Property auf Attribute prüfen Property.HasAttribute

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    /// Determines whether the specified property has given attribute.
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="property">The property.</param>
        /// <param name="inherit">if set to <c>true</c> baseclasses will be also scanned.</param>
        /// <returns>
        /// 	<c>true</c> if the specified property has the attribute; otherwise, <c>false</c>.
        /// </returns>
        public static bool HasAttribute<T>(this PropertyInfo property, bool inherit) where T : System.Attribute
        {
            Contract.Requires<ArgumentException>(property != null);

            bool exists = false;

            object[] list = property.GetCustomAttributes(typeof(T), inherit);
            exists = list != null && list.Length > 0;


            return exists;
        }