/// <summary>
        /// Calls edit User window
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Edit_Click(object sender, RoutedEventArgs e)
        {
            if (UserTable.SelectedItem is User ut)
            {
                EditUser editUser = new EditUser(ut.Name);
                editUser.Show();

                editUser.Closed += (x, y) =>
                {
                    Buchhaltung.Log("refresh");
                    UserTable.Items.Refresh();
                };
            }
        }
        /// <summary>
        /// Calls edit User window
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Edit_Click(object sender, RoutedEventArgs e)
        {
            if (UserTable.SelectedItem is User ut)
            {
                EditUser editUser = new EditUser(ut.Name);
                editUser.Show();

                editUser.Closed += (x, y) =>
                {
                    _users = new List <User>();
                    GetUsers();
                    FillTable();
                };
            }
        }