Directory Question

[lothos12345]

In visual basic.NET a user has a combo box; this combo box is filled with the names of either files or directories with files in them. When the user selects a item in the combo box I want the program to first determine if the name is a filename or a directory name, and then copy it (and all its contents if item is directory) to a predetermined location that is already hardcoded into the program. I am not sure how to accomplish this any help or examples would be greatly appreciated.

[Joe Mamma]

start with a class like this (C# because vb is mess) . . .

public class FileSystemItem
{
 System.IO.FileSystemInfo _obj;
 bool isFile=false;
 internal FileSystemItem(System.IO.FileSystemInfo obj)
 {
   _obj = obj;
   isFile = obj is System.IO.FileInfo;
 }

 public string Display
 {
   get
   {
     return string.Format("{0} - {1}", isFile ? "FILE" : "[DIR]", _obj.Name);
   }
 }
 public FileSystemItem Data
 {
   get
   {
     return this;
   }
 }

 public void Copy(string location)
 {
   if(!System.IO.Directory.Exists(location))
     System.IO.Directory.CreateDirectory(location);
   if (isFile)
   {
     if (System.IO.File.Exists(location + _obj.Name))
       System.IO.File.Delete(location + _obj.Name);
     System.IO.File.Copy( _obj.FullName, location + _obj.Name);
   }
   else
   {
     if (!System.IO.Directory.Exists(location + _obj.Name))
       System.IO.Directory.CreateDirectory(location + _obj.Name);
     System.IO.DirectoryInfo curr = _obj as System.IO.DirectoryInfo;
     location+= _obj.Name + "\\";
     foreach(System.IO.DirectoryInfo di in curr.GetDirectories())
     {
       FileSystemItem fi = new FileSystemItem(di);
       fi.Copy(location);
     }
     foreach(System.IO.FileInfo fiCurr in curr.GetFiles())
     {
       FileSystemItem fi = new FileSystemItem(fiCurr);
       fi.Copy(location);
     }
   }
 }
}

create a form. . . drop a button, a combobox and a folderbrowse dialog on it. . .

 

make Form1.Main look like this:

[sTAThread]
static void Main() 
{
 Form1 frm = new Form1();
 if (frm.folderBrowserDialog1.ShowDialog() != DialogResult.OK)
   return;
 Application.Run(frm);
}

add this function to the form

private ArrayList AppFileSystemInfo 
{
 get
 { 
   ArrayList result = new ArrayList();
   System.IO.DirectoryInfo di = new System.IO.DirectoryInfo(folderBrowserDialog1.SelectedPath);
   foreach  (System.IO.FileSystemInfo fs in di.GetDirectories())
     result.Add(new FileSystemItem(fs));
   foreach  (System.IO.FileSystemInfo fs in di.GetFiles())
     result.Add(new FileSystemItem(fs));
   return result;
 }
}

attach this Form1.Load:

private void Form1_Load(object sender, System.EventArgs e)
{
 comboBox1.DataSource = AppFileSystemInfo;
 comboBox1.DisplayMember = "Display";
 comboBox1.ValueMember = "Data";
}

atttach this to the button click event:

private void button1_Click(object sender, System.EventArgs e)
{
 FileSystemItem fi = comboBox1.SelectedItem as FileSystemItem;
 fi.Copy("d:\\foobar\\");
}

done.

 

God, I love C#!

Edited July 22, 2005 by Joe Mamma