private void BindNonAdminsComboBox(ComboBox comboBox)
        {
            DataSet nonAdminsDS = UserAccountManager.GetNonAdminsDataSet();

            comboBox.ItemsSource       = nonAdminsDS.Tables[0].DefaultView;
            comboBox.DisplayMemberPath = nonAdminsDS.Tables[0].Columns["login"].ToString();
            comboBox.SelectedValuePath = nonAdminsDS.Tables[0].Columns["id"].ToString();
        }