问题描述
我有一个数据对象中的选项列表，我想制作一个等效的单选按钮列表，以允许用户选择其中一个且仅一个.功能类似于数据绑定组合框，但采用单选按钮格式.
I have a list of options in a data object, and I want to make the equivalent of a radio button list to allow the user to select one and only one of them. Functionality similar to a databound combo box, but in radio button format.
我真傻，我以为这是内置的，但没有.你是怎么做到的?
Silly me, I thought this would be built in, but no. How do you do it?
推荐答案
基本上，在查看了 google 的结果后，我从 一个 MSDN 讨论线程，其中 WPF 博士提供了一个答案，其中讨论了设置 ListBox 外观的样式对.但是，当列表框被禁用时，背景是一种令人讨厌的颜色，我一生都无法摆脱，直到我阅读 ListBox ControlTemplate 的 MSDN 示例，它显示了正在踢我的背景的秘密 Border 元素.
Basically, after reviewing the google results, I started with the info from an MSDN discussion thread where Dr. WPF provided an answer, which talks about styling a ListBox to look right. However, when the listbox is disabled, the background was an annoying color that I couldn't get rid of for the life of me, until I read the MSDN example of the ListBox ControlTemplate, which shows the secret Border element that was kicking my background butt.
所以，这里的最终答案是这种风格:
So, the final answer here was this style:
<Style x:Key="RadioButtonList" TargetType="{x:Type ListBox}">
<!-- ControlTemplate taken from MSDN http://msdn.microsoft.com/en-us/library/ms754242.aspx -->
<Setter Property="SnapsToDevicePixels" Value="true"/>
<Setter Property="OverridesDefaultStyle" Value="true"/>
<Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto"/>
<Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto"/>
<Setter Property="ScrollViewer.CanContentScroll" Value="true"/>
<Setter Property="MinWidth" Value="120"/>
<Setter Property="MinHeight" Value="95"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ListBox">
<Border Name="Border" Background="Transparent"
BorderBrush="Transparent"
BorderThickness="0"
CornerRadius="2">
<ScrollViewer Margin="0" Focusable="false">
<StackPanel Margin="2" IsItemsHost="True" />
</ScrollViewer>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsEnabled" Value="false">
<Setter TargetName="Border" Property="Background"
Value="Transparent" />
<Setter TargetName="Border" Property="BorderBrush"
Value="Transparent" />
</Trigger>
<Trigger Property="IsGrouping" Value="true">
<Setter Property="ScrollViewer.CanContentScroll" Value="false"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
<Setter Property="ItemContainerStyle">
<Setter.Value>
<Style TargetType="{x:Type ListBoxItem}" >
<Setter Property="Margin" Value="2" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ListBoxItem}">
<Border Name="theBorder" Background="Transparent">
<RadioButton Focusable="False" IsHitTestVisible="False"
IsChecked="{TemplateBinding IsSelected}">
<ContentPresenter />
</RadioButton>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Setter.Value>
</Setter>
</Style>
它为 ListBox 和 Items 提供了 ControlTemplate 和样式.它被这样使用:
Which provides a ControlTemplate for, and styles, the ListBox and the Items. And it gets used like this:
<ListBox Grid.Column="1" Grid.Row="0" x:Name="TurnChargeBasedOnSelector" Background="Transparent"
IsEnabled="{Binding Path=IsEditing}"
Style="{StaticResource RadioButtonList}"
ItemsSource="{Binding RelativeSource={RelativeSource AncestorType={x:Type local:MainForm}}, Path=DataContext.RampTurnsBasedOnList}"
DisplayMemberPath="Description" SelectedValuePath="RampTurnsBasedOnID"
SelectedValue="{Binding Path=RampTurnsBasedOnID, NotifyOnValidationError=True, UpdateSourceTrigger=PropertyChanged, ValidatesOnDataErrors=True, ValidatesOnExceptions=True}"/>
我花在 WPF 上的时间越多，我就越觉得它让琐碎的事情变得异常困难，变得异常困难的琐碎事情.享受.-斯科特
The more I spend time with WPF, the more I think it makes the trivial insanely difficult and the insanely difficult trivial. Enjoy. -Scott
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