public DataTable GetAll()
 {
     try
     {
         BlogPostDAL blogPostDAL = new BlogPostDAL();
         return(blogPostDAL.GetAll());
     }
     catch (Exception)
     {
         throw;
     }
 }
 public DataTable GetById(int id)
 {
     try
     {
         BlogPostDAL blogPostDAL = new BlogPostDAL();
         return(blogPostDAL.GetById(id));
     }
     catch (Exception)
     {
         throw;
     }
 }
 public bool Delete(BlogPosts blogPost)
 {
     try
     {
         BlogPostDAL blogPostDAL = new BlogPostDAL();
         return(blogPostDAL.Delete(blogPost));
     }
     catch (Exception)
     {
         throw;
     }
 }
        public bool Save(BlogPosts blogPost)
        {
            try
            {
                BlogPostDAL blogPostDAL = new BlogPostDAL();

                if (IsTitleExist(blogPost))
                {
                    throw new Exception("Title already exist.");
                }
                else
                {
                    return(blogPostDAL.Save(blogPost));
                }
            }
            catch (Exception)
            {
                throw;
            }
        }