I am trying to create a new list form in SharePoint 2010 that contains a field that is bound to the list item's value. For example, what if I want a "phone number" field on my "new list item" form where the field displays the format (xxx)xxx-xxxx? How do I do that? Once the phone number is filled out and the new list item is created, the list itself should show the phone number (preferably with the formatting intact).
Please give me an idea of where to start. I started to create a new one in SharePoint Designer 2010, and I see the tags that seem to represent the controls that are already bound to the new list item. So how do I bind my own control to the new list item? I don't care if this solution uses SharePoint Designer 2010 or Visual Studio 2010. I'm only looking for some idea of where to start... I don't understand how the list form is tied to the list.
I see that SPD 2010 has validation capabilities, but at some point in my project, I will need formatting AND validation.
Thanks for any ideas.