Better way to design larger webforms

Hello,
I have been working with asp.net webforms designed in 2.0 - 3.5 framework for a while. For smaller forms 10 or less fields I just design a gridview with a footer template that allows users to create and edit records. For 10+ fields forms I design a read only and editable form and toggle the display based upon their action or sometimes use the wizzard.  We have now moved on to 4.X framework and I was wondering if there is a better way to design a larger form with 10+ fields where I don't have to design 2 forms one for reading and one for creating/editing? Just trying to figure out new ways to upgrade my skills. If someone has a website with examples of larger forms or ideas please share.
Thanks John