我试图在WPF的TreeView中为子级添加工具提示。但是，它甚至出现在XAML中，我也无法获得在树状视图子级中呈现的工具提示。有人可以告诉我如何解决这个问题吗？
<Window x:Class="Client_Invoice_Auditor.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:Client_Invoice_Auditor"
xmlns:self="clr-namespace:Client_Invoice_Auditor.CoreClientAR"
mc:Ignorable="d"
Title="Client Invoice Auditor" Height="450" Width="1000">
<Window.Resources>
<self:SPConverter x:Key="SPConverter"/>
<self:ErrorExpandConverter x:Key="ErrorExpandConverter"/>
<self:AssignRowConverter x:Key="AssignRowConverter"/>
<self:IssueIconConverter x:Key="IssueIconConverter"/>
</Window.Resources>
<Grid>
<Grid.ColumnDeitions>
</Grid.ColumnDeitions>
<Grid.RowDeitions>
<RowDeition Height="20*"/>
<RowDeition Height="80*"/>
</Grid.RowDeitions>
<Grid Grid.Row="0" Grid.Column="0">
<StackPanel Orientation="Vertical">
<DockPanel VerticalAlignment="Top" Height="20" Panel.ZIndex="1">
<Menu Name="fileMenu" Width="Auto" DockPanel.Dock="Top">
<MenuItem Header="File">
<MenuItem Header="Open Account File" Click="menuOpenFile_Click"/>
<MenuItem Header="Exit" Click="menuExit_Click"/>
</MenuItem>
<MenuItem Header="Options">
<!--<MenuItem Header="Update" Click="update_Click"/>-->
<MenuItem Header="About" Click="about_Click"/>
</MenuItem>
</Menu>
</DockPanel>
<WrapPanel Orientation="Horizontal" HorizontalAlignment="Center" Height="Auto">
<StackPanel Width="Auto" Orientation="Horizontal" HorizontalAlignment="Center">
<Border BorderBrush="MediumAquamarine" BorderThickness="2">
<Label Name="AccountNumber"/>
</Border>
<Border BorderBrush="MediumAquamarine" BorderThickness="2">
<Label Name="AcctDesc"/>
</Border>
<Border BorderBrush="MediumAquamarine" BorderThickness="2">
<Label Name="Organization"/>
</Border>
</StackPanel>
</WrapPanel>
<StackPanel Orientation="Horizontal" HorizontalAlignment="Left">
<Label Margin="20,10,0,0" Content="Activity Date Time" />
<Label Margin="60,10,0,0" Content="Beginning Balance" />
<Label Margin="10,10,0,0" Content="Charge Amount" />
<Label Margin="30,10,0,0" Content="Adjustments" />
<Label Margin="40,10,0,0" Content="Payments" />
<Label Margin="60,10,0,0" Content="End Balance" />
<Label Margin="50,10,0,0" Content="Issues" />
</StackPanel>
</StackPanel>
</Grid>
<Grid Grid.Row="1" Grid.Column="0">
<Grid Name="IssuesGrid">
<Grid.ColumnDeitions>
<!--<ColumnDeition Width="80*"/>-->
<!--<ColumnDeition Width="20*"/>-->
</Grid.ColumnDeitions>
<TreeView Name="View">
<!--<Style TargetType="{x:Type TreeViewItem}">
<Setter Property="IsExpanded"
Value="{Binding Class, Converter={StaticResource ErrorExpandConverter}}" />
</Style>-->
<TreeView.ItemContainerStyle>
<Style TargetType="{x:Type TreeViewItem}">
<Setter Property="IsExpanded"
Value="{Binding Dummies, Converter={StaticResource ErrorExpandConverter}}" />
</Style>
</TreeView.ItemContainerStyle>
<TreeView.ItemTemplate>
<HierarchicalDataTemplate DataType="{x:Type self:dailyAccountBalance}" ItemsSource="{Binding Dummies}">
<StackPanel Orientation="Horizontal" HorizontalAlignment="Left" IsEnabled="False" Grid.Row="{Binding RowIndex}" ToolTip="This info">
<TextBlock Width="150" Text="{Binding ActivityDate}" />
<TextBlock Width="100" Margin="20,0,0,0" Text="{Binding BegBalance}"/>
<TextBlock Width="100" Margin="20,0,0,0" Text="{Binding ChrgAmount}" />
