Waiting for asynchronous clarification

Question

I am trying to learn / understand more about async / await in C # and I would put myself in the rookie category, so all your comments / suggestions are welcome. I wrote a small test to better understand and clarify what to expect / asynchronously. My program freezes after calling "GetStringLength", I tried to read a few things, but it looks like I'm stuck, and I thought about accepting an expert opinion on what I might do wrong. Can you please direct me or point me in the right direction?

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

namespace AsyncPatterns
{
    class Program
    {
        static void Main(string[] args)
        {
            Program p = new Program();
            Task<string> url = p.FindLargtestWebPage(new Uri[]{new Uri("http://www.google.com"), 
                                                            new Uri("http://www.facebook.com"), 
                                                            new Uri("http://www.bing.com") });
            Console.WriteLine(url.Result);
            Console.ReadLine();
        }

        public async Task<string> FindLargtestWebPage(Uri[] uris)
        {
            string highCountUrl = string.Empty;
            int maxCount = 0;

            foreach (Uri uri in uris)
            {
                Console.WriteLine(string.Format("Processing {0}", uri.ToString()));
                var pageContent = await GetWebPageString(uri);
                var count = await GetStringLength(pageContent);
                if (count > maxCount)
                {
                    highCountUrl = uri.ToString();
                }
            }
            return highCountUrl;            
        }

        public async Task<int> GetStringLength(string pageData)
        {
            Console.WriteLine("Getting length");
            return await new Task<int>(() =>
            {
                return pageData.Length;
            });
        }

        public async Task<string> GetWebPageString(Uri uri)
        {
            WebClient webClient = new WebClient();
            Console.WriteLine("Downloading string");
            return await webClient.DownloadStringTaskAsync(uri.ToString());
        }

    }
}

Answer 1

The culprit for freezing is the following:

return await new Task<int>(() =>
{
    return pageData.Length;
});

Task , Task, . await GetStringLength, .

:

var result = new Task<int>(() =>
{
    return pageData.Length;
});

result.Start();

return result;

Task.Run, :

return Task.Run(() =>
{
    return pageData.Length;
});

Answer 2

Task async async . GetStringLength , :

public int GetStringLength(string pageData)
{
  Console.WriteLine("Getting length");
  return pageData.Length;
}

. async/await .