Need help with NameValueCollection

Question

I want to save a NameValueCollection that can be used later in my winForm Application.  The thing is,  I want to user to be able to specify the name of the NVC and then it will save each name and value within that user specified NVC.  Then I'll store the name that they gave the NVC into a listBox and if they want to edit anything later, they can just select the name in the listBox and it will show all of the names and values within that NVC. 
I know how to do everything except, allowing the user to name the NVC and I don't know how to have access to it later.