Mahapps TabControl，在使用ItemSource = {Binding ..}時無法將CloseButtonEnabled = true設置

Question

我正在使用MahApps TabControl。 如果我從xaml添加項目，則可以設置“ CloseButtonEnabled = true”，並且顯示“關閉”按鈕，當我嘗試綁定ItemSource時，不顯示關閉按鈕。 有什么想法，我該如何解決這個問題？

這是我的示例代碼：

<Window.Resources>
    <Style BasedOn="{StaticResource MetroTabItem}" TargetType="{x:Type Controls:MetroTabItem}">
        <Setter Property="Controls:ControlsHelper.HeaderFontSize" Value="15"/>
        <Setter Property="Foreground" Value="Red"/>
        <Setter Property="CloseButtonEnabled" Value="True"/>
    </Style>
</Window.Resources>

 <Controls:MetroTabControl ItemsSource="{Binding AvailableFiles}" SelectedIndex="{Binding SelectedIndex}"  Grid.Row="1" >           
        <Controls:MetroTabControl.ItemTemplate >
            <DataTemplate>
                <TextBlock Text="{Binding Title}" />
            </DataTemplate>
        </Controls:MetroTabControl.ItemTemplate>
 </Controls:MetroTabControl>

Answer 1

您可以嘗試以下方法：

<Window.Resources>
<Style x:Key="MyCustomTabItem" BasedOn="{StaticResource MetroTabItem}" TargetType="{x:Type Controls:MetroTabItem}">
    <Setter Property="Controls:ControlsHelper.HeaderFontSize" Value="15"/>
    <Setter Property="Foreground" Value="Red"/>
    <Setter Property="CloseButtonEnabled" Value="True"/>
</Style>
</Window.Resources>
<Controls:MetroTabControl ItemsSource="{Binding AvailableFiles}" ItemContainerStyle="{StaticResource MyCustomTabItem}" SelectedIndex="{Binding SelectedIndex}"  Grid.Row="1" >           
    <Controls:MetroTabControl.ItemTemplate >
        <DataTemplate>
            <TextBlock Text="{Binding Title}" />
        </DataTemplate>
    </Controls:MetroTabControl.ItemTemplate>
</Controls:MetroTabControl>

Answer 2

這里的問題是您覆蓋MetroTabItem的完整樣式。

如果您只想要其他更改，請執行此操作

<Window.Resources>
    <Style BasedOn="{StaticResource {x:Type Controls:MetroTabItem}}" TargetType="{x:Type Controls:MetroTabItem}">
        <Setter Property="Controls:ControlsHelper.HeaderFontSize" Value="15"/>
        <Setter Property="Foreground" Value="Red"/>
        <Setter Property="CloseButtonEnabled" Value="True"/>
    </Style>
</Window.Resources>

所述MetroTabItem在BasedOn="{StaticResource MetroTabItem}"是一個樣式，不類型。

希望有幫助！