Question

Ok, i have some code that will scan my computer and find .txt files and display them in a listbox:

        private void button2_Click(object sender, EventArgs e)
    {
     IEnumerable<string> files = System.IO.Directory.EnumerateFiles(@"C:\", "*.txt*", System.IO.SearchOption.AllDirectories);
        foreach (var f in files)
        {
            listBox1.Items.Add(String.Format("{0}", f)); 
        }
    }

I get an error every time i run this. It says i do not authorization to the trash bin. I do not care weather it scans the trash or not. It there any way to exclude the trash bin out of the scan? Also, can someone help me improve my code, if you see anything wrong! Thanks!

Answer 1

Quickest way is to put them under a try-catch block because EnumerateFiles function does not have access to the restricted files because of the operating system permissions.

  private void SearchDrives()
  {
     foreach (String drive in Directory.GetLogicalDrives())
     {
        try
        {
           // Search for folders into the drive.
           SearchFolders(drive);
        }
        catch (Exception) { }
     }
  }
  //---------------------------------------------------------------------------

  private void SearchFolders(String prmPath)
  {
     try
     {
        foreach (String folder in Directory.GetDirectories(prmPath))
        {
           // Recursive call for each subdirectory.
           SearchFolders(folder);

           // Create the list of files.
           SearchFiles(folder);
        }
     }
     catch (Exception) { }
  }
  //---------------------------------------------------------------------------

  private void SearchFiles(String prmPath)
  {
     try
     {
        foreach (String file in Directory.GetFiles(prmPath))
        {
           FileInfo info = new FileInfo(file);
           if (info.Extension == ".txt")
           {
              listBox1.Items.Add(info.Name); 
           }
        }
     }
     catch (Exception) { }
  }
  //---------------------------------------------------------------------------

Not just the recycle bin, it will also fail to read the file header of several files into your system direcotry.