private void SetHasPayments( int registrationInstanceId, RockContext rockContext )
{
var registrationIdQry = new RegistrationService( rockContext )
.Queryable().AsNoTracking()
.Where( r => r.RegistrationInstanceId == registrationInstanceId )
.Select( r => r.Id );
var registrationEntityType = EntityTypeCache.Read( typeof( Rock.Model.Registration ) );
hfHasPayments.Value = new FinancialTransactionDetailService( rockContext )
.Queryable().AsNoTracking()
.Where( d =>
d.EntityTypeId.HasValue &&
d.EntityId.HasValue &&
d.EntityTypeId.Value == registrationEntityType.Id &&
registrationIdQry.Contains( d.EntityId.Value ) )
.Any().ToString();
}