C# WPF TreeView 的节点如何重命名

Question

考虑重绘的话有点麻烦吧，简单的办法是弹出个窗口，给他输名称，输完后，把他输的文本，做为TreeNode 的header，这样
处理比较简单

Answer 1

修改treeview的模板，绑定到TextBox上。 <HierarchicalDataTemplate x:Key="DataTemplate" ItemsSource="{Binding ChildrenEntityTree}">
            <TextBlock Text="{Binding CurrentBaseEntity.Name}"></TextBlock>
            <HierarchicalDataTemplate.ItemTemplate>
                <HierarchicalDataTemplate ItemsSource="{Binding ChildrenEntityTree}">
                    <TextBlock Text="{Binding CurrentBaseEntity.Name}"></TextBlock>
                </HierarchicalDataTemplate>
            </HierarchicalDataTemplate.ItemTemplate>
        </HierarchicalDataTemplate>把textBlock改成textBox，绑定方式改成双向绑定

Answer 2

你的绑定的数据实现了ObservableCollection接口没 或者INotifyPropertyChanged没 如果没有的话那就不能修改了实时刷新的。

Answer 3

 不是实时刷新的，这个treeview是每第一次打开的时候绑定的。
因为要修改这个目录 必须修改（数据库）和（文件所在位置的文件夹目录）

Answer 4

看不太懂，这个方法好像可行，就是不知道怎么用到我的这上面 <TreeView x:Name="myFolders" Margin="0,20,0,0" Width="auto" TreeViewItem.PreviewMouseRightButtonDown="TreeViewItem_PreviewMouseRightButtonDown"    TreeViewItem.Selected="TreeViewItem_Selected"  TreeViewItem.Expanded="mytreeview_Expanded" HorizontalAlignment="Left" VerticalAlignment="Top" Height="auto">
                <TreeView.Effect>
                    <DropShadowEffect ShadowDepth="1" Opacity="0.345"/>
                </TreeView.Effect>               
                <TreeView.ContextMenu>
                    <ContextMenu x:Name="menu" Width="50">
                        <MenuItem Header="下载" x:Name="download" MenuItem.Click="downloadMenuItem_Click" >                         
                        </MenuItem>
                        <MenuItem Header="同步到服务器" x:Name="upload" MenuItem.Click="uploadMenuItem_Click" >
                        </MenuItem>
                        <MenuItem Header="文件夹另存为..." x:Name="share" MenuItem.Click="shareMenuItem_Click" >
                        </MenuItem>
                        <MenuItem Header="新建文件夹"  MenuItem.Click="Createfolder_click" >
                        </MenuItem>
                         <MenuItem Header="添加文件" MenuItem.Click="dg_addnewfile_Click" >
                         </MenuItem>
                         <MenuItem Header="重命名"  MenuItem.Click="rename_Click" >
                        </MenuItem>                       
                        <MenuItem Header="删除"  MenuItem.Click="Delete_Click" >
                        </MenuItem>
                    </ContextMenu>
                </TreeView.ContextMenu>
                <TreeView.ItemContainerStyle>
                    <Style TargetType="{x:Type TreeViewItem}">
                        <EventSetter Event="TreeViewItem.PreviewMouseRightButtonDown" Handler="TreeViewItem_PreviewMouseRightButtonDown"/>
                    </Style>
                </TreeView.ItemContainerStyle>
            </TreeView>   
private void TreeViewRootLoad()//加载根目录
        {            
            string loginTemp = "username=" + Global.UserName;
            DataTable dt = HtmlHelper.GetSOAPResult(loginTemp, "GetFolderFootList");
            myFolders.Items.Clear();
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                TreeViewItem tvi = new TreeViewItem();
                tvi.Tag = dt.Rows[i]["FolderId"].ToString();
                tvi.Header = dt.Rows[i]["FolderName"].ToString();
                tvi.Items.Add("*");
                if (i == dt.Rows.Count - 1)
                {
                    fid = tvi.Tag.ToString();
                    BandFile();
                }
                myFolders.Items.Add(tvi);
            }
        }
 private void tv_ChildLoad(TreeViewItem tvi)//展开子目录
        {
            string loginTemp = "Folderid=" + tvi.Tag.ToString();
            DataTable dt = HtmlHelper.GetSOAPResult(loginTemp, "GetFolderChildList");
            if (!tvi.Items.Contains("*"))
            {
                return;
            }
            tvi.Items.Clear();
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                TreeViewItem tvis = new TreeViewItem();
                tvis.Tag = dt.Rows[i]["FolderId"].ToString();
                tvis.Header = dt.Rows[i]["FolderName"].ToString();
                tvis.Items.Add("*");
                tvi.Items.Add(tvis);               
            }
        }

