DataTrigger 当条件为 false 时设置默认值

发布于 2024-10-11 21:05:26 字数 784 浏览 7 评论 0原文

这是我的 XAML：

<Ellipse Height="100" Width="100" Margin="35,112,0,0" Name="ellipse1" Fill="Red">
        <Ellipse.Style>
            <Style TargetType="Ellipse">
                <Style.Triggers>
                    <DataTrigger Binding="{Binding ElementName=checkBox1, Path=IsChecked}" Value="true">
                        <Setter Property="Ellipse.Visibility" Value="Collapsed"></Setter>
                    </DataTrigger>
                </Style.Triggers>
            </Style>
        </Ellipse.Style>
    </Ellipse>
    <CheckBox Content="CheckBox" Height="16" Margin="42,79,168,166" Name="checkBox1" />

当选中该复选框时，椭圆当然会消失，但是当未选中它时，它会再次出现，但我不知道为什么。这种行为正常吗？为什么会发生这种情况？

原文

So here is my XAML:

<Ellipse Height="100" Width="100" Margin="35,112,0,0" Name="ellipse1" Fill="Red">
        <Ellipse.Style>
            <Style TargetType="Ellipse">
                <Style.Triggers>
                    <DataTrigger Binding="{Binding ElementName=checkBox1, Path=IsChecked}" Value="true">
                        <Setter Property="Ellipse.Visibility" Value="Collapsed"></Setter>
                    </DataTrigger>
                </Style.Triggers>
            </Style>
        </Ellipse.Style>
    </Ellipse>
    <CheckBox Content="CheckBox" Height="16" Margin="42,79,168,166" Name="checkBox1" />

When the checkbox is checked, of course the ellipse disappears but when it's unchecked, it appears again, but i don't know why. This behavior is normal? Why this is happening?

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