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HandyControl/doc/source/handycontrol/extend_controls/gotoTop/index.md
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GotoTop 回到顶部

通过点击 GotoTop 可以让 ScrollView 或带有 ScrollView 的控件滚动到顶部位置.

public class GotoTop : Button

属性

属性 描述 默认值 备注
Target ScrollView 或带有 ScrollView 的控件
Animated 是否使用动画 true
AnimationTime 动画持续时间 0.2s
HidingHeight 当 ScrollView 滚动该高度后 GotoTop 会被隐藏 0
AutoHiding 是否自动隐藏 true

案例

<hc:SimplePanel Width="500" Height="400">
    <hc:ScrollViewer Name="ScrollViewerDemo" IsInertiaEnabled="True" Margin="0,10,0,0">
        <Border Height="2000" Margin="8,0">
            <Border.Background>
                <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                    <GradientStop Color="White" Offset="0"/>
                    <GradientStop Color="Black" Offset="1"/>
                </LinearGradientBrush>
            </Border.Background>
        </Border>
    </hc:ScrollViewer>
    <hc:GotoTop Animated="True" AutoHiding="True" AnimationTime="500" Target="{Binding ElementName=ScrollViewerDemo}" HorizontalAlignment="Right" VerticalAlignment="Bottom" Margin="0,0,20,20"/>
</hc:SimplePanel>

GotoTop