winui3 Treeview 控件：如何在 treeview 中的项目的 hover 上显示工具提示

Question

Can someone please help me to know how I can add tooltip for Treeview control on hover?

Treeview control

Answer 1

You just need to bind it or set directly to ToolTipService.ToolTip .

<TreeView
    Grid.Column="0"
    ItemsSource="{x:Bind ViewModel.Items, Mode=OneWay}">
    <TreeView.ItemTemplate>
        <DataTemplate x:DataType="local:Item">
            <TreeViewItem
                Content="{x:Bind Name}"
                ItemsSource="{x:Bind Children}"
                ToolTipService.ToolTip="{x:Bind Tip, Mode=OneWay}" />
        </DataTemplate>
    </TreeView.ItemTemplate>
</TreeView>