Как предлагается в комментариях и в этом ответе , мне нужно инкапсулировать System.Configuration.SettingsPropertyValue
в ViewModel, которая реализует INotifyPropertyChanged
. В противном случае привязка не будет работать.
ViewModel:
public class SettingsPropertyValueProxy : INotifyPropertyChanged
{
public string Name { get; }
public Type PropertyType => PropertyValue.GetType();
public object PropertyValue
{
get
{
return Properties.Settings.Default[Name];
}
set
{
try
{
Properties.Settings.Default[Name] = Convert.ChangeType(value, PropertyType);
Properties.Settings.Default.Save();
}
catch
{ }
}
}
public SettingsPropertyValueProxy(string name)
{
Name = name;
Properties.Settings.Default.PropertyChanged += (sender, e) => _OnPropertyChanged(e.PropertyName);
}
private void _OnPropertyChanged(string propertyName)
{
if (propertyName == Name) PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(PropertyValue)));
}
public event PropertyChangedEventHandler PropertyChanged;
}
Новое свойство для привязки:
public IEnumerable<SettingsPropertyValueProxy> Values { get; }
= Properties.Settings.Default.Properties
.Cast<SettingsProperty>()
.Select(p => new SettingsPropertyValueProxy(p.Name))
.OrderBy(p => p.Name)
.ToArray();
Правильный просмотр и правильные шаблоны данных:
<ListView Grid.Row="1"
ItemsSource="{Binding Path=Values}"
HorizontalContentAlignment="Stretch" Background="LightGray"
ScrollViewer.HorizontalScrollBarVisibility="Disabled">
<ListView.ItemTemplate>
<DataTemplate>
<DockPanel HorizontalAlignment="Stretch"
IsEnabled="{Binding DataContext.Enabled, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Window}}}">
<Label Width="200" Content="{Binding Path=Name}"/>
<Label Width="200" Content="{Binding Path=PropertyType}" Foreground="Gray" FontStyle="Italic"/>
<!--<TextBox Text="{Binding Path=PropertyValue, Mode=TwoWay}"/>-->
<ContentControl VerticalContentAlignment="Center" Content="{Binding Path=PropertyValue}">
<ContentControl.Resources>
<ResourceDictionary>
<DataTemplate DataType="{x:Type sys:Boolean}">
<CheckBox IsChecked="{Binding Path=PropertyValue, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
DataContext="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type DockPanel}}, Path=DataContext}"/>
</DataTemplate>
<DataTemplate DataType="{x:Type sys:String}">
<TextBox Text="{Binding Path=PropertyValue, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
DataContext="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type DockPanel}}, Path=DataContext}"/>
</DataTemplate>
<DataTemplate DataType="{x:Type sys:Int32}">
<TextBox Text="{Binding Path=PropertyValue, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
DataContext="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type DockPanel}}, Path=DataContext}"/>
</DataTemplate>
</ResourceDictionary>
</ContentControl.Resources>
</ContentControl>
</DockPanel>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>