A frequently used Delphi class is TStringList. The translation of the defining code in System.Classes needs little manual post-processing. The example from

Delphi Basics TStringList

compiles and works without manual post-processing. (Again, the original code has been slightly modified for the testing purpose.)

using System.Classes;
using static System.Classes.ClassesInterface;
using static dbsc_tstringlist.dbsc_tstringlistInterface;
using static dbsc_tstringlist.dbsc_tstringlistImplementation;
using System;
using static System.SystemInterface;

namespace dbsc_tstringlist
{

public class dbsc_tstringlistInterface
{

//http://www.delphibasics.co.uk/RTL.asp?Name=TStringList
public static bool TStringListTest()
{
  bool result = false;
  result = true;
  result = result && TStringListTest1();
  result = result && TStringListTest2();
  result = result && TStringListTest3();
  return result;
}

} // class dbsc_tstringlistInterface

public class dbsc_tstringlistImplementation
{

public static bool TStringListTest1()
{
  bool result = false;
  TStringList animals = null;            // Define our string list variable
  int i = 0;
  result = true;
  // Define a string list object, and point our variable at it
  animals = new TStringList();

  // Now add some names to our list
  animals.Add("Cat");
  animals.Add("Mouse");
  animals.Add("Giraffe");

  // Now display these animals
  // for i := 0 to animals.Count-1 do
  //  ShowMessage(animals[i]);  // animals[i] equates to animals.Strings[i]
  result = result && (animals[0] == "Cat");
  result = result && (animals[1] == "Mouse");
  result = result && (animals[2] == "Giraffe");

  // Free up the list object
  animals = null;
  return result;
}

public static bool TStringListTest2()
{
  bool result = false;
  TStringList Names = null;            // Define our string list variable
  string ageStr = string.Empty;
  int i = 0;
  result = true;
  // Define a string list object, and point our variable at it
  Names = new TStringList();

  // Now add some names to our list
  Names.CommaText = "Neil=45, Brian=63, Jim=22";

  // And now find Brian's age
  ageStr = Names.ReadPropertyValues("Brian");

  // Display this value
  // ShowMessage('Brians age = '+ageStr);
  result = result && (ageStr == "63");

  // Now display all name and age pair values
  for(i = 0; i <= Names.Count - 1; i++)
  {
     //ShowMessage(names.Names[i]+' is '+names.ValueFromIndex[i]);
    if(i == 0)
      result = result && (new PChar(Names.ReadPropertyNames(i)).ToString() == "Neil") && (new PChar(Names.ReadPropertyValueFromIndex(i)).ToString() == "45");
    if(i == 1)
      result = result && (new PChar(Names.ReadPropertyNames(i)).ToString() == "Brian") && (new PChar(Names.ReadPropertyValueFromIndex(i)).ToString() == "63");
    if(i == 2)
      result = result && (new PChar(Names.ReadPropertyNames(i)).ToString() == "Jim") && (new PChar(Names.ReadPropertyValueFromIndex(i)).ToString() == "22");
  }

  // Free up the list object
  Names = null;
  return result;
}

public static bool TStringListTest3()
{
  bool result = false;
  TStringList cars = null;            // Define our string list variable
  int i = 0;
  result = true;
  // Define a string list object, and point our variable at it
  cars = new TStringList();

  // Now add some cars to our list - using the DelimitedText property
  // with overriden control variables
  cars.Delimiter = ' ';        // Each list item will be blank separated
  cars.QuoteChar = '|';        // And each item will be quoted with |'s
  cars.DelimitedText = "|Honda Jazz| |Ford Mondeo| |Jaguar \"E-type\"|";

  // Now display these cars
//  for i := 0 to cars.Count-1 do
//    ShowMessage(cars[i]);       // cars[i] equates to cars.Strings[i]
  result = result && (cars[0] == "Honda Jazz");
  result = result && (cars[1] == "Ford Mondeo");
  result = result && (cars[2] == "Jaguar \"E-type\"");

  // Free up the list object
  cars = null;
  return result;
}

} // class dbsc_tstringlistImplementation

}  // namespace dbsc_tstringlist