Routing URLs in Web forms application

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Hi All,

How to write easy Routing URLs, how to cal route from global.asax

my global.asax code like is

C#

protected void Application_Start(object sender, EventArgs e)
{

    // Add Routes.
    RegisterRoutes(RouteTable.Routes);

}
void RegisterRoutes(RouteCollection routes)
{
    routes.MapPageRoute(
        "HomeRoute",
        "Home",
        "~/Employer/Employer_Login.aspx"
    );

}

how to cal the Routes in Employer_login.aspx page

please help me.

Posted 7-Feb-13 5:13am

Santhosh23

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Michiel du Toit · Answer 1 · 2013-02-07T21:18:00

You can rewrite/route the URL before it actually hits a page, to do this add your routing code in global.asax's

protected void Application_BeginRequest(object sender, EventArgs e)

event. If you are already on the page (eg Employer_login.aspx) you can use

Response.Redirect("newurl")

To redirect a URL in Application_BeginRequest you can use:

Context.RewritePath("new URL comes here", true);

to send someone to a different URL.

and Request.Url to check the URL the user entered, get the QueryString, etc.

Here's a simple example that will add .aspx to any URL entered where there is an .aspx file at the location but the URL was specified without it:
(eg user entered yourwebsite/default and you wish to change it to yourwebsite/default.aspx):

C#

//The physical file that has been requested.
var requestedfile = Server.MapPath(Request.Url.AbsolutePath);
//The extension of the file.
var filetype = Path.GetExtension(requestedfile).ToLower();
//The query parameters as the sole parameters of the url
var incomingparamsdir = incomingparams.Length > 0 ? "?" + incomingparams : "";

if ((filetype == "." || filetype == "") && requestedfile.Length > 0)
{
    filetype = ".aspx";
    requestedfile = Path.ChangeExtension(requestedfile, ".aspx");
    if (File.Exists(requestedfile))
    {
        Context.RewritePath(Path.ChangeExtension(Request.Url.AbsolutePath, ".aspx") + incomingparamsdir);
        return;
    }
}

Hope this solves your issue.