StackPanel 折叠并在按钮单击时可见 [英] StackPanel Collapsed and Visible on Button Click
本文介绍了StackPanel 折叠并在按钮单击时可见的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我试图在单击按钮时显示一个折叠的堆栈面板,但我遇到了问题,所以我尝试扭转我的想法,我能够折叠一个可见的堆栈面板.但不幸的是,我无法实现我想要的行为,在单击按钮时显示折叠的堆栈面板.到代码:D
I am trying to show one collapsed stackpanel on button click, but I'm having problems so I tried reverse my thoughts and I was able to collapse an visible stackpanel. But unfortunately I was unable to implement the behavior I want, show an collapsed stack panel on button click. To the code :D
XAML
<Button x:Name="sentButton" Content="Add Friend" Style="{DynamicResource FlatButtonStyle}" Margin="493,0,0,0" HorizontalAlignment="Left" Width="106"/>
<StackPanel Style="{DynamicResource stackCollapsed}" Visibility="Collapsed">
<Label Content="Invite Friends" FontWeight="Bold" Margin="0,0,477,0" Height="32" />
<StackPanel Orientation="Horizontal" Margin="26,0,0,0">
<Label Content="Enter your friend's email" Width="222" Height="25" />
<TextBox Text="{Binding Email, UpdateSourceTrigger=PropertyChanged}" Style="{DynamicResource MyTextBox}" x:Name="textBoxEmail" Width="298"/>
<Button x:Name="button1" Content="Send" Command="{Binding AddCommand}" Width="77" Style="{DynamicResource FlatButtonStyle}" Margin="20,0,0,0"/>
</StackPanel>
</StackPanel>
样式
<!-- Style Collapsed-->
<Style x:Key="stackCollapsed" TargetType="StackPanel">
<Style.Triggers>
<DataTrigger Binding="{Binding ElementName=sentButton,Path=IsPressed}" Value="true">
<Setter Property="StackPanel.Visibility" Value="Visible"/>
</DataTrigger>
</Style.Triggers>
</Style>
推荐答案
代替 Button
使用 ToggleButton
并将 StackPanel.Visibility
绑定到 ToggleButton.IsChecked
属性通过 BooleanToVisibilityConverter
转换器
Instead of Button
use ToggleButton
and bind StackPanel.Visibility
to ToggleButton.IsChecked
property via BooleanToVisibilityConverter
converter
<ToggleButton x:Name="sentButton" Content="Add Friend" Margin="493,0,0,0" HorizontalAlignment="Left" Width="106"/>
<StackPanel Visibility="{Binding ElementName=sentButton, Path=IsChecked, Converter={StaticResource BooleanToVisibilityConverter}}">
<Label Content="Invite Friends" FontWeight="Bold" Margin="0,0,477,0" Height="32" />
<StackPanel Orientation="Horizontal" Margin="26,0,0,0">
<Label Content="Enter your friend's email" Width="222" Height="25" />
<TextBox Text="{Binding Email, UpdateSourceTrigger=PropertyChanged}" x:Name="textBoxEmail" Width="298"/>
<Button x:Name="button1" Content="Send" Command="{Binding AddCommand}" Width="77" Margin="20,0,0,0"/>
</StackPanel>
</StackPanel>
其中转换器定义如下
<Window.Resources>
<ResourceDictionary>
<BooleanToVisibilityConverter x:Key="BooleanToVisibilityConverter"/>
</ResourceDictionary>
</Window.Resources>
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