private void modListBox_ItemCheck(Object sender, ItemCheckEventArgs e) { if (StartButton.Enabled == false && modListBox.SelectedItem.ToString() != null) { string value = modListBox.SelectedItem.ToString() + ".pak"; if (e.NewValue.ToString() == "Checked") { MaPro.AddingModsInText(value); } else { MaPro.RemovingModsInText(value); } } }