[英]Using a control style, how can you bind or trigger a change to ToolTip contents based on ToggleButton.IsChecked?
[英]How to use a trigger on ToggleButton.IsChecked or IsPressed correctly?
那是我的代碼:
<Window x:Class="WpfTests.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<Window.Resources>
<Thickness x:Key="tasksMargin">0,10,0,0</Thickness>
</Window.Resources>
<Grid>
<DockPanel HorizontalAlignment="Left">
<!--<Border Padding="15">-->
<GroupBox>
<GroupBox.Header>
Database Tasks
</GroupBox.Header>
<StackPanel Width="Auto" >
<StackPanel.Resources>
<Style TargetType="RadioButton">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="RadioButton">
<ToggleButton IsChecked="{Binding IsChecked, RelativeSource={RelativeSource TemplatedParent}, Mode=TwoWay}"
Content="{Binding Content, RelativeSource={RelativeSource TemplatedParent}, Mode=TwoWay}"
BorderThickness="2" BorderBrush="Yellow" Background="White"/>
<ControlTemplate.Triggers>
<Trigger Property="ToggleButton.IsChecked" Value="True">
<Setter Property="Content" Value="different txt" />
</Trigger>
<Trigger Property="ToggleButton.IsPressed" Value="True">
<Setter Property="Content" Value="different text" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
<Setter Property="Margin" Value="5">
</Setter>
</Style>
</StackPanel.Resources>
<RadioButton GroupName="Group1" x:Name="button1">Option1</RadioButton>
<RadioButton GroupName="Group1" x:Uid="button2" x:Name="button2">button2</RadioButton>
<RadioButton GroupName="Group1" x:Uid="button3" x:Name="button3">button3</RadioButton>
</StackPanel>
</GroupBox>
</DockPanel>
</Grid>
但是,不會觸發 IsChecked 和 IsPressed 觸發器。 我如何正確聲明它們?
如果你給你的 ToggleButton 一個名字,然后在觸發器設置器中引用它,那么它應該可以工作。 所以,你的 ControlTemplate 看起來像......
<ControlTemplate TargetType="RadioButton">
<ToggleButton Name="toggleButton" IsChecked="{Binding IsChecked, RelativeSource={RelativeSource TemplatedParent}, Mode=TwoWay}"
Content="{Binding Content, RelativeSource={RelativeSource TemplatedParent}, Mode=TwoWay}"
BorderThickness="2" BorderBrush="Yellow" Background="White"/>
<ControlTemplate.Triggers>
<Trigger Property="ToggleButton.IsChecked" Value="True">
<Setter TargetName="toggleButton" Property="Content" Value="different txt" />
</Trigger>
<Trigger Property="ToggleButton.IsPressed" Value="True">
<Setter TargetName="toggleButton" Property="Content" Value="different text" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
不需要觸發器中的前綴類型,還將切換按鈕上的綁定更改為TemplateBindings
。
還有一些其他的解決方案可用,但對於這個問題。 請執行下列操作:
1) 提供您的切換名稱
<ToggleButton Name="tglBtn" IsChecked="{Binding IsChecked, RelativeSource={RelativeSource TemplatedParent}, Mode=TwoWay}"
Content="{Binding Content, RelativeSource={RelativeSource TemplatedParent}, Mode=TwoWay}"
BorderThickness="2" BorderBrush="Yellow" Background="White"/>
2) 在給定名稱的觸發器引用中
<Trigger SourceName="tglBtn" Property="IsChecked" Value="True">
<Setter TargetName="tglBtn" Property="Content" Value="different txt" />
</Trigger>
希望有幫助
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