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  • WPF 隐藏式控件

    没用Popup用的面板控件,全部代码使用xaml的触发器。

    代码:

    <Grid>
            <DockPanel>
                <StackPanel  Background="Red" Height="40" DockPanel.Dock="Top">
                    <Button x:Name="ShowPanelBtn"  Height="40"  Width="40"    HorizontalAlignment="Right">
                        <Button.Style>
                            <Style TargetType="Button">
                                <Style.Triggers>
                                    <Trigger Property="IsMouseOver" Value="true">
                                        <Setter Property="Content" Value=""/>
                                    </Trigger>
                                    <Trigger Property="IsMouseOver" Value="false">
                                        <Setter Property="Content" Value=""/>
                                    </Trigger>
                                </Style.Triggers>
                            </Style>
                        </Button.Style>
                    </Button>
                </StackPanel>
                <Grid Background="Green" x:Name="DownPanel"        Height="40"  VerticalAlignment="Top">
                    <Grid.Style>
                        <Style TargetType="Grid">
                            <Style.Triggers>
                                <DataTrigger Binding="{Binding ElementName=ShowPanelBtn,Path=IsMouseOver}" Value="true">
                                    <Setter Property="Visibility" Value="Visible"/>
                                </DataTrigger>
                                <DataTrigger Binding="{Binding ElementName=ShowPanelBtn,Path=IsMouseOver}" Value="false">
                                    <Setter Property="Visibility" Value="Collapsed"/>
                                </DataTrigger>
                            </Style.Triggers>
                        </Style>
                    </Grid.Style>
                </Grid>
            </DockPanel>
        </Grid>
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  • 原文地址:https://www.cnblogs.com/T-ARF/p/11755618.html
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