这题可是难啦！ Win平台下，如何将固定路径下的文件夹名称，填到comboBox中?

Question

路径Program File \Info 
文件夹1
文件夹2
文件夹3
如何将，这个路径下的名件夹名称，填到comboBox中?

Answer 1

DirectoryInfo di = new DirectoryInfo("路径");
DirectoryInfo[] dirs = di.GetDirectories();
for(int i=0;i<dirs.Lenght;i++)
{
    comboBox.Items.Add(dirs[i].Name);
}

Answer 2

 string[] infos = Directory.GetDirectories("E:\\");
            DataTable dt = new DataTable();
            dt.Columns.Add(new DataColumn("address"));
            foreach (string info in infos)
            {
                string directoryName = info.Substring(info.LastIndexOf("\\")+1);
                DataRow row=dt.NewRow();
                row["address"] = directoryName;
                dt.Rows.Add(row);
            }
            foreach (DataRow row in dt.Rows)
            {
                Console.WriteLine(row["address"].ToString());
            }

Answer 3

路径没看到是绝对地址,我假定是C盘
记得加入IO  using System.IO; 
 DirectoryInfo[] dirs = new DirectoryInfo("C:\\Program Files").GetDirectories();
            for (int i = 0; i < dirs.Length; i++)
            {
                 comboBox1.Items.Add(dirs[i].Name);
            }
            comboBox1.SelectedText = dirs[0].Name;

Answer 4

DirectoryInfo di = new DirectoryInfo("路径");
DirectoryInfo[] dirs = di.GetDirectories();
for(int i=0;i<dirs.Lenght;i++)
{
    comboBox.Items.Add(dirs[i].Name);
}

Answer 5

DirectoryInfo di2 = new DirectoryInfo("filePath");
路径是动态的，如何获得？这里就显示filePath 

Answer 6

是显示filePath字符串中的内容。sorry

Answer 7

DirectoryInfo di2 = new DirectoryInfo("filePath"); 
-----》
DirectoryInfo di2 = new DirectoryInfo(filePath); filePath你传来的啊？

Answer 8

嗯，那文件夹中的txt文本文件名称也是这么获得吗？

Answer 9

文件夹下的 .txt文本文件名称也是这么获得吗？

Answer 10

如果获得文件夹下文件
你得使用di2.GetFiles如果还想获得子文件夹的内容
你得递归

Answer 11

获取文件就用DirectoryInfo.GetFiles()

Answer 12

传参数到new DirectoryInfo(路径参数)这里就可以了啊。

Answer 13

补充一句，你可以用System.IO.Path.GetExtension（“路径”）这个方法得到文件的扩展名，这样就可以得到任何一类的文件了，文件夹用GetDirectories（）， 文件用GetFiles（）

Answer 14

DirectoryInfo[] di= new DirectoryInfo(path).GetDirectories(); 
for(int i=0;i <di.Lenght;i++) 
{ 
    comboBox.Items.Add(di[i].Name); 
} 
楼上的都回答啦

Answer 15

DirectoryInfo di = new DirectoryInfo("路径"); 
FileInfo[] files=di.GetFiles();foreach(FileInfo info in files)
{
   comboBox.Items.Add(info.FullName); 
}

Answer 16

报错为Cannot implicitly convert type'System.IO.FileInfo[]' to 'System.IO.DirectoryInfo' FileInfo di2 = new FileInfo(filePath);
 FileInfo[] dirs2 = di2.GetFiles();
还是报错！

Answer 17

DirectoryInfo di2 = new DirectoryInfo(filePath);
FileInfo[] dirs2 = di2.GetFiles(); 

Answer 18

我还真是搞不清楚你到底想干啥
如果想获得指定目录的文件夹，那么if (Directory.Exists(filePath))
{
    string[] directories = Directory.GetDirectories(filePath);
    foreach (string s in directories)
    {
        comboBox.Items.Add(s);
    }
}
如果想获得指定目录的文件，那么if (Directory.Exists(filePath))
{
    string[] fileNames = Directory.GetFiles(filePath);
    foreach (string s in fileNames)
    {
        comboBox.Items.Add(s);
    }
}
如果想获得指定目录的文件，包括子文件夹下的文件，那么if (Directory.Exists(filePath))
{
    getDirectories(filePath);
}private void getDirectories(string path)
{
    string[] fileNames = Directory.GetFiles(path);
    string[] directories = Directory.GetDirectories(path);
    foreach (string file in fileNames)
    {
        comboBox.Items.Add(file);
    }
    foreach (string dir in directories)
    {
        getDirectories(dir);
    }
}

