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The QueryString Collection

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:

<a href= "test.asp?txt=this is a query string test">Link with a query string</a>

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.

Syntax

Request.QueryString(variable)[(index)|.Count]

Examples

http://www.w3schools.com/test/names.asp?n=John&n=Susan

<%
for i=1 to Request.QueryString("n").Count 
  Response.Write(Request.QueryString("n")(i) & "<br />")
next
%>

John
Susan

http://www.w3schools.com/test/names.asp?name=John&age=30

name=John&age=30

Hi, <%=Request.QueryString("name")%>. 
Your age is <%= Request.QueryString("age")%>.

Hi, John. Your age is 30.

Query string is: <%=Request.QueryString%> 

Query string is: name=John&age=30

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