c# - How solve if Console.WriteLine() doesn`t work

In that situation you can try this replacement:

System.Diagnostics.Debug.WriteLine( sDescription );

c# - How to download file from the web as string

Useful for example for .xml downloading. 

Old (now obsolete method):

string str = "";
#pragma warning disable SYSLIB0014 // Type or member is obsolete
using( var wc = new WebClient() )
{
  str = wc.DownloadString( this.URL );
}
#pragma warning restore SYSLIB0014 // Type or member is obsolete

New method:

string str = "";
HttpClient client = new HttpClient();
using ( HttpResponseMessage response = client.GetAsync( this.URL ).Result )
{
  using ( HttpContent content = response.Content )
  {
    str = content.ReadAsStringAsync().Result;
  }
}