Mega Code Archive
0585 Uri
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Instances of Uri have read-only properties.
To modify an existing Uri, instantiate a UriBuilder object-this has writable properties and can be converted back via its Uri property.
Uri also provides methods for comparing and subtracting paths:
using System;
using System.Net;
using System.Linq;
using System.Text;
class Program
{
static void Main()
{
Uri info = new Uri("http://www.domain.com:80/info/");
Uri page = new Uri("http://www.domain.com/info/page.html");
Console.WriteLine(info.Host); // www.domain.com
Console.WriteLine(info.Port); // 80
Console.WriteLine(page.Port); // 80
Console.WriteLine(info.IsBaseOf(page)); // True
Uri relative = info.MakeRelativeUri (page);
Console.WriteLine (relative.IsAbsoluteUri); // False
}
}
The output:
www.domain.com
80
80
True
False
The following downloads and displays the code samples web page:
using System;
using System.Net;
using System.IO;
using System.Linq;
using System.Text;
class Program
{
static void Main()
{
WebRequest req = WebRequest.Create("http://www.google.com");
req.Proxy = null;
using (WebResponse res = req.GetResponse())
using (Stream s = res.GetResponseStream())
using (StreamReader sr = new StreamReader(s))
File.WriteAllText("code.html", sr.ReadToEnd());
System.Diagnostics.Process.Start("code.html");
}
}
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