C# program is upper-casing wrong letters. I want the program to uppercase the fi

Question

C# program is upper-casing wrong letters.

I want the program to uppercase the first letter of each word that a user enters. My program is below, and it is uppercasing all the letters that are not first and leaving the first lower-case. I do not know what is wrong. Please test the solution

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

namespace ConsoleApplication41
{
class Program

{

static void Main(string[] args)

{

Console.WriteLine("Enter a String : ");

var inputSentence = Console.ReadLine();

var regExpr = new System.Text.RegularExpressions.Regex(@"(?<=w)w");

var newString = regExpr.Replace(inputSentence, new MatchEvaluator(m => m.Value.ToUpperInvariant()));

Console.WriteLine(newString);

}

}
}

Explanation / Answer

The Program written was completely correct, but there was just a problem with regular expression specified.

Change the regular expression as below:

var regExpr = new System.Text.RegularExpressions.Regex(@"(^w)|(sw)");

Regular expression specified in this modified line searches for begining of the string denoted by '^' and searchs for any alpha numberic character denoted by 'w' (or) any alphanumeric character preceeded by whitespace denoted by 'sw'

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