/// <summary>
 /// Remove selected item from white list
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="e"></param>
 private void B_removeFromWhiteList_Click(object sender, EventArgs e)
 {
     if (LB_whiteList.SelectedItems.Count > 0)
     {
         LB_whiteList.Items.Remove(LB_whiteList.SelectedItem);
         LB_whiteList.Refresh();
     }
 }
 /// <summary>
 /// Edit selected item from white list
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="e"></param>
 private void B_editSelectedWhiteRecord_Click(object sender, EventArgs e)
 {
     if (LB_whiteList.SelectedItems.Count > 0)
     {
         TB_addToWhiteList.Text = LB_whiteList.SelectedItem.ToString();
         LB_whiteList.Items.Remove(LB_whiteList.SelectedItem);
         LB_whiteList.Refresh();
     }
 }