/// <summary>
/// Adds the specified entity type and any associated entity types recursively to the specified set.
/// </summary>
/// <param name="entityType">The entity Type to add.</param>
/// <param name="entityTypes">The types set to accumulate in.</param>
/// <param name="metadataProvider">The metadata provider.</param>
private static void AddEntityType(Type entityType, ICollection <Type> entityTypes, Metadata.MetadataProvider metadataProvider)
{
if (entityTypes.Contains(entityType))
{
// already added this type
return;
}
entityTypes.Add(entityType);
RegisterDataControllerTypeDescriptionProvider(entityType, metadataProvider);
if (metadataProvider.IsEntityType(entityType))
{
TypeDescriptor.GetProperties(entityType)
.Cast <PropertyDescriptor>()
.Where(pd => pd.HasAttribute <AssociationAttribute>())
.Where(TypeUtility.IsDataMember)
.Select(pd => TypeUtility.GetElementType(pd.PropertyType))
.ForEach(t => AddEntityType(t, entityTypes, metadataProvider));
}
// Recursively add any derived entity types specified by [KnownType]
// attributes
TypeUtility.GetKnownTypes(entityType, true)
.Where(entityType.IsAssignableFrom)
.ForEach(t => AddEntityType(t, entityTypes, metadataProvider));
}
