How to delete last character in a string in C#?

Question

Building a string for post request in the following way,

  var itemsToAdd = sl.SelProds.ToList();
  if (sl.SelProds.Count() != 0)
  {
      foreach (var item         


        

Answer 1

It's better if you use string.Join.

 class Product
 {
   public int ProductID { get; set; }
 }
 static void Main(string[] args)
 {
   List products = new List()
      {   
         new Product { ProductID = 1 },
         new Product { ProductID = 2 },
         new Product { ProductID = 3 }
      };
   string theURL = string.Join("&", products.Select(p => string.Format("productID={0}", p.ProductID)));
   Console.WriteLine(theURL);
 }