String concatenation with or without .ToString()?

Question

I have a statement where a string is assigned in the following manner:

for (int i = 0; i < x; i++) 
{
    Foo.MyStringProperty = \"Bar_\" + i.ToString();
         


        

Answer 1

ToString is the default method used to write an object. So, if you use "i" or "i.ToString()" is the same thing.

If you know a little about operator overloading in c++ you can understand how "+" works in this case.

using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Text;


public class MainClass
{
    public static void Main()
    {
        int number = 10;
        string msg = "age is " + number + ".";
        msg += " great?";
        Console.WriteLine("msg: {0}", msg);

        String s1 = 10 + 5 + ": Two plus three is " + 2 + 3;
        String s2 = 10 + 5 + ": Two plus three is " + (2 + 3);
        Console.WriteLine("s1: {0}", s1);
        Console.WriteLine("s2: {0}", s2);    }

}

Result: msg: age is 10. great?

s1: 15: Two plus three is 23

s2: 15: Two plus three is 5