在 WPF TabControl 中隐藏 Tab 标头
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Hide Tab headers in WPF TabControl
提问by Andrey Shchekin
What is the best way to hide Tab headers when there is only a single visible Tab?
当只有一个可见的 Tab 时，隐藏 Tab 标题的最佳方法是什么？
I want to hide TabControl chrome completely, while leaving the content of the Tab visible.
我想完全隐藏 TabControl 镶边，同时让 Tab 的内容可见。
回答by Robert Macnee
You can use a Style applied to TabItem with a DataTrigger that will collapse it if the parent TabControl has only one item:
您可以将应用于 TabItem 的 Style 与 DataTrigger 一起使用，如果父 TabControl 只有一项，它将折叠它：
<Grid xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:sys="clr-namespace:System;assembly=mscorlib"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<Grid.Resources>
<x:Array x:Key="tabData" Type="{x:Type sys:String}">
<sys:String>do</sys:String>
<sys:String>re</sys:String>
<sys:String>mi</sys:String>
</x:Array>
</Grid.Resources>
<TabControl ItemsSource="{StaticResource tabData}">
<TabControl.ItemContainerStyle>
<Style TargetType="{x:Type TabItem}">
<Style.Triggers>
<DataTrigger Binding="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type TabControl}}, Path=Items.Count}" Value="1">
<Setter Property="Visibility" Value="Collapsed"/>
</DataTrigger>
</Style.Triggers>
</Style>
</TabControl.ItemContainerStyle>
</TabControl>
</Grid>
If you want to get rid of the TabControl completely if there is only one item, that logic should probably be at a higher level.
如果您想在只有一项的情况下完全摆脱 TabControl，那么该逻辑可能应该处于更高的级别。
回答by oo_dev
And if you have to do it in code behind....
如果你必须在后面的代码中做到这一点......
foreach (var item in tabControl.Items)
(item as TabItem).Visibility = tabControl.Items.Count > 1 ? Visibility.Visible : Visibility.Collapsed;
