hello,
i have a question about microsoft visual studio.net itself. i have almost done WroxJokeShop project, but when i click on the button, something like OrderAdminPage, there is an alert coming out:

cannot find the script: "/aspnet_client/system_web/1_0_3705_0/WebUIValidation.js". please try to put on this file or install through running "aspnt_regiis -c" again.

i know this alert is always coming out when there are some fields need to be validated.
could anyone tell me how to fix it out?
Thank you for your help!!!

if you look in winnt(or windows)/microsoft.net/framework/v[yourVersion]/ you will see aspnet_regiis.exe. Run this from the command line and it will build the js for you.

Thank you so much for your help! I know how to fix it out now.