Answer 19

就是就是，已经提供了使用Directory这个类的思路了，具体应用应该自己查MSDN，自己多体会！

Answer 20

如果显示文件
不如用treeview            TreeNode node = this.treeView1.Nodes.Add("D:\\");
            AddNode(node, "D:\\");       public void AddNode(TreeNode node, string path)
        {
            try
            {
                DirectoryInfo dir = new DirectoryInfo(path);
                FileInfo[] files = dir.GetFiles();
                foreach (FileInfo f in files)
                {
                    node.Nodes.Add(f.FullName, f.FullName);
                }
                DirectoryInfo[] dirs = dir.GetDirectories();
                foreach (DirectoryInfo d in dirs)
                {
                   TreeNode subNode= node.Nodes.Add(d.FullName, d.FullName);
                   AddNode(subNode,d.FullName);//这样写速度很慢，建议你在treeView1_AfterExpand事件里写，如果在treeView1_AfterExpand里写，把这句话去掉
                }
            }
            catch { }
        }
 private void treeView1_AfterExpand(object sender, TreeViewEventArgs e)
        {
            foreach (TreeNode node in e.Node.Nodes)
            {                if (node.Nodes.Count == 0)
                {
                    if (Directory.Exists(node.Text))
                        AddNode(node, node.Text);
                }
            }        }

Answer 21

不知楼主的问题解决没，我也是遇到了相同的问题有哪位大侠帮忙看下呀！~public partial class Form1 : Form
    {
        private System.Collections.Specialized.StringCollection folderCol;        public Form1()
        {
            InitializeComponent();
            folderCol = new System.Collections.Specialized.StringCollection();
            CreateHeadersAndFillListView();
            PaintListView(@"C:\");
            folderCol.Add(@"C:\");
        }        private void CreateHeadersAndFillListView()
        {
            ColumnHeader colHead;
            //First header
            colHead = new ColumnHeader();
            colHead.Text = "Filename";
            this.listView1.Columns.Add(colHead);
            //Second header
            colHead = new ColumnHeader();
            colHead.Text = "Size";
            this.listView1.Columns.Add(colHead);
            //Third header
            colHead = new ColumnHeader();
            colHead.Text = "Last accessed";
            this.listView1.Columns.Add(colHead);
        }        private void PaintListView(string root)
        {
            try
            {
                ListViewItem lvi;
                ListViewItem.ListViewSubItem lvsi;
                if (root.CompareTo("") == 0)
                    return;
                DirectoryInfo dir = new DirectoryInfo(root);
                DirectoryInfo[] dirs = dir.GetDirectories();
                DirectoryInfo[] files = dir.GetFiles();
                this.listView1.Items.Clear();
                this.label1.Text = root;
                this.listView1.BeginUpdate();
                foreach (System.IO.DirectoryInfo di in dirs)
                {
                    lvi = new ListViewItem();
                    lvi.Text = di.Name;
                    lvi.ImageIndex = 0;
                    lvi.Tag = di.FullName;                    lvsi = new ListViewItem.ListViewSubItem();
                    lvsi.Text = "";
                    lvi.SubItems.Add(lvsi);                    lvsi = new ListViewItem.ListViewSubItem();
                    lvsi.Text = di.LastAccessTime.ToString();
                    lvi.SubItems.Add(lvsi);
                    this.listView1.Items.Add(lvi);
                }
                foreach (FileInfo fi in files)
                {
                    lvi = new ListViewItem();
                    lvi.Text = fi.Name;
                    lvi.ImageIndex = 1;
                    lvi.Tag = fi.FullName;                    lvsi = new ListViewItem.ListViewSubItem();
                    lvsi.Text = fi.Length.ToString();
                    lvi.SubItems.Add(lvsi);                    lvsi = new ListViewItem.ListViewSubItem();
                    lvsi.Text = fi.LastAccessTime.ToString();
                    lvi.SubItems.Add(lvsi);
                    this.listView1.Items.Add(lvi);
                }
                this.listView1.EndUpdate();
            }
            catch (System.Exception err)
            {
                MessageBox.Show("Error:" + err.Message);
            }        }        private void listView1_ItemActivate(object sender, EventArgs e)
        {
            System.Windows.Forms.ListView lw = (System.Windows.Forms.ListView)sender;
            string filename = lw.SelectedIndices[0].Tag.ToString();
            if (lw.SelectedIndices[0].ImageIndex != 0)
            {
                try
                {
                    System.Diagnostics.Process.Start(filename);
                }
                catch
                {
                    return;
                }
            }
            else
            {
                PaintListView(filename);
                folderCol.Add(filename);
            }
        }        private void button1_Click(object sender, EventArgs e)
        {
            if(folderCol.Count>1)
            {
                PaintListView(folderCol[folderCol.Count-2].ToString());
                folderCol.RemoveAt(folderCol.Count - 1);
            }
            else
            {
                PaintListView(folderCol[0].ToString());
            }
        }
错误 1 无法将类型“System.IO.FileInfo[]”隐式转换为“System.IO.DirectoryInfo[]” D:\My Documents\Visual Studio 2005\Projects\C#rumen\Windows\Chapter14\ListView\ListView\Form1.cs 54 41 ListView
错误 2 无法将类型“System.IO.DirectoryInfo”转换为“System.IO.FileInfo” D:\My Documents\Visual Studio 2005\Projects\C#rumen\Windows\Chapter14\ListView\ListView\Form1.cs 74 17 ListView
错误 3 “int”并不包含“Tag”的定义 D:\My Documents\Visual Studio 2005\Projects\C#rumen\Windows\Chapter14\ListView\ListView\Form1.cs 102 53 ListView
错误 4 “int”并不包含“ImageIndex”的定义 D:\My Documents\Visual Studio 2005\Projects\C#rumen\Windows\Chapter14\ListView\ListView\Form1.cs 103 39 ListView

