在TreeView添加节点后有时后会需要修改节点的名称，这时就需要重命名功能。这里简单实现了右键菜单重命名，效果如下：
1、在TreeView的ItemTemplate中，在原来展示节点名称的位置放一个TextBox，当选择重命名操作时展示，操作完成时隐藏，添加右键按下事件来确定所选择的节点位置。
<TreeView x:Name="treeView" Background="Transparent" MinHeight="280" Width="200"
ScrollViewer.HorizontalScrollBarVisibility="Hidden" ScrollViewer.VerticalScrollBarVisibility="Auto"
MouseDoubleClick="TreeView_MouseDoubleClick" MouseLeftButtonDown="TreeView_MouseLeftButtonDown" MouseRightButtonDown="TreeView_MouseRightButtonDown">
<TreeView.ItemTemplate>
<HierarchicalDataTemplate ItemsSource="{Binding Path=ChildNodes}">
<TextBlock x:Name="showName" HorizontalAlignment="Left" VerticalAlignment="Center" Margin="0,8,0,0" Height="26"
FontSize="{Binding Path=SetFontSize}" FontWeight="{Binding Path=SetFontWeight}" Text="{Binding Path=NodeName, Mode=TwoWay}" />
<TextBox x:Name="reName" HorizontalAlignment="Left" VerticalAlignment="Center" Margin="0,0,0,0" Height="22" Width="120"
FontSize="{Binding Path=SetFontSize}" FontWeight="{Binding Path=SetFontWeight}" Text="{Binding Path=Name, Mode=TwoWay}"
Visibility="Collapsed" LostFocus="ReName_LostFocus"/>
</Grid>
</HierarchicalDataTemplate>
</TreeView.ItemTemplate>
<TreeView.ContextMenu>
<ContextMenu x:Name="TreeViewMenu" Opened="TreeViewMenu_Opened">
<MenuItem x:Name="MenuReName" Header="重命名" Click="MenuReName_Click"/>
<MenuItem x:Name="MenuCopyItem" Header="复制" Command="Copy" InputGestureText="Ctrl+C"/>
<MenuItem x:Name="MenuPasteItem" Header="粘贴" Command="Paste" InputGestureText="Ctrl+V"/>
<MenuItem x:Name="MenuDeleteItem" Header="删除" Command="Delete" InputGestureText="Delete"/>
</ContextMenu>
</TreeView.ContextMenu>
<TreeView.CommandBindings>
<CommandBinding x:Name="Command_Copy" Command="Copy" CanExecute="Command_Copy_CanExecute" Executed="Command_Copy_Executed" />
<CommandBinding x:Name="Command_Paste" Command="Paste" CanExecute="Command_Paste_CanExecute" Executed="Command_Paste_Executed" />
<CommandBinding x:Name="Command_Delete" Command="Delete" CanExecute="Command_Delete_CanExecute" Executed="Command_Delete_Executed" />
</TreeView.CommandBindings>
<TreeView.InputBindings>
<KeyBinding Command="Copy" Key="C"/>
<KeyBinding Command="Paste" Key="V" />
<KeyBinding Command="Delete" Key="Delete" />
</TreeView.InputBindings>
</TreeView>
2、添加重命名相关全局变量
private TreeViewItem reNameTreeViewItem = null;//需要重命名的TreeViewItem
private TreeViewNode reNameSelectNode = null;//需要重命名的节点
private TextBox reNameTextBox = new TextBox();//需要重命名的TextBox
private bool isReName = false;//是否正在重命名节点，避免重命名未完成时拖拽节点
3、在右键菜单打开事件中加入重命名使能判断
private void TreeViewMenu_Opened(object sender, RoutedEventArgs e)
TreeViewNode selectNode = (TreeViewNode)treeView.SelectedItem;
((MenuItem)TreeViewMenu.Items[0]).IsEnabled = ((MenuItem)TreeViewMenu.Items[1]).IsEnabled = ((MenuItem)TreeViewMenu.Items[2]).IsEnabled = ((MenuItem)TreeViewMenu.Items[3]).IsEnabled = selectNode != null && !selectNode.IsNodeAdd && !selectNode.IsChildNodeAdd;
4、重命名相关事件逻辑
/// <summary>
/// 右键按下时赋值重命名节点数据
/// </summary>
private void TreeView_MouseRightButtonDown(object sender, MouseButtonEventArgs e)
TreeViewNode selectNode = (TreeViewNode)this.treeView.SelectedItem;
if (selectNode == null || selectNode.IsNodeAdd || selectNode.IsChildNodeAdd) return;
reNameTreeViewItem = GetParentObjectEx<TreeViewItem>(e.OriginalSource as DependencyObject) as TreeViewItem;
if (reNameTreeViewItem != null)
//使当前节点获得焦点
reNameTreeViewItem.Focus();
reNameSelectNode = selectNode;
/// <summary>
/// 获取父控件
/// </summary>
public TreeViewItem GetParentObjectEx<TreeViewItem>(DependencyObject obj) where TreeViewItem : FrameworkElement
DependencyObject parent = VisualTreeHelper.GetParent(obj);
while (parent != null)
if (parent is TreeViewItem)