Answer 5

看不太懂，这个方法好像可行，就是不知道怎么用到我的这上面 <TreeView x:Name="myFolders" Margin="0,20,0,0" Width="auto" TreeViewItem.PreviewMouseRightButtonDown="TreeViewItem_PreviewMouseRightButtonDown"    TreeViewItem.Selected="TreeViewItem_Selected"  TreeViewItem.Expanded="mytreeview_Expanded" HorizontalAlignment="Left" VerticalAlignment="Top" Height="auto">
                <TreeView.Effect>
                    <DropShadowEffect ShadowDepth="1" Opacity="0.345"/>
                </TreeView.Effect>               
                <TreeView.ContextMenu>
                    <ContextMenu x:Name="menu" Width="50">
                        <MenuItem Header="下载" x:Name="download" MenuItem.Click="downloadMenuItem_Click" >                         
                        </MenuItem>
                        <MenuItem Header="同步到服务器" x:Name="upload" MenuItem.Click="uploadMenuItem_Click" >
                        </MenuItem>
                        <MenuItem Header="文件夹另存为..." x:Name="share" MenuItem.Click="shareMenuItem_Click" >
                        </MenuItem>
                        <MenuItem Header="新建文件夹"  MenuItem.Click="Createfolder_click" >
                        </MenuItem>
                         <MenuItem Header="添加文件" MenuItem.Click="dg_addnewfile_Click" >
                         </MenuItem>
                         <MenuItem Header="重命名"  MenuItem.Click="rename_Click" >
                        </MenuItem>                       
                        <MenuItem Header="删除"  MenuItem.Click="Delete_Click" >
                        </MenuItem>
                    </ContextMenu>
                </TreeView.ContextMenu>
                <TreeView.ItemContainerStyle>
                    <Style TargetType="{x:Type TreeViewItem}">
                        <EventSetter Event="TreeViewItem.PreviewMouseRightButtonDown" Handler="TreeViewItem_PreviewMouseRightButtonDown"/>
                    </Style>
                </TreeView.ItemContainerStyle>
            </TreeView>   
private void TreeViewRootLoad()//加载根目录
        {            
            string loginTemp = "username=" + Global.UserName;
            DataTable dt = HtmlHelper.GetSOAPResult(loginTemp, "GetFolderFootList");
            myFolders.Items.Clear();
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                TreeViewItem tvi = new TreeViewItem();
                tvi.Tag = dt.Rows[i]["FolderId"].ToString();
                tvi.Header = dt.Rows[i]["FolderName"].ToString();
                tvi.Items.Add("*");
                if (i == dt.Rows.Count - 1)
                {
                    fid = tvi.Tag.ToString();
                    BandFile();
                }
                myFolders.Items.Add(tvi);
            }
        }
 private void tv_ChildLoad(TreeViewItem tvi)//展开子目录
        {
            string loginTemp = "Folderid=" + tvi.Tag.ToString();
            DataTable dt = HtmlHelper.GetSOAPResult(loginTemp, "GetFolderChildList");
            if (!tvi.Items.Contains("*"))
            {
                return;
            }
            tvi.Items.Clear();
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                TreeViewItem tvis = new TreeViewItem();
                tvis.Tag = dt.Rows[i]["FolderId"].ToString();
                tvis.Header = dt.Rows[i]["FolderName"].ToString();
                tvis.Items.Add("*");
                tvi.Items.Add(tvis);               
            }
        }
把  DataTemplate 绑定到你的Treeview上的ItemsPanelTemplate上。

