Trực tuyến Hạ Trường hợp chuyển đổi

I am developing a product maintainer, which I want when adding products, I equate the characters with a capital letter, for example if there is a ball product and the user wants to introduce me the Ball product (or BALL), the maintainer is layers to differentiate and do not allow to add the product .... since it already exists .... there is some function that discriminates the uppercase of the lowercase and compare me characters? or should I use LINQ? ... any help for me?

  // POST: Productoss/Create        [HttpPost]        [ValidateAntiForgeryToken]        public ActionResult Create([Bind(Include = "Kn_CodigoProducto,v_Nombre,v_Estado,n_StockCritico,Kn_CodigoFamilia,Kn_CodigoUnidad")] Productos productos)        {            if (ModelState.IsValid)            {                db.Productos.Add(productos);                db.SaveChanges();                return RedirectToAction("Index");            }            ViewBag.Kn_CodigoFamilia = new SelectList(db.Familias, "Kn_CodigoFamilia", "v_Nombre", productos.Kn_CodigoFamilia);            ViewBag.Kn_CodigoUnidad = new SelectList(db.Unidads, "Kn_CodigoUnidad", "v_Nombre", productos.Kn_CodigoUnidad);            return View(productos);        }

How can I separate firstname and surname from a string like this:

Pietro DE GIOVANNI

(Pietro being the firstname and DE GIOVANNI the surname)

I used to do it with an explode() on the spaces, but obviously it doesn't work on a person like that.

Thanks in advance.

My program is supposed to take an input in form of a string and split into to strings, one with all the lower case letters, underscores and dots. The other one with all the upper cases, the pipes and the spaces. I am not supposed to use (for function)

def split_rec (letters):    uppers = ""    lowers = ""    if letters[0].isupper() or letters[0] == "|" or letters[0].isspace():        uppers += letters[0] + split_rec (letters[1:])    elif letters[0].islower() or letters[0] == "_" or letters[0] == ".":        lowers += letters[0] + split_rec (letters[1:])    elif not letters:        return lowers, uppers

Can you please tell me more about the error I'm getting?

if letters[0].isupper() or letters[0] == "|" or letters[0].isspace(): IndexError: string index out of range

I'm converting a bunch of (Progress) programs for use on linux (previously used on Windows) and I'm looking for a way to grep for program names with both uppercase and lowercase letters, such as "skip_xref.I" or "NO_dt2.i". How can I achieve this?

How could I downcase a non-English string in Ruby on Rails 3 ?

str = "Привет"    # Russian puts str[0].ord   # => 1055str.downcase!puts str[0].ord   # => 1055 (Should be 1087)

I want it to work in Ruby 1.8.7 as well as Ruby 1.9.2.