c#实现资源浏览器

最新推荐文章于 2025-05-26 15:53:47 发布

原创最新推荐文章于 2025-05-26 15:53:47 发布 · 1k 阅读

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CC 4.0 BY-SA版权

文章标签：

#浏览器 #c# #listview #string #exception #object

这是一个C#实现的资源浏览器示例，通过ListView和TreeView展示文件系统内容。当选择"我的电脑"时，显示逻辑驱动器；否则，显示选定目录下的文件和子目录。程序还包含异常处理，以捕获可能的文件系统访问错误。

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;

namespace resExp
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            this.StartPosition = FormStartPosition.CenterScreen;
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            listView1.View = View.Details;
            listView1.Scrollable = true;
            listView1.GridLines = true;
            listView1.FullRowSelect = true;
            listView1.MultiSelect = true;
            listView1.Columns.Add("文件名",listView1.Width);
        }

        private void treeView1_AfterSelect(object sender, TreeViewEventArgs e)
        {
            treeView1.SelectedNode = e.Node;
            if (treeView1.SelectedNode.Text == "我的电脑")
            {
                disDrivers(treeView1.SelectedNode);
            }
            else
            {
                disDirectories(treeView1.SelectedNode);
            }
        }

        private void disDrivers(TreeNode parentNode)
        {
            if (parentNode.Nodes.Count == 0)
            {
                foreach (string drive in Directory.GetLogicalDrives())
                {
                    TreeNode tn = new TreeNode();
                    tn.Text = drive.Substring(0, drive.Length - 1);
                    tn.ImageIndex = 1;
                    tn.SelectedImageIndex = 1;
                    tn.Tag = drive;
                    parentNode.Nodes.Add(tn);
                }
            }
        }

        private void disDirectories(TreeNode parentNode)
        {
            listView1.Items.Clear();
            string path = parentNode.Tag.ToString();

            if (parentNode.Nodes.Count == 0)
            {
                try
                {
                    foreach (string directoryFile in Directory.GetFileSystemEntries(path))
                    {
                        TreeNode tn = new TreeNode();
                        tn.Tag = directoryFile;
                        tn.Text = directoryFile.Substring(directoryFile.LastIndexOf("//") + 1);
                        tn.ImageIndex = 2;
                        tn.SelectedImageIndex = 3;
                        parentNode.Nodes.Add(tn);

                        ListViewItem li = new ListViewItem();
                        li.SubItems.Clear();
                        li.SubItems[0].Text = directoryFile.Substring(directoryFile.LastIndexOf("//") + 1);
                        listView1.Items.Add(li);

                    }
                }
                catch (Exception e)
                {
                    MessageBox.Show(e.Message);
                }
            }
        }
    }
}