Exemplo n.º 1
0
        /// <summary>
        /// Intantiates a new instance of <see cref="Property"/>.
        /// </summary>
        /// <param name="serviceProvider">The <see cref="IServiceProvider"/> used to obtain services.  This is most-often used when the property appears in an editor.</param>
        /// <param name="component">The <see cref="object"/> that contains the property described by <paramref name="declaringProperty"/>.</param>
        /// <param name="declaringProperty">The description of the property owned by <paramref name="component"/>.</param>
        /// <param name="additionalAttributes">Additional, or overridden, meta-data attributes for the <paramref name="declaringProperty"/></param>
        public Property(IServiceProvider serviceProvider, object component, PropertyDescriptor declaringProperty, IEnumerable<Attribute> additionalAttributes)
        {
            this.serviceProvider = serviceProvider;
            this.component = component;
            this.declaringProperty = declaringProperty;

            if (declaringProperty != null)
            {
                metadata = new MetadataCollection(declaringProperty.Attributes.OfType<Attribute>());
                metadata.Override(additionalAttributes);
            }
            else
            {
                metadata = new MetadataCollection(additionalAttributes);
            }

            Initialize(declaringProperty, metadata.Attributes);
        }
 /// <summary>
 /// Creates a new set of <see cref="Attribute"/> instances using <see cref="MetadataCollection"/> to
 /// combine a base set and <see cref="Attribute"/> instances and an override set of <see cref="Attribute"/> instances.
 /// </summary>
 /// <param name="baseSource">The base set of attributes that may be overridden.</param>
 /// <param name="overriddenSource">The overrideent set of attributes.</param>
 /// <returns>The resultant set of <see cref="Attribute"/> instances with overridden values applied.</returns>
 public static IEnumerable<Attribute> CombineAttributes(IEnumerable<Attribute> baseSource, IEnumerable<Attribute> overriddenSource)
 {
     MetadataCollection collection = new MetadataCollection(baseSource);
     collection.Override(overriddenSource);
     return collection.Attributes;
 }