Remove .aspx From URL

Use Iframe....
Take One iframe in Your main page,In that give src of different pages when you open another page that will be opened in same url..

The Idea is open different pages in one iframe..
then url will be same...

Hope This Will Help You...
Shubh Coding:)

HI,

server.transfer("yoururl");

for example:

protected void Button1_Click(object sender, EventArgs e)
    {
        Server.Transfer("2.aspx?id=3");
    }

and in the form 2.aspx you can get your parameter like this:

protected void Page_Load(object sender, EventArgs e)
    {
       Label1.Text=Request.QueryString["id"];
    }

Happy Coading/...... :)

Create A Cloaking 'Frame' Page

Remove HTML or ASPX Extension

Remove File Extention from URLs

How to remove file extension from website address?