WebClient.DownloadString result is not match with Browser result 2

Question

The following code:

WebClient wc = new WebClient();
wc.Encoding = Encoding.UTF8;
string Url = "http://www.tsetmc.com/t         


        

Answer 1

public class WC : WebClient
{
    protected override WebRequest GetWebRequest(Uri url)
    {
        var request = base.GetWebRequest(url) as HttpWebRequest;
        request.AutomaticDecompression = DecompressionMethods.GZip;

        return request;
    }
}

Usage:

var url = "http://www.tsetmc.com/tsev2/data/instinfodata.aspx?i=59266699437480384&c=64";
var wc = new WC();
wc.Encoding = Encoding.UTF8;
var result = wc.DownloadString(url);

Answer 2

In Linqpad you can run the below code, variation from Webclient. As you can see from the picture, its due to the Gzip compression which browser automatically handles.

async void Main()
{
    using (var handler = new HttpClientHandler())
    {
        handler.AutomaticDecompression = DecompressionMethods.GZip;
        using (HttpClient client = new HttpClient(handler))
        {
            var result = await client.GetStringAsync("http://www.tsetmc.com/tsev2/data/instinfodata.aspx?i=59266699437480384&c=64");
            result.Dump();
        }
    }
}

Answer 3

That's not an encoding problem, i think it relates with compression, gzip in this case. Read Uncompressing gzip response from WebClient. That should fix your problem.