return (TreeViewItem)parent;
parent = VisualTreeHelper.GetParent(parent);
return null;
/// <summary>
/// 右键菜单重命名
/// </summary>
private void MenuReName_Click(object sender, RoutedEventArgs e)
if (!reNameSelectNode.IsNodeAdd && !reNameSelectNode.IsChildNodeAdd)
if (reNameTreeViewItem != null && !((TreeViewNode)reNameTreeViewItem.DataContext).IsNodeAdd && !((TreeViewNode)reNameTreeViewItem.DataContext).IsChildNodeAdd)
//使当前节点获得焦点
reNameTreeViewItem.Focus();
//获取在TreeView.ItemTemplate中定义的TextBox控件
reNameTextBox = FindVisualChild<TextBox>(reNameTreeViewItem as DependencyObject);
//设置该TextBox的Visibility 属性为Visible
reNameTextBox.Visibility = Visibility.Visible;
reNameTextBox.SelectAll();
reNameTextBox.Focus();
isReName = true;
/// <summary>
/// 获取子控件
/// </summary>
private childItem FindVisualChild<childItem>(DependencyObject obj) where childItem : DependencyObject
for (int i = 0; i < VisualTreeHelper.GetChildrenCount(obj); i++)
DependencyObject child = VisualTreeHelper.GetChild(obj, i);
if (child != null && child is childItem)
return (childItem)child;
childItem childOfChild = FindVisualChild<childItem>(child);
if (childOfChild != null)
return childOfChild;
return null;
/// <summary>
/// 失去焦点后处理重命名逻辑
/// </summary>
private void ReName_LostFocus(object sender, RoutedEventArgs e)
isReName = false;
if (reNameTextBox == null) return;
if (reNameSelectNode == null || reNameSelectNode.IsNodeAdd || reNameSelectNode.IsChildNodeAdd)
reNameTextBox.Visibility = Visibility.Collapsed;
return;
//输入为空
if (reNameTextBox.Text.Trim() == "")
reNameTextBox.Text = reNameSelectNode.NodeName;
reNameTextBox.Visibility = Visibility.Collapsed;
return;
//最多6个字符
if (reNameTextBox.Text.Trim().Length > 6)
MessageBox.Show("最多六个字符");
reNameTextBox.Text = reNameSelectNode.NodeName;
reNameTextBox.Visibility = Visibility.Collapsed;
return;
//重名判断
TreeViewNode reNameParentNode = reNameSelectNode.ParentId == TopNodeId ? TopNode : TopNode.ChildNodes[reNameSelectNode.ParentId];
if (!CheckNodeNameAdd(reNameParentNode, reNameTextBox.Text.Trim()))
MessageBox.Show("与现有节点名称重名");
reNameTextBox.Text = reNameSelectNode.NodeName;
reNameTextBox.Visibility = Visibility.Collapsed;
return;
//重命名
reNameTextBox.Visibility = Visibility.Collapsed;
reNameSelectNode.NodeName = reNameTextBox.Text.Trim();
5、在拖拽移动事件TreeView_MouseMove中加入isReName的逻辑
/// <summary>
/// 拖拽移动
/// </summary>
private void TreeView_MouseMove(object sender, MouseEventArgs e)
if (e.LeftButton == MouseButtonState.Pressed && !isReName)
......
......
相关博文：
WPF一个完整的TreeView使用实例：（一）自定义控件样式+数据源绑定+动态添加父子节点
WPF一个完整的TreeView使用实例：（二）拖拽改变父子节点层级
WPF一个完整的TreeView使用实例：（三）右键菜单复制+粘贴+删除
WPF一个完整的TreeView使用实例：（四）节点重命名
if (nodeInfoList[i].nodeToolTipText == nodeChange)
treeView1.SelectedNode.EndEdit(true);
MessageBox.Show("名为“" + newName + "”的项已存在，请为您要添加的项提供一个唯一的名称")...
二、实现代码
首先为TreeView控件生成一个双击事件，选择闪电一样的按钮，找到 DoubleClick 这一项双击，会自动生成相应的事件，同样方法生成 MouseDown 事件和 AfterLabelEdit 事件。
private Point pi;//定义一个坐标变量
//editMenuTree为TreeView的Name
private void editMenuTree_MouseDown(object sender,
前言：
TreeView可以说是很常见的
一个控件，大部分软件不管是客户端还是网页都会有个左侧树型结构的控件，用于承载树形数据，下面就
TreeView在MVVM下的
使用写两篇小记，一篇是绑定后台数据，一篇是选中事件后获取路由
节点信息。
说明：有关MVVM的介绍，可以导航到这篇文章了解下
wpf mvvm小记
其中MVVM
使用prism框架，这样就不需要自己重新去实现MVVM的功能了，prism中都封装好了。
Prism的简单介绍可以看笔者之前的文章了解下。
一、目录结构
二、测试实现功能
WPF Window.RenderTransform 可以用于对窗口进行变换操作，例如旋转、缩放、平移等。具体使用实例可以参考以下代码：
<Window x:Class="WpfApp1.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<Button Content="Click Me" Width="100" Height="50" RenderTransformOrigin=".5,.5">
<Button.RenderTransform>
<RotateTransform Angle="45"/>
</Button.RenderTransform>
</Button>
</Grid>
</Window>
以上代码中，我们在按钮上应用了一个旋转变换，使其旋转了45度。通过 RenderTransformOrigin 属性可以指定变换的中心点。
