wpf文件管理器代码

WPF（Windows Presentation Foundation）是Windows平台上的一种用户界面框架，用于构建富客户端应用程序。下面是一个简单的WPF文件管理器代码示例：

// MainWindow.xaml.cs
using System;
using System.IO;
using System.Windows;
using System.Windows.Controls;

namespace FileExplorer
{
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            LoadDirectory(Directory.GetDirectoryRoot(Directory.GetCurrentDirectory()));
        }

        private void LoadDirectory(string path)
        {
            try
            {
                DirectoryInfo directoryInfo = new DirectoryInfo(path);
                DirectoryInfo[] directories = directoryInfo.GetDirectories();
                FileInfo[] files = directoryInfo.GetFiles();

                // 清空TreeView的节点
                treeView.Items.Clear();

                // 添加目录节点
                foreach (DirectoryInfo directory in directories)
                {
                    TreeViewItem directoryNode = new TreeViewItem();
                    directoryNode.Header = directory.Name;
                    directoryNode.Tag = directory.FullName;
                    directoryNode.Items.Add("*");  // 占位符，用于延迟加载子目录
                    directoryNode.Expanded += DirectoryNode_Expanded;
                    treeView.Items.Add(directoryNode);
                }

                // 添加文件节点
                foreach (FileInfo file in files)
                {
                    TreeViewItem fileNode = new TreeViewItem();
                    fileNode.Header = file.Name;
                    fileNode.Tag = file.FullName;
                    treeView.Items.Add(fileNode);
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show("加载目录失败：" + ex.Message);
            }
        }

        private void DirectoryNode_Expanded(object sender, RoutedEventArgs e)
        {
            TreeViewItem directoryNode = (TreeViewItem)sender;
            if (directoryNode.Items.Count == 1 && directoryNode.Items[0] is string)
            {
                directoryNode.Items.Clear();
                try
                {
                    DirectoryInfo directoryInfo = new DirectoryInfo((string)directoryNode.Tag);
                    DirectoryInfo[] directories = directoryInfo.GetDirectories();
                    FileInfo[] files = directoryInfo.GetFiles();

                    // 添加子目录节点
                    foreach (DirectoryInfo directory in directories)
                    {
                        TreeViewItem subDirectoryNode = new TreeViewItem();
                        subDirectoryNode.Header = directory.Name;
                        subDirectoryNode.Tag = directory.FullName;
                        subDirectoryNode.Items.Add("*"); // 占位符，用于延迟加载子目录
                        subDirectoryNode.Expanded += DirectoryNode_Expanded;
                        directoryNode.Items.Add(subDirectoryNode);
                    }

                    // 添加文件节点
                    foreach (FileInfo file in files)
                    {
                        TreeViewItem fileNode = new TreeViewItem();
                        fileNode.Header = file.Name;
                        fileNode.Tag = file.FullName;
                        directoryNode.Items.Add(fileNode);
                    }
                }
                catch (Exception ex)
                {
                    MessageBox.Show("加载目录失败：" + ex.Message);
                }
            }
        }

        private void treeView_SelectedItemChanged(object sender, RoutedPropertyChangedEventArgs<object> e)
        {
            TreeView treeView = (TreeView)sender;
            TreeViewItem selectedNode = (TreeViewItem)treeView.SelectedItem;
            string filePath = (string)selectedNode.Tag;
            txtPath.Text = filePath;
        }
    }
}

上述代码是一个简单的文件管理器，主要功能有：
- 展示指定路径下的目录和文件的树形结构；
- 支持展开目录节点并加载子目录的延迟加载功能；
- 在TreeView中选中节点时，在TextBox中显示该节点对应的文件路径。

希望以上代码能帮到你！如果还有其他问题，请随时提问。