carloscds

string str = "Exemplo em C# 8";

string palavra = str[^4..^0];
Console.WriteLine(palavra);

string final = str[^4..];
Console.WriteLine(final);

string inicio = str[..7];
Console.WriteLine(inicio);

carloscds

static void Main(string[] args)
{
   string str = "Exemplo em C# 8";

   foreach(var s in str[^4..str.Length])
   {
      Console.Write(s);
   }
   Console.WriteLine("");
}

carloscds

static void Main(string[] args)
{
   int[] num = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };

   foreach(int i in num[1..5])
   {
      Console.WriteLine(i);
   }
}

carloscds

static void Main(string[] args)
{
   int[] num = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };

   foreach(int i in num)
   {
      Console.WriteLine(i);
   }
}

carloscds

var db = new Contexto();

var dados1 = new Dados(db);
var cat = dados1.GetNoTracking(1);
Console.WriteLine(cat.CategoryName);

carloscds

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace EFAsNoTracking
{
    public class Dados
    {

carloscds

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace EFAsNoTracking
{
    class Program
    {

carloscds

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace EFAsNoTracking
{
    class Program
    {

carloscds

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace EFAsNoTracking
{
    public class Dados
    {

carloscds

using System;
using System.Collections.Generic;
using System.Data.Entity;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace EFAsNoTracking
{
    public class Contexto : DbContext