private void newFolderToolStripMenuItem_Click(object sender, EventArgs e) { NewFolderDialog nfd = new NewFolderDialog(); if (nfd.Show() == DialogResult.OK) { string newFolderPath = ((Folder)this.projectView.SelectedNode.Tag).Directory.FullName + @"\" + nfd.NewFolderName; Directory.CreateDirectory(newFolderPath); Folder newFolder = new Folder(newFolderPath); newFolder.Persona = ((Folder)this.projectView.SelectedNode.Tag)?.Persona; //if persona is set in parent folder set it to the new folder too this.projectView.SelectedNode.Nodes.Add(Folder.getNode(newFolder)); } }