What is the difference between Convert.ToInt32 and (int)?

Question

The following code throws an compile-time error like

Cannot convert type \'string\' to \'int\'

string name = Session[\"name1\"].ToString();
int i = (         


        

Answer 1

This is already discussed but I want to share a dotnetfiddle.

If you are dealing with arithmetic operations and using float, decimal, double and so on, you should better use Convert.ToInt32().

using System;

public class Program
{
  public static void Main()
  {
    double cost = 49.501;
    Console.WriteLine(Convert.ToInt32(cost));
    Console.WriteLine((int)cost);
  }
}

Output

50
49

https://dotnetfiddle.net/m3ddDQ