public FileModel DeleteFile(int ArticleID, int FileID)
 {
     try
     {
         return(_context.DeleteFile(ArticleID, FileID));
     }
     catch (SqlException sqlException)
     {
         Console.WriteLine(sqlException);
         throw;
     }
     catch (InvalidCastException invalidCastException)
     {
         Console.WriteLine(invalidCastException);
         throw;
     }
 }