Reading query-string in asp.net without specifying any page name

Question

How to read any strings in a aspx page.

example: http://foo.com/bike stand

I want to read/get the strings in a specified aspx page. expected page string is bike stand
expected page is getstring.aspx

Here i like to read the string and redirect to specified page.
Note: I like to do this in just ASP.Net (Not with MVC)

Answer 1

You can probably solve this using a Route. I have made a simple demo, that you can try out in just a couple of minutes. In the Global.asax.cs file, add this method:

void RegisterRoutes(RouteCollection routes)
{
    routes.MapPageRoute("Products",
        "Products/{product}", "~/getstring.aspx",
        false,
        new RouteValueDictionary { { "product", "NoneSelected" } }
    );
}

In the same file, in the already existing void Application_Start(object sender, EventArgs e) method, add RegisterRoutes(RouteTable.Routes);:

void Application_Start(object sender, EventArgs e)
{
    RegisterRoutes(RouteTable.Routes);
}

With this, you have configured a Route which will take a request like this:

http://foo.com/Products/bike%20stand

and map it to getstring.aspx. Note that I have url encoded the space in the url.

In getstring.aspx you can access the value ("bike stand") like this:

protected void Page_Load(object sender, EventArgs e)
{
    string routeValue = "";
    if (RouteData.Values.ContainsKey("product"))
        routeValue = RouteData.Values["product"].ToString();

    //routeValue now contains "bike stand"

    SelectedProduct.Text = routeValue;
}

I have set up the Route in this sample on the path "Products" beneath the application folder. I don't recommend that you setup your route directly under the application folder as in the question. You can do it though if you absolutely want to:

void RegisterRoutes(RouteCollection routes)
{
    routes.MapPageRoute("Products",
        "{product}", "~/getstring.aspx",
        false,
        new RouteValueDictionary { { "product", "NoneSelected" } }
    );
}

Answer 2

It may not the best way to fulfill your need but if you want to get the string part from URL you may use URI Segments.

HttpContext.Current.Request.Url.Segments.Select(x=>x.TrimEnd‌​('/')).Skip(2).ToArr‌​ay();

OR

new Uri("http://www.someurl.com/foo/xyz/index.htm#extra_text").Segments

Results: [ "/", "foo/", "xyz/", "index.html" ]

After reading string you can do whatever you want like redirection etc