来自复选框的 WPF 控制 TabItem 可见性 [英] WPF Control TabItem visibility from a checkbox

问题描述

我看了:使用 DependencyProperty 的可见性绑定

和http://msdn.microsoft.com/en-us/library/system.windows.controls.booleantovisibilityconverter.aspxhttp://www.vistax64.com/avalon/240-no-checkbox-checkedchanged.htmlhttp://geekswithblogs.net/thibbard/archive/2007/12/10/wpf---showhide-element-based-on-checkbox.checked.aspx

我有一些标签，我想通过复选框控制它们的可见性即

I have some tabs I want to control their visibility from a checkbox i.e.

        <TabItem Header="Preferences" Name="tabItem4"></TabItem>

理想情况下我会这样做

        <TabItem Header="Preferences" Name="tabItem4">
                <DataTrigger Binding="{Binding ElementName=myCheckBox, Path=IsChecked}" Value="True">
                    <Setter Property="Visibility" Value="True" />
                </DataTrigger>

         </TabItem>

或一些类似但不正确的语法.什么是最简单/正确的语法?

or some such but that is not correct syntax. What is easiest/correct syntax?

推荐答案

您可以使用内置的 BooleanToVisibilityConverter.这是一个工作示例:

You can use the built-in BooleanToVisibilityConverter. Here's a working sample:

<Window x:Class="WpfApplication16.MainWindow"
            xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
            xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
            xmlns:my="clr-namespace:WpfApplication16"
            Title="MainWindow" Height="350" Width="525">
    <Window.Resources>
        <BooleanToVisibilityConverter x:Key="b2v" />
    </Window.Resources>

    <StackPanel>
        <CheckBox x:Name="chk" Content="Show There" />
        <TabControl>
            <TabItem Header="Hello" />
            <TabItem Header="There" Visibility="{Binding IsChecked,ElementName=chk,Converter={StaticResource b2v}}" />
            <TabItem Header="World" />
        </TabControl>
    </StackPanel>
</Window>

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