/// <summary>
        /// Processes type metadata.
        /// </summary>
        /// <param name="asmName">The name of the current assembly.</param>
        /// <param name="typeElement">The XML node that defines the type metadata.</param>
        private static void ProcessMetadataType(String asmName, XElement typeElement)
        {
            var name = typeElement.AttributeValueString("Name");
            if (String.IsNullOrEmpty(name))
                throw new InvalidOperationException("Invalid type name.");

            var typeName = String.Format("{0}, {1}", name, asmName);
            var type = Type.GetType(typeName, false);
            if (type == null)
                throw new InvalidOperationException(String.Format("Invalid type name '{0}'", typeName));

            var attributes = new List<Attribute>();
            foreach (var attributeElement in typeElement.Elements())
            {
                switch (attributeElement.Name.LocalName)
                {
                    case "Editor":
                        attributes.Add(CreateEditorAttribute(attributeElement));
                        break;

                    case "TypeConverter":
                        attributes.Add(CreateTypeConverterAttribute(attributeElement));
                        break;

                    case "DefaultValue":
                        attributes.Add(CreateDefaultValueAttribute(attributeElement, type));
                        break;

                    case "Properties":
                        break;

                    default:
                        throw new InvalidOperationException(String.Format("Invalid element '{0}' in '{1}'", attributeElement.Name.LocalName, typeName));
                }
            }
            if (attributes.Any())
            {
                TypeDescriptor.AddAttributes(type, attributes.ToArray());
            }

            var properties = typeElement.Element("Properties");
            var propertyDescriptors = new List<PropertyDescriptor>();
            if (properties != null)
            {
                foreach (var propertyElement in properties.Elements())
                {
                    var propertyDescriptor = ProcessMetadataProperty(type, propertyElement);
                    propertyDescriptors.Add(propertyDescriptor);
                }
            }

            var providerParent = TypeDescriptor.GetProvider(type);
            var provider = new XmlDrivenCustomTypeDescriptionProvider(providerParent, propertyDescriptors);
            TypeDescriptor.AddProvider(provider, type);
        }
        /// <summary>
        /// Processes type metadata.
        /// </summary>
        /// <param name="asmName">The name of the current assembly.</param>
        /// <param name="typeElement">The XML node that defines the type metadata.</param>
        private static void ProcessMetadataType(String asmName, XElement typeElement)
        {
            var name = typeElement.AttributeValueString("Name");

            if (String.IsNullOrEmpty(name))
            {
                throw new InvalidOperationException("Invalid type name.");
            }

            var typeName = String.Format("{0}, {1}", name, asmName);
            var type     = Type.GetType(typeName, false);

            if (type == null)
            {
                throw new InvalidOperationException(String.Format("Invalid type name '{0}'", typeName));
            }

            var attributes = new List <Attribute>();

            foreach (var attributeElement in typeElement.Elements())
            {
                switch (attributeElement.Name.LocalName)
                {
                case "Editor":
                    attributes.Add(CreateEditorAttribute(attributeElement));
                    break;

                case "TypeConverter":
                    attributes.Add(CreateTypeConverterAttribute(attributeElement));
                    break;

                case "DefaultValue":
                    attributes.Add(CreateDefaultValueAttribute(attributeElement, type));
                    break;

                case "Properties":
                    break;

                default:
                    throw new InvalidOperationException(String.Format("Invalid element '{0}' in '{1}'", attributeElement.Name.LocalName, typeName));
                }
            }
            if (attributes.Any())
            {
                TypeDescriptor.AddAttributes(type, attributes.ToArray());
            }

            var properties          = typeElement.Element("Properties");
            var propertyDescriptors = new List <PropertyDescriptor>();

            if (properties != null)
            {
                foreach (var propertyElement in properties.Elements())
                {
                    var propertyDescriptor = ProcessMetadataProperty(type, propertyElement);
                    propertyDescriptors.Add(propertyDescriptor);
                }
            }

            var providerParent = TypeDescriptor.GetProvider(type);
            var provider       = new XmlDrivenCustomTypeDescriptionProvider(providerParent, propertyDescriptors);

            TypeDescriptor.AddProvider(provider, type);
        }