private void listviewTrainFolders_DoubleClick(object sender, EventArgs e) {
if (listviewTrainFolders.SelectedItems.Count == 1) {
string t = listviewTrainFolders.SelectedItems[0].Tag as string;
if (t != null) {
if (t.Length == 0 || System.IO.Directory.Exists(t)) {
textboxTrainFolder.Text = t;
}
}
}
}
private void listviewTrainFolders_KeyDown(object sender, KeyEventArgs e) {