parsowanie daty , C#

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//Title of this code
//Rextester.Program.Main is the entry point for your code. Don't change it.

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

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
            //Your code goes here
        string formatString = "dd.MM.yyyy";
        string sampleData = "01.06.2015";
        DateTime d;
        DateTime.TryParseExact(sampleData, formatString, null, System.Globalization.DateTimeStyles.None, out d);
        Console.WriteLine(d);
            
            
        formatString = "dd.MM.yyyy";
        sampleData = "06.2015";
        DateTime.TryParseExact(sampleData, formatString, null, System.Globalization.DateTimeStyles.None, out d);
        Console.WriteLine(d);
            
        
           string t1 = "data waż.06.2015";            
           string t2 = "data waż.06.2015 5907377130604";
           string t3 = "data waż.20.06.2015 5907377130604 yv46 refxer erfr";
            
                Regex rg = new Regex(@"^data waż\.((\d+)\.*\d+\.\d+)(\s+([^\s]*)){0,1}");
                string t = t3;
                if(rg.Match(t).Success)
                {
                        Console.WriteLine(rg.Match(t).Groups[1].Value);
                        Console.WriteLine(rg.Match(t).Groups[4].Value);
                }

int a=1;
            int.TryParse("x",out a);
            Console.WriteLine(a);
                 
        }
    }
}

Show compiler warnings [ + ] Show input
Compilation time: 0.44 sec, absolute running time: 0.33 sec, cpu time: 0.3 sec, average memory usage: 26 Mb, average nr of threads: 5