })));

-

- TestCommand = new ReactiveCommand().WithSubscribe(() =>

- {

- if (CommandProperty.Value == null) return;

- Debug.WriteLine($"\n{CommandProperty.Value.Name}");

- foreach (var property in CommandProperty.Value.Properties)

- Debug.WriteLine($"{property.Name}: {property.Value}");

- });

- }

-

- private CustomObjectType GetCommandProperty(CommandInfo info)

- {

- var description = $"{info.Summery}\n{info.Detail}";

- var result = new CustomObjectType

- {

- Name = $"{info.CommandName}",

- };

- result.Properties.Add(new CustomProperty

- {

- Category = "CommandInformation",

- Name = "CommandName",

- Type = typeof(string),

- Description = description,

- Value = info.CommandName,

- });

- result.Properties.Add(new CustomProperty

- {

- Category = "CommandInformation",

- Name = "AdjustBlock",

- Type = typeof(string),

- Description = description,

- Value = info.CommandName,

- });

- result.Properties.Add(new CustomProperty

- {

- Category = "CommandInformation",

- Name = "AdjustCode",

- Type = typeof(string),

- Description = description,

- Value = info.CommandName,

- });

-

- for (var i = 0; i < info.RequestParamNum; i++)

- {

- result.Properties.Add(new CustomProperty

- {

- Category = "RequestParameter",

- Name = $"S{i}",

- Type = typeof(uint),

- Description = $"S{i}",

- Value = 0,

- });

- }

-

- for (var i = 0; i < info.ResponseParamNum; i++)

- {

- result.Properties.Add(new CustomProperty

- {

- Category = "ResponseParameter",

- Name = $"R{i}",

- Type = typeof(uint),

- Description = $"R{i}",

- Value = 0,

- });

- }

-

- return result;

- }

- }

-

- public partial class MainWindow : Window

- {

- public MainWindow() => InitializeComponent();

- }

- }