public void LoadGroup()
        {
            GroupDao groupDao = new GroupDao();

            groupDao.MakeConnection(Properties.Resources.strConnection);
            addEventWindow.GroupData = groupDao.LoadListGroupName(((App)Application.Current).UserName);
            List <CheckBox> groupShowList = new List <CheckBox>();
            int             count         = 1;

            foreach (GroupDto groupDto in groupDao.LoadListGroupName(((App)Application.Current).UserName))
            {
                CheckBox checkBox = new CheckBox();
                checkBox.Content = count + " " + groupDto.Name;
                groupShowList.Add(checkBox);
                count++;
            }
            addEventWindow.Group = groupShowList;
        }