wpf - 将 ToolbarTray 拉伸(stretch)为其行的宽度

Question

工具栏位于第一行。如何将工具栏拉伸(stretch)为整行的宽度？

<Grid.RowDefinitions>
        <RowDefinition Height="Auto" />
        <RowDefinition Height="Auto" />
        <RowDefinition Height="*" />
        <RowDefinition Height="Auto" />
        <RowDefinition Height="Auto" />
        <RowDefinition Height="*" />
    </Grid.RowDefinitions>

<ToolBarTray Background="Transparent">
        <!--Toolbar.xaml-->
        <ToolBar x:Name="mainToolbar" 
                 Style="{StaticResource mainToolBarStyle}"
                 ItemsSource="{Binding ToolbarItems}"
                 ItemTemplateSelector="{StaticResource toolBarItemTemplateSelector}"
                 DataContext="{Binding}">
        </ToolBar>
    </ToolBarTray>

Answer 1

我删除了 ToolbarTray并设置HorizontalContentAlignment="Stretch" .