using System.Web.Security.AntiXss;
public static void Main()
var url= "https://docs.microsoft.com/en-us/dotnet/api/system.web.security.antixss.antixssencoder.urlencode?view=netframework-4.5#System_Web_Security_AntiXss_AntiXssEncoder_UrlEncode_System_String_";
var encoded = AntiXssEncoder.UrlEncode(url);
Console.WriteLine(encoded);
Console.WriteLine("Hello World");