更新时间:2022-09-16 15:47:53
1、不同于Windows Forms,当前WPF版本没有提供一个直接的方法可以把TreeView控件所有的节点都展开。一般来说,在WPF中有两种方法可以实现这个功能。第一种方法就像下面例子一样使用样式展开所有节点:
<Window xmlns= "http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x= "http://schemas.microsoft.com/winfx/2006/xaml"
x:Class= "ControlTest2.TreeViewTest" Width= "500" >
<Window.Resources>
<XmlDataProvider x:Key= "treeData" XPath= "*" >
<x:XData>
<Items Name= "Items" xmlns= "" >
<Item1/>
<Item2>
<Item22/>
<Item12/>
<Item13>
<Item131/>
<Item131/>
</Item13>
</Item2>
</Items>
</x:XData>
</XmlDataProvider>
<HierarchicalDataTemplate ItemsSource= "{Binding XPath=child::*}" x:Key= "template" >
<TextBlock Name= "textBlock" Text= "{Binding Name}" />
</HierarchicalDataTemplate>
</Window.Resources>
<WrapPanel>
<TreeView ItemTemplate= "{StaticResource template}"
ItemsSource= "{Binding Source={StaticResource treeData}}" >
<TreeView.ItemContainerStyle>
<!--Using style setter to set the TreeViewItem.IsExpanded property to true , this will be applied
to all TreeViweItems when they are generated-->
<Style TargetType= "{x:Type TreeViewItem}" >
<Setter Property= "IsExpanded" Value= "True" />
</Style>
</TreeView.ItemContainerStyle>
</TreeView>
</WrapPanel>
</Window> |
参考:http://social.msdn.microsoft.com/Forums/zh-CN/wpfzhchs/thread/857fdaa9-5c67-4e0a-a1fd-037f72577c76
本文转自Work Hard Work Smart博客园博客,原文链接:http://www.cnblogs.com/linlf03/archive/2011/11/14/2248326.html,如需转载请自行联系原作者