remove last character from string c#

string Name = "Teste,"
string ReturnName = "";
ReturnName = Name.Remove(Name.Length - 1);

myString = myString.Substring(0, myString.Length-3);

public static string ReplaceLastOccurrence(string Source, string Find, string Replace)
{
        int place = Source.LastIndexOf(Find);

        if(place == -1)
           return Source;

        string result = Source.Remove(place, Find.Length).Insert(place, Replace);
        return result;
}

Console.Write("Abc");
Console.Write("\b");
Console.Write("Def");

using System;
class RemoveCharacter {
  static void Main() {
    string s = "king";
    string result = s.Remove(s.Length-1);
    Console.WriteLine(result);
  }
}