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

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

Answer 3

You could use the IIS URL Rewrite Module for this. When installed you can create a rule in the Web.Config System.Webserver node that rewrites the url so the string can be processed in code behind as a QueryString.
<rewrite>
<rules>
<rule name="getString" stopProcessing="true">
<match url="^([a-z0-9- /]+)$" ignoreCase="true"/>
<action type="Rewrite" url="getstring.aspx?string={R:1}"/>
</rule>
</rules>
</rewrite>
Then you can simply get the string value with this:
string getString = Request.QueryString["string"];
But his will create a problem if there are other pages than getstring.aspx than need to be accessed since every request is now being send to getstring.aspx. Maybe it's better to use a prefix so that you can identify the request URL as being one that has a string.
http://foo.com/getstring/bike stand
<match url="^getstring/([a-z0-9- /]+)$" ignoreCase="true"/>