将样式资源绑定到StackPanel项

Question

我正在尝试将UserControl的本地ResourceDictionary中定义的样式资源绑定到StackPanel中的所有项
StackPanel的ItemSource绑定到ViewModel中的ObservableCollection<Button>。

因此，目的是将样式资源绑定到这些按钮的样式属性。

以下简化方法会导致此错误：

ArgumentException：不允许Style对象影响其应用对象的Style属性。

MyViewModel.cs:

public class MyViewModel
{
public ObservableCollection<Button> MyButtons { get; private set; }
}

MyView.xaml

<UserControl x:Class="MyView"
d:DataContext="{d:DesignInstance Type=MyViewModel}">
<UserControl.Resources>
<ResourceDictionary>
<Style x:Key="StyleStackPanelButton" TargetType="{x:Type Button}"
BasedOn="{StaticResource MyDefaultStyle}">
<Setter Property="Margin" Value="15" />
<Setter Property="HorizontalAlignment" Value="Center" />
<Setter Property="VerticalAlignment" Value="Center" />
</Style>
</ResourceDictionary>
</UserControl.Resources>
<StackPanel>
<ItemsControl ItemsSource="{Binding MyButtons}">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal">
<StackPanel.Resources>
<Style TargetType="{x:Type Button}">
<Setter Property="Style" Value="{StaticResource StyleStackPanelButton}" />
</Style>
</StackPanel.Resources>
</StackPanel>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
</ItemsControl>
<Button Style="{StaticResource StyleStackPanelButton}" />
</StackPanel>
</UserControl>

---

我还尝试使用此处建议的转换器
WPF样式的绑定
如下：

...
<ItemsControl ItemsSource="{Binding ButtonExtensions}">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal">
<StackPanel.Resources>
<Style TargetType="{x:Type Button}">
<Setter Property="Style">
<Setter.Value>
<MultiBinding Converter="{StaticResource StyleConverter}">
<MultiBinding.Bindings>
<Binding RelativeSource="{RelativeSource Self}" />
<Binding Source="{StaticResource StyleStackPanelButton}" />
</MultiBinding.Bindings>
</MultiBinding>
</Setter.Value>
</Setter>
</Style>
</StackPanel.Resources>
</StackPanel>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
</ItemsControl>
...

这导致了相同的错误：

ArgumentException：不允许Style对象影响其应用对象的Style属性。

---

是否有其他方法将lcoal样式资源绑定到Stackpanel ItemSource中项目的Setter属性？

Answer 1

由于将按钮直接添加到ItemsSource集合，因此将按钮样式分配给ItemsControl:的ItemContainerStyle属性就足够了

<ItemsControl ItemsSource="{Binding MyButtons}"
ItemContainerStyle="{StaticResource StyleStackPanelButton}">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal"/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
</ItemsControl>

---

或者，在StackPanel资源：中声明一个默认的按钮样式(不带x:Key(

<ItemsControl ItemsSource="{Binding MyButtons}">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal">
<StackPanel.Resources>
<Style TargetType="Button"
BasedOn="{StaticResource StyleStackPanelButton}"/>
</StackPanel.Resources>
</StackPanel>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
</ItemsControl>