Answer 6

看不太懂，这个方法好像可行，就是不知道怎么用到我的这上面 <TreeView x:Name="myFolders" Margin="0,20,0,0" Width="auto" TreeViewItem.PreviewMouseRightButtonDown="TreeViewItem_PreviewMouseRightButtonDown"    TreeViewItem.Selected="TreeViewItem_Selected"  TreeViewItem.Expanded="mytreeview_Expanded" HorizontalAlignment="Left" VerticalAlignment="Top" Height="auto">
                <TreeView.Effect>
                    <DropShadowEffect ShadowDepth="1" Opacity="0.345"/>
                </TreeView.Effect>               
                <TreeView.ContextMenu>
                    <ContextMenu x:Name="menu" Width="50">
                        <MenuItem Header="下载" x:Name="download" MenuItem.Click="downloadMenuItem_Click" >                         
                        </MenuItem>
                        <MenuItem Header="同步到服务器" x:Name="upload" MenuItem.Click="uploadMenuItem_Click" >
                        </MenuItem>
                        <MenuItem Header="文件夹另存为..." x:Name="share" MenuItem.Click="shareMenuItem_Click" >
                        </MenuItem>
                        <MenuItem Header="新建文件夹"  MenuItem.Click="Createfolder_click" >
                        </MenuItem>
                         <MenuItem Header="添加文件" MenuItem.Click="dg_addnewfile_Click" >
                         </MenuItem>
                         <MenuItem Header="重命名"  MenuItem.Click="rename_Click" >
                        </MenuItem>                       
                        <MenuItem Header="删除"  MenuItem.Click="Delete_Click" >
                        </MenuItem>
                    </ContextMenu>
                </TreeView.ContextMenu>
                <TreeView.ItemContainerStyle>
                    <Style TargetType="{x:Type TreeViewItem}">
                        <EventSetter Event="TreeViewItem.PreviewMouseRightButtonDown" Handler="TreeViewItem_PreviewMouseRightButtonDown"/>
                    </Style>
                </TreeView.ItemContainerStyle>
            </TreeView>   
private void TreeViewRootLoad()//加载根目录
        {            
            string loginTemp = "username=" + Global.UserName;
            DataTable dt = HtmlHelper.GetSOAPResult(loginTemp, "GetFolderFootList");
            myFolders.Items.Clear();
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                TreeViewItem tvi = new TreeViewItem();
                tvi.Tag = dt.Rows[i]["FolderId"].ToString();
                tvi.Header = dt.Rows[i]["FolderName"].ToString();
                tvi.Items.Add("*");
                if (i == dt.Rows.Count - 1)
                {
                    fid = tvi.Tag.ToString();
                    BandFile();
                }
                myFolders.Items.Add(tvi);
            }
        }
 private void tv_ChildLoad(TreeViewItem tvi)//展开子目录
        {
            string loginTemp = "Folderid=" + tvi.Tag.ToString();
            DataTable dt = HtmlHelper.GetSOAPResult(loginTemp, "GetFolderChildList");
            if (!tvi.Items.Contains("*"))
            {
                return;
            }
            tvi.Items.Clear();
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                TreeViewItem tvis = new TreeViewItem();
                tvis.Tag = dt.Rows[i]["FolderId"].ToString();
                tvis.Header = dt.Rows[i]["FolderName"].ToString();
                tvis.Items.Add("*");
                tvi.Items.Add(tvis);               
            }
        }
把  DataTemplate 绑定到你的Treeview上的ItemsPanelTemplate上。能说的详细一些吗，我接触WPF才两个星期..

Answer 7

把  DataTemplate 绑定到你的Treeview上的ItemsPanelTemplate上。这还不详细？？？

Answer 8

为麻要用双绑定这么蛋疼的东西，如果用Textbox，你还要考虑，它什么时候是只读的，不可拥有可输入的焦点，什么时候又是可以有输入焦点的，这样不仅要修改模板做绑定，还要对付触法器，不如按简单的方法做，你看VIsual Studio它都是只弹出对话框。