/// <summary>
        /// Opens Create Update Employee in Add mode
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnAdd(object sender, RoutedEventArgs e)
        {
            //Open in Add Mode
            var subfrmCreateUpdateDelete = new subfrmCreateUpdateEmployee(_user);

            subfrmCreateUpdateDelete.ShowDialog();
        }
        /// <summary>
        /// Action Event Handler for Edit
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnEdit(object sender, RoutedEventArgs e)
        {
            //Get username from datagrid
            var selectedEmployee = (Employee)globalEmployeeList.SelectedItem;
            var username         = selectedEmployee.Username;

            //Open in Edit Mode
            var subfrmCreateUpdateDelete = new subfrmCreateUpdateEmployee(_user, username);

            subfrmCreateUpdateDelete.ShowDialog();
        }