Put thousands separator in MVC-CodePudding

I am sending via ViewData values to my view like this.

Controller

 public List<string> ListarTarjetas()
 {
       OpexDB db = new OpexDB();           

       List<string> Tarjetas = new List<string>();

        using (db)
    {
          var listTarjetasInformativas = db.SP_TARJETASINFORMATIVAS();
                
          foreach(var item in listTarjetasInformativas)
      {
             Tarjetas.Add(item.NOMBRE);
             Tarjetas.Add(item.MONTO.ToString());
           }
        }
            return Tarjetas;
 }

public ActionResult Index()
{
            var DatosTarjetas = ListarTarjetas();

            ViewData["PrimerNombre"] = DatosTarjetas[0];
            ViewData["PrimerMonto"] = String.Format(DatosTarjetas[1], new CultureInfo("es-HN"));

            return View();
}

Part of my razor view.

<div >
   <p>@ViewData["PrimerNombre"]</p>           

   <p>@ViewData["PrimerMonto"]</p>

   <div >
      <i ></i>
   </div>
</div>

Within my view, in the part of <p>@ViewData["PrimerMonto"]</p> this value 7218.19 is reflected, but I would like it to be reflected in this way, 7,218.19.

I have tried this way,

ViewData["PrimerMonto"] = String.Format(DatosTarjetas[1], new CultureInfo("es-HN"));

and in other ways too. But I don't get any change.

Thank you for any help you can receive.

CodePudding user response：

You can format it just as a number or as currency, but if it's a string in your view data, you need to convert it to a number. See also https://learn.microsoft.com/en-us/dotnet/standard/base-types/standard-numeric-format-strings

[TestMethod]
        public void TestNumberFormat()
        {
            string numberStringValue = "7891.12";
            double numberNumericValue = double.Parse(numberStringValue);

            string formattedValueWithSymbol = string.Format(new CultureInfo("es-HN"), "{0:c}", numberNumericValue);
            string formattedValue = string.Format("{0:N}", numberNumericValue);

            Console.WriteLine(formattedValueWithSymbol);
            Console.WriteLine(formattedValue);
        }

The output of this will be

Standard Output: 
L7,891.12
7,891.12