how does Request.QueryString work?

Question

I have a code example like this :

 location.href = location.href + \"/Edit?pID=\" + hTable.getObj().ID; ; //aspx    
 parID = Request.QueryString[\"pID\"];          


        

Answer 1

The QueryString collection is used to retrieve the variable values in the HTTP query string.

The HTTP query string is specified by the values following the question mark (?), like this:

Link with a query string

The line above generates a variable named txt with the value "this is a query string test".

Query strings are also generated by form submission, or by a user typing a query into the address bar of the browser.

And see this sample : http://www.codeproject.com/Articles/5876/Passing-variables-between-pages-using-QueryString

refer this : http://www.dotnetperls.com/querystring

you can collect More details in google .