Hello there, 

I have got this scenario and I am seeking advice to preform it in the best way. 

In a form there are some details that user should create or select them in an other form filling the main form. I want to open this sub forms in a popup, load the associated user control in that popup and let the users do their job and when they submitted the popup be closed and relative part in the main form be updated. 

what is the best way to do that .

example :

Name:         ------------
Last Name:-----------     
Category     *******
                     *******
                     [Add more]

So Ideally when users click on [Add more] they can make or select a category and when they select the selected category added to this list without refreshing the page.  I have the form for selecting or creating new categories as a usercontrol. 

thank you in advance :)  

thanks Clint 

thanks for the popup tip, do you know where I can get some updated  info about integration of Ajax into my module ?