Книга: C# 2008 Programmer

Removing a Directory

Removing a Directory

To remove (delete) a directory, a user first selects the folder to delete and then clicks the Remove Folder button. To delete a directory, you call the PerformWebRequest() helper function you defined earlier. This is accomplished with the Remove Folder button:

//---Remove a folder---
private void btnRemoveFolder_Click(object sender, EventArgs e) {
 if (TreeView1.SelectedNode.ImageIndex == ico_PHOTO) {
  MessageBox.Show("Please select a folder to delete.");
  return;
 }
 try {
  string FullPath =
   Properties.Settings.Default.FTP_SERVER +
   TreeView1.SelectedNode.FullPath.Substring(1).Replace("r", "");
  //---remove the folder--- 
  FtpWebResponse ftpResp =
   PerformWebRequest(FullPath, WebRequestMethod.RemoveDirectory);
  //---delete current node---
  TreeView1.SelectedNode.Remove();
  //---update the statusbar---
  ToolStripStatusLabel1.Text =
   ftpResp.StatusDescription.Replace("rn", string.Empty);
 } catch (Exception ex) {
  MessageBox.Show(ex.ToString());
 }
}

If a directory is not empty (that is, if it contains files and subdirectories), the deletion process will fail. The user will have to remove its content before removing the directory. 

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