Finding Total Days Different From Two Date Using TimeSpan in C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
namespace Rextester
{
public class Program
{
public static void Main(string[] args)
{
   string strFromDate="01/01/2016";
   string strToDate="31/01/2016";
   DateTime frmDate=Convert.ToDateTime(strFromDate);
   DateTime toDate=Convert.ToDateTime(strToDate);
   TimeSpan DateDiffDay;
   DateDiffDay=toDate-frmDate;
   double Days= DateDiffDay.Days;
   Console.WriteLine("Total Day:{0}",Days);

}
}
}