/// <summary>
/// This method determines if the specified Type should be treated as a
/// complex type by the framework.
/// </summary>
/// <param name="type">The type to check.</param>
/// <returns>True if the type is a complex type, false otherwise.</returns>
public static bool IsComplexType(Type type)
{
#if !SERVERFX
// Client side we can rely on derivaition from ComplexObject
if (!typeof(ComplexObject).IsAssignableFrom(type))
{
return(false);
}
#else
if (!type.IsVisible || type.IsGenericType || type.IsAbstract)
{
return(false);
}
if (typeof(IEnumerable).IsAssignableFrom(type))
{
return(false);
}
if (!type.IsClass)
{
return(false);
}
if (type.GetConstructor(Type.EmptyTypes) == null)
{
return(false);
}
if (TypeUtility.IsPredefinedType(type))
{
return(false);
}
// can't be a framework type
if (IsSystemAssembly(type.Assembly))
{
return(false);
}
// server side only checks
// can't be an entity
if (TypeDescriptor.GetProperties(type).Cast <PropertyDescriptor>().Any(p => p.Attributes[typeof(KeyAttribute)] != null))
{
return(false);
}
#endif
return(true);
}
/// <summary>
/// Returns true if the specified property is a data member that should be serialized
/// </summary>
/// <param name="propertyDescriptor">The property to inspect</param>
/// <returns>true if the specified property is a data member that should be serialized</returns>
public static bool IsSerializableDataMember(PropertyDescriptor propertyDescriptor)
{
if (!(TypeUtility.IsPredefinedType(propertyDescriptor.PropertyType) || TypeUtility.IsSupportedComplexType(propertyDescriptor.PropertyType)))
{
return(false);
}
if (propertyDescriptor.Attributes[typeof(ExcludeAttribute)] != null)
{
// properties that are marked [Exclude] are not data members
return(false);
}
if (propertyDescriptor.Attributes[typeof(AssociationAttribute)] != null)
{
// associations are not data members
return(false);
}
AttributeCollection attrs = propertyDescriptor.ComponentType.Attributes();
if (attrs[typeof(DataContractAttribute)] != null)
{
// [DataContract] on type, nothing on member
if (propertyDescriptor.Attributes[typeof(DataMemberAttribute)] == null)
{
return(false);
}
}
else
{
// [IgnoreDataMember] on member
if (propertyDescriptor.Attributes[typeof(IgnoreDataMemberAttribute)] != null)
{
return(false);
}
}
return(true);
}
