Examples: ASP Request Object QueryString Collection

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An iterator can be used to loop through all data values in a query string. For example, if the following request is sent:

http://NAMES.ASP?Q=Fred&Q=Sally

and NAMES.ASP contained the following script:

For Each item In Request.QueryString("Q")

   Response.Write item & "<BR>"

Next

NAMES.ASP would display the following:

Fred

Sally

Instead of using For Each, you can loop through data values in a query string using the Count variable:

For I = 1 To Request.QueryString("Q").Count

Response.Write Request.QueryString("Q")(I) & "<BR>"

Next

The following client request:

/scripts/directory-lookup.asp?name=fred&age=22

results in the QUERY_STRING value:

name=fred&age=22.

The QueryString collection would then contain two members, name and age.

Welcome, <%= Request.QueryString("name") %>.

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

This script displays:

"Welcome, Fred. Your age is 22."