In ASP.NET, you want to get extra path of URL which accessed WebForm.

Example of extra path

For

If you access the URL below.
is extra path.

How to get extra path

Use PathInfo property in HttpRequest class to get extra path.

Example code

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WebAppPathDemo
{
  public partial class WebForm : System.Web.UI.Page
  {
    protected void Page_Load(object sender, EventArgs e)
    {
      Literal1.Text = "";
      Literal1.Text += string.Format("Request.PathInfo: {0:s}<br/>", Request.PathInfo);
    }
  }
}

Execution result

http://app.ipentec.com/webapp/imageeditor/default.aspx/draw/bitmap Visit the above URL. appears on the screen.