Q692791问题的回答，https://ask.csdn.net/questions/692791

C#遍历treeview节点，以及对应名字文件的内容获取 Q692791问题的回答，https://ask.csdn.net/questions/692791

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

namespace Q692791
{
    public partial class Form1 : Form
    {
        public Form1（）
        {
            InitializeComponent（）;
        }

        private void button1_Click（object sender EventArgs e）
        {
            FolderBrowserDialog dlg = new FolderBrowserDialog（）;
            if （dlg.ShowDialog（） == System.Windows.Forms.DialogResult.OK）
            {
                TreeNode tn = new TreeNode（Path.GetDirectoryName（dlg.SelectedPath））;
                tn.Name = Path.GetDirectoryName（dlg.SelectedPath）;
                treeView1.Nodes.Add（tn）;
                LoadPath（dlg.SelectedPathtn）;
            }
        }

        private void LoadPath（string p TreeNode tn）
        {
            DirectoryInfo di = new DirectoryInfo（p）;
            foreach （var item in di.GetDirectories（））
            {
                TreeNode tn1 = default（TreeNode）;
                try
                {
                    tn1 = new TreeNode（Path.GetFileName（item.FullName））;
                    tn.Nodes.Add（tn1）;
                    LoadPath（item.FullName tn1）;
                }
                catch
                {
                    if （tn1 != null）
                        tn.Nodes.Remove（tn1）;
                }
                Application.DoEvents（）;
            }
            foreach （var txt in di.GetFiles（“*.txt“ SearchOption.TopDirectoryOnly））
            {
                TreeNode tn1 = new TreeNode（Path.GetFileName（txt.FullName））;
                tn1.Tag = txt.FullName;
                tn.Nodes.Add（tn1）;
            }
        }

        private void LoadText（StringBuilder sb TreeNode treeNode）
        {
            foreach （TreeNode item in treeNode.Nodes）
            {
                if （item.Tag == null）
                {
                    LoadText（sb item）;
                }
                else
                {
                    try
                    {
                        if （item.Checked）
                        {
                            string s = File.ReadAllText（（string）item.Tag）;
                            sb.Append（s）;
                            sb.Append（“\r\n“）;
                        }
                    }
                    catch
                    {

                    }
                }
            }
        }

        private void treeView1_AfterCheck（object sender TreeViewEventArgs e）
        {
            if （e.Node.Checked）
            {
                foreach （TreeNode item in e.Node.Nodes） item.Checked = true;
            }
            StringBuilder sb = new StringBuilder（）;
            LoadText（sb treeView1.Nodes[0]）;
            textBox1.Text = sb.ToString（）;
        }

    }
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     文件         863  2018-06-23 00:04  Q692791\Q692791.sln
     文件       21504  2018-06-23 00:46  Q692791\Q692791.suo
     目录           0  2018-06-23 00:04  Q692791\Q692791\
     目录           0  2018-06-23 00:04  Q692791\Q692791\bin\
     目录           0  2018-06-23 00:12  Q692791\Q692791\bin\Debug\
     文件       10240  2018-06-23 00:40  Q692791\Q692791\bin\Debug\Q692791.exe
     文件       28160  2018-06-23 00:40  Q692791\Q692791\bin\Debug\Q692791.pdb
     文件       11600  2018-06-23 00:45  Q692791\Q692791\bin\Debug\Q692791.vshost.exe
     文件         490  2010-03-17 22:39  Q692791\Q692791\bin\Debug\Q692791.vshost.exe.manifest
     文件        2983  2018-06-23 00:40  Q692791\Q692791\Form1.cs
     文件        3279  2018-06-23 00:28  Q692791\Q692791\Form1.Designer.cs
     文件        5817  2018-06-23 00:28  Q692791\Q692791\Form1.resx
     目录           0  2018-06-23 00:04  Q692791\Q692791\obj\
     目录           0  2018-06-23 00:04  Q692791\Q692791\obj\x86\
     目录           0  2018-06-23 00:40  Q692791\Q692791\obj\x86\Debug\
     文件        2152  2018-06-23 00:04  Q692791\Q692791\obj\x86\Debug\DesignTimeResolveAssemblyReferences.cache
     文件        6386  2018-06-23 00:40  Q692791\Q692791\obj\x86\Debug\DesignTimeResolveAssemblyReferencesInput.cache
     文件         468  2018-06-23 00:28  Q692791\Q692791\obj\x86\Debug\GenerateResource.read.1.tlog
     文件        1034  2018-06-23 00:28  Q692791\Q692791\obj\x86\Debug\GenerateResource.write.1.tlog
     文件        1192  2018-06-23 00:45  Q692791\Q692791\obj\x86\Debug\Q692791.csproj.FileListAbsolute.txt
     文件       10240  2018-06-23 00:40  Q692791\Q692791\obj\x86\Debug\Q692791.exe
     文件         180  2018-06-23 00:28  Q692791\Q692791\obj\x86\Debug\Q692791.Form1.resources
     文件       28160  2018-06-23 00:40  Q692791\Q692791\obj\x86\Debug\Q692791.pdb
     文件         180  2018-06-23 00:12  Q692791\Q692791\obj\x86\Debug\Q692791.Properties.Resources.resources
     目录           0  2018-06-23 00:04  Q692791\Q692791\obj\x86\Debug\TempPE\
     文件         499  2018-06-23 00:04  Q692791\Q692791\Program.cs
     目录           0  2018-06-23 00:04  Q692791\Q692791\Properties\
     文件        1426  2018-06-23 00:04  Q692791\Q692791\Properties\AssemblyInfo.cs
     文件        2843  2018-06-23 00:04  Q692791\Q692791\Properties\Resources.Designer.cs
     文件        5612  2018-06-23 00:04  Q692791\Q692791\Properties\Resources.resx
     文件        1093  2018-06-23 00:04  Q692791\Q692791\Properties\Settings.Designer.cs
............此处省略2个文件信息