<TextBlock Width="100" Margin="20,0,0,0" Text="{Binding AdjAmount}" />
<TextBlock Width="100" Margin="20,0,0,0" Text="{Binding PmtAmount}" />
<TextBlock Width="100" Margin="20,0,0,0" Text="{Binding EndBalance}" ToolTipService.IsEnabled="True" ToolTipService.ToolTip="This balance thing" ToolTip="This balance"/>
<ContentControl HorizontalAlignment="Left" Margin="20,0,0,0" Width="100" ToolTip="This">
<ContentControl.Content>
<MultiBinding Converter="{StaticResource IssueIconConverter}">
<Binding Path="RowIndex"/>
<Binding Path="Errors"/>
</MultiBinding>
</ContentControl.Content>
<!--<TextBlock Text="Test"/>-->
</ContentControl>
</StackPanel>
<HierarchicalDataTemplate.ItemTemplate>
<DataTemplate DataType="{x:Type self:DummyItem}">
<StackPanel Orientation="Horizontal" HorizontalAlignment="Left">
<!--<TextBlock Text="{Binding Text}" />-->
<DataGrid ItemsSource="{Binding ChargeActivities}" AutoGenerateColumns="False">
<DataGrid.Style>
<Style TargetType="{x:Type DataGrid}">
<Style.Triggers>
<DataTrigger Binding="{Binding Path=Items.Count,
RelativeSource={RelativeSource Self}}" Value="0">
<Setter Property="Visibility" Value="Collapsed" />
</DataTrigger>
</Style.Triggers>
</Style>
</DataGrid.Style>
<DataGrid.Columns>
<DataGridTextColumn x:Name="ChrgID" Header=" Charge" Binding="{Binding ChargeID}" />
<DataGridTextColumn x:Name="ChrgType" Header="Charge Type" Binding="{Binding ChargeType}">
<DataGridTextColumn.ElementStyle>
<Style TargetType="{x:Type TextBlock}">
<Style.Triggers>
<Trigger Property="Text" Value="CR">
<Setter Property="Foreground" Value="Red"/>
</Trigger>
</Style.Triggers>
</Style>
</DataGridTextColumn.ElementStyle>
</DataGridTextColumn>
<DataGridTextColumn x:Name="ChrgAmt" Header="Amount" Binding="{Binding ChargeAmount}">
<DataGridTextColumn.ElementStyle>
<Style TargetType="{x:Type TextBlock}">
<Style.Triggers>
<DataTrigger Binding="{Binding ChargeType}" Value="CR">
<Setter Property="Foreground" Value="Red"/>
</DataTrigger>
</Style.Triggers>
</Style>
</DataGridTextColumn.ElementStyle>
</DataGridTextColumn>
<DataGridTextColumn x:Name="" Header="" Binding="{Binding Stuff}" />
<DataGridTextColumn x:Name="Class" Header=" Class" Binding="{Binding Class}">
<DataGridTextColumn.ElementStyle>
<Style TargetType="{x:Type TextBlock}">
<Setter Property="Foreground" Value="{Binding Class, Converter={StaticResource SPConverter}}"/>
</Style>
</DataGridTextColumn.ElementStyle>
</DataGridTextColumn>
</DataGrid.Columns>
</DataGrid>
</StackPanel>
</DataTemplate>
</HierarchicalDataTemplate.ItemTemplate>
</HierarchicalDataTemplate>
<!--<TreeViewItem x:Key="Test">
<TextBlock Text="Me gusta"></TextBlock>
</TreeViewItem>-->
</TreeView.ItemTemplate>
</TreeView>
</Grid>
</Grid>
</Grid>
</Window>
任何获得工具提示以在树状视图子级中呈现的建议都将受到赞赏。在此先感谢一吨。
答案 0 :(得分：0)
您没有在模板内部设置元素的tooltip属性，而是在TreeViewItem本身上进行设置。
这是一个非常简化的示例：
<TreeView>
<TreeViewItem Header="Item #1" DataContext="Test1" />
<TreeViewItem Header="Item #2" DataContext="Test2" />
<TreeView.Resources>
<Style TargetType="{x:Type TreeViewItem}">
<Style.Setters>
<Setter Property="ToolTip" Value="{Binding}" />
</Style.Setters>
</Style>
</TreeView.Resources>
</TreeView>
在这里，我必须手动设置DataContext并对其进行硬编码，以使该示例正常工作，因为仅使用Header属性没有设置它，但是在现实世界中，您将受到数据绑定的约束，因此将对其进行设置。