Well, seeing how it's been a month, I imagine you either found the answer somewhere else...or you just figured out how to get by without the feature.
I also have been curious about this and I googled and found the answer here:
http://www.syncfusion.com/FAQ/Window...95c.aspx#q825q
use the WindowState property of the form as below:
Form1.WindowState = FormWindowState.Maximized