protected void doCheckinGroupStuff()
        {
            int checkinConfigFilter = int.TryParse(gtpCheckinConfig.SelectedValue, out checkinConfigFilter) ? checkinConfigFilter : -1;
            int checkinAreaFilter = int.TryParse(gtpCheckinArea.SelectedValue, out checkinAreaFilter) ? checkinAreaFilter : -1;
            int checkinGroupFilter = int.TryParse(rddlCheckinGroup.SelectedValue, out checkinGroupFilter) ? checkinGroupFilter : -1;

            int groupTypePurposeCheckInTemplateId = DefinedValueCache.Read(new Guid(Rock.SystemGuid.DefinedValue.GROUPTYPE_PURPOSE_CHECKIN_TEMPLATE)).Id;
            List<GroupType> checkinConfigs = new GroupTypeService(_rockContext).Queryable().Where(a => a.GroupTypePurposeValueId == groupTypePurposeCheckInTemplateId).OrderBy(a => a.ParentGroupTypes.FirstOrDefault().Id).ThenBy(a => a.Order).ThenBy(a => a.Name).ToList();

            gtpCheckinConfig.GroupTypes = checkinConfigs;
            if (gtpCheckinConfig.Items.FindByValue(checkinConfigFilter.ToString()) != null)
            {
                gtpCheckinConfig.SelectedValue = checkinConfigFilter.ToString();
            }

            gtpCheckinArea.GroupTypes = getCGT(checkinConfigs.Where(a => a.Id == gtpCheckinConfig.SelectedGroupTypeId).ToList(), "");
            if (gtpCheckinArea.Items.FindByValue(checkinAreaFilter.ToString()) != null)
            {
                gtpCheckinArea.SelectedValue = checkinAreaFilter.ToString();
            }

            List<Rock.Model.Group> checkinGroups = new GroupService(_rockContext).Queryable().Where(a => a.GroupTypeId == gtpCheckinArea.SelectedGroupTypeId).OrderBy(a => a.Order).ThenBy(a => a.Name).ToList();
            checkinGroups.Insert(0, new Rock.Model.Group() { Name = "", Id = -1 });
            rddlCheckinGroup.DataSource = checkinGroups;
            rddlCheckinGroup.DataTextField = "Name";
            rddlCheckinGroup.DataValueField = "Id";
            rddlCheckinGroup.DataBind();

            if (rddlCheckinGroup.Items.FindByValue(checkinGroupFilter.ToString()) != null)
            {
                rddlCheckinGroup.SelectedValue = checkinGroupFilter.ToString();
            }
        }