wpf 用扩展器替换 Treeview +-
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Replacing Treeview +- with Expander
提问by surpavan
I am trying to remove the node signs +- from tree view and replace them with Expander. Following is my Xaml:
我正在尝试从树视图中删除节点符号 +- 并将它们替换为 Expander。以下是我的 Xaml：
<TreeView.Resources>
<HierarchicalDataTemplate ItemsSource="{Binding Disks}" DataType="{x:Type local1:GenSet}">
<Expander Header="{Binding Genre}" x:Name="exp" IsExpanded="False" >
</Expander>
<HierarchicalDataTemplate.Triggers>
<DataTrigger Binding="{Binding RelativeSource={RelativeSource AncestorType=TreeViewItem}, Path=IsExpanded}" Value="True">
<Setter TargetName="exp" Property="IsExpanded" Value="True"/>
</DataTrigger>
<DataTrigger Binding="{Binding RelativeSource={RelativeSource AncestorType=TreeViewItem}, Path=IsExpanded}" Value="False">
<Setter TargetName="exp" Property="IsExpanded" Value="False"/>
</DataTrigger>
</HierarchicalDataTemplate.Triggers>
<!--<TextBlock Text="{Binding Genre}"/>-->
</HierarchicalDataTemplate>
<DataTemplate DataType="{x:Type local1:DiskPrime}">
<TextBlock Text="{Binding Namee}"/>
</DataTemplate>
</TreeView.Resources>
</TreeView>
I need to remove the +- icons and get the expander to work. Could you please advice how to get this done. Thank you.
我需要删除 +- 图标并使扩展器工作。你能否请教如何完成这项工作。谢谢你。
回答by 123 456 789 0
Play with this and modify it to satisfy your needs.
玩这个并修改它以满足您的需求。
<TreeView>
<TreeView.Resources>
<Style TargetType="TreeViewItem">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate>
<Expander Header="{Binding RelativeSource={RelativeSource AncestorType=TreeViewItem}, Path=Header}">
<ContentPresenter Content="{Binding RelativeSource={RelativeSource AncestorType=TreeViewItem}, Path=Items[0]}"/>
</Expander>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</TreeView.Resources>
<TreeViewItem Header="Test 1">
<TreeViewItem Header="Child 1"><TextBox Text="Hello"></TextBox></TreeViewItem>
</TreeViewItem>
<TreeViewItem Header="Test 2"/>
<TreeViewItem Header="Test 3"/>
</TreeView>
回答by H.B.
In the ItemContainerStyleset a new Templatefor the TreeViewItems.
在ItemContainerStyle设置一个新Template的TreeViewItems.
