public void StartEditCategory(CategoryItem categoryItem)
 {
     this.EditCategoryModel = new EditCategoryModel
     {
         EditTargetCategory = categoryItem,
         Categories = this.Categories
     };
 }
 public void StartEditFavorite(CategoryItem category, FavItem favItem)
 {
     this.EditFavoriteModel = new EditFavoriteModel
     {
         TargetCategory = category,
         EditTargetFavItem = favItem
     };
 }
 public void StartAddFavorite(CategoryItem category)
 {
     this.StartEditFavorite(category, new FavItem());
 }