Answer 22

上面的程序实现的是在listview控件里显示C盘文件夹,按钮是返回上一层

Answer 23

  private void PaintListView(string root)
        {
            try
            {
                ListViewItem lvi;
                ListViewItem.ListViewSubItem lvsi;
                if (root.CompareTo("") == 0)
                    return;
                DirectoryInfo dir = new DirectoryInfo(root);
                DirectoryInfo[] dirs = dir.GetDirectories();
                FileInfo[] files = dir.GetFiles();                this.listView1.Items.Clear();
                this.label1.Text = root;
                this.listView1.BeginUpdate();
                foreach (System.IO.DirectoryInfo di in dirs)
                {
                    lvi = new ListViewItem();
                    lvi.Text = di.Name;
                    lvi.ImageIndex = 0;
                    lvi.Tag = di.FullName;                    lvsi = new ListViewItem.ListViewSubItem();
                    lvsi.Text = "";
                    lvi.SubItems.Add(lvsi);                    lvsi = new ListViewItem.ListViewSubItem();
                    lvsi.Text = di.LastAccessTime.ToString();
                    lvi.SubItems.Add(lvsi);
                    this.listView1.Items.Add(lvi);
                }
                foreach (FileInfo fi in files)
                {
                    lvi = new ListViewItem();
                    lvi.Text = fi.Name;
                    lvi.ImageIndex = 1;
                    lvi.Tag = fi.FullName;                    lvsi = new ListViewItem.ListViewSubItem();
                    lvsi.Text = fi.Length.ToString();
                    lvi.SubItems.Add(lvsi);                    lvsi = new ListViewItem.ListViewSubItem();
                    lvsi.Text = fi.LastAccessTime.ToString();
                    lvi.SubItems.Add(lvsi);
                    this.listView1.Items.Add(lvi);
                }
                this.listView1.EndUpdate();
            }
            catch (System.Exception err)
            {
                MessageBox.Show("Error:" + err.Message);
            }        }