void ButtonAddClick(object sender, EventArgs e) { if (listViewAvailablePriveleges.SelectedItems.Count > 0) { Module m = modules[comboBoxModule.SelectedIndex]; ModuleCommand c = m.Commands[listViewAvailablePriveleges.SelectedItems[0].Index]; UserModule module = user.GetModule(m); module.AddCommand(c); ComboBoxModuleSelectedIndexChanged(sender, e); } }