/// <summary>Adds a specified category to this collection.</summary>
        /// <param name="categoryName">Name of the category.</param>
        /// <param name="categoryDescription">Description of the category.</param>
        /// <param name="categoryDateFrom">From date of the category.</param>
        /// <param name="categoryDateTo">To date of the category.</param>
        /// <param name="categoryPhotos">Photos of the category.</param>
        /// <returns>The zero-based index of the added item.</returns>
        private int Add(string categoryName, string categoryDescription, string categoryDateFrom, string categoryDateTo, RssPhotoAlbumCategoryPhotos categoryPhotos)
        {
            var categoryDataRange = new RssModuleItemCollection();

            categoryDataRange.Add(new RssModuleItem("from", true, RssDefault.Check(categoryDateFrom)));
            categoryDataRange.Add(new RssModuleItem("to", true, RssDefault.Check(categoryDateTo)));

            base.Add(new RssModuleItem("categoryName", true, RssDefault.Check(categoryName)));
            base.Add(new RssModuleItem("categoryDescription", true, RssDefault.Check(categoryDescription)));
            base.Add(new RssModuleItem("categoryDateRange", true, "", categoryDataRange));
            foreach (RssPhotoAlbumCategoryPhoto categoryPhoto in categoryPhotos)
            {
                base.Add(new RssModuleItem("categoryPhoto", true, "", categoryPhoto));
            }

            return(-1);
        }
 /// <summary>Initialize a new instance of the RssPhotoAlbumItem class</summary>
 /// <param name="categoryName">Name of the category.</param>
 /// <param name="categoryDescription">Description of the category.</param>
 /// <param name="categoryDateFrom">From date of the category.</param>
 /// <param name="categoryDateTo">To date of the category.</param>
 /// <param name="categoryPhotos">Photos of the category.</param>
 public RssPhotoAlbumCategory(string categoryName, string categoryDescription, string categoryDateFrom, string categoryDateTo, RssPhotoAlbumCategoryPhotos categoryPhotos)
 {
     Add(categoryName, categoryDescription, categoryDateFrom, categoryDateTo, categoryPhotos);
 }