更新的值未反映在WPF的UI中

我正在尝试在ListView中填充和导航面板DynamicCali

<ListView Background="Transparent" HorizontalAlignment="Center" x:Name="viewItemControl" ItemsSource="{Binding Views}">
        <ListView.ItemsPanel>
            <ItemsPanelTemplate>
                <StackPanel/>
            </ItemsPanelTemplate>
        </ListView.ItemsPanel>
        <ListView.ItemTemplate>
            <DataTemplate>
                <Button Style="{StaticResource PluginViewButton}" 
                        Command="{Binding ElementName=viewItemControl,Path=DataContext.NavigateCommand}" 
                        CommandParameter="{Binding ViewName}" 
                        BorderThickness="{Binding Path = ViewObj.DataContext.IsSelected, Converter={StaticResource BoolToThicknessConverter},Mode=OneWay}">
                    <Button.Content>
                        <Grid Background="White">
                            <Grid.RowDefinitions>
                                <RowDefinition/>
                                <RowDefinition Height="15"/>
                            </Grid.RowDefinitions>
                            <Image Grid.Row="0" Source="{Binding Icon, Mode=OneTime}"></Image>
                            <TextBlock Grid.Row="1" Text="{Binding DisplayableName}" HorizontalAlignment="Center"/>
                        </Grid>
                    </Button.Content>
                </Button>
            </DataTemplate>
        </ListView.ItemTemplate>
        <ListView.ItemContainerStyle>
            <Style TargetType="ListViewItem">
                <Setter Property="Focusable" Value="false"/>
            </Style>
        </ListView.ItemContainerStyle>
    </ListView>

接口IPluggableView由我的所有用户控件实现，这些控件都是视图

我的viewmodel基类有一个属性IsSelected。 Viewmodel类正在实现VigationAware接口中的prism功能，因此在OnNavigatedTo和OnNavigatedFrom函数中，我正在更新IsSelected属性

我希望我的按钮边框在其视图被选中时更厚，当我导航到另一个视图时，它应该返回默认值，如下所示

所以我编写了BoolToThickness转换器，它根据值返回0.5或2

我面临的问题是，它在加载时只更新一次，然后再也不会更新，尽管我更新了IsSelected属性

我有点确定UI没有得到RaisePropertyChanged事件。但我知道如何解决这个问题。

---

如果这是一个设计问题，请帮助我纠正。

您应该定义

ItemContainerStyle

并直接在

IsSelected

上触发。只有在要修改或删除默认高亮显示行为时，才需要覆盖

控制模板

：

<ListView.ItemContainerStyle>
  <Style TargetType="ListViewItem">
    <Setter Property="BorderThickness"
            Value="1" />
    <Setter Property="BorderBrush"
            Value="Black" />

    <!-- Optional -->
    <Setter Property="Template">
      <Setter.Value>
        <ControlTemplate TargetType="ListViewItem">
          <Border Background="{TemplateBinding Background}" 
                  BorderBrush="{TemplateBinding BorderBrush}"
                  BorderThickness="{TemplateBinding BorderThickness}" 
                  Padding="{TemplateBinding Padding}">
            <ContentPresenter />
          </Border>
        </ControlTemplate>
      </Setter.Value>
    </Setter>

    <!-- Change border thickness on item is selected -->
    <Style.Triggers>
      <Trigger Property="IsSelected" Value="True">
        <Setter Property="BorderThickness" Value="3" />
      </Trigger>
    </Style.Triggers>
  </Style>
</ListView.ItemContainerStyle>

<ListView.ItemContainerStyle>
  <Style TargetType="ListViewItem">
    <Setter Property="BorderThickness"
            Value="1" />
    <Setter Property="BorderBrush"
            Value="Black" />

    <!-- Optional -->
    <Setter Property="Template">
      <Setter.Value>
        <ControlTemplate TargetType="ListViewItem">
          <Border Background="{TemplateBinding Background}" 
                  BorderBrush="{TemplateBinding BorderBrush}"
                  BorderThickness="{TemplateBinding BorderThickness}" 
                  Padding="{TemplateBinding Padding}">
            <ContentPresenter />
          </Border>
        </ControlTemplate>
      </Setter.Value>
    </Setter>

    <!-- Change border thickness on item is selected -->
    <Style.Triggers>
      <Trigger Property="IsSelected" Value="True">
        <Setter Property="BorderThickness" Value="3" />
      </Trigger>
    </Style.Triggers>
  </Style>
</ListView.ItemContainerStyle>

<Button BorderThickness="{Binding RelativeSource="{RelativeSource FindAncestor, AncestorType=ListViewItem}, Path=IsSelected, Converter={StaticResource BoolToThicknessConverter}}">