/// <summary>
 /// Loads <see cref="B08_Region"/> items on the B07_RegionObjects collection.
 /// </summary>
 /// <param name="collection">The grand parent <see cref="B05_CountryColl"/> collection.</param>
 internal void LoadItems(B05_CountryColl collection)
 {
     foreach (var item in this)
     {
         var obj  = collection.FindB06_CountryByParentProperties(item.parent_Country_ID);
         var rlce = obj.B07_RegionObjects.RaiseListChangedEvents;
         obj.B07_RegionObjects.RaiseListChangedEvents = false;
         obj.B07_RegionObjects.Add(item);
         obj.B07_RegionObjects.RaiseListChangedEvents = rlce;
     }
 }