Can't find the using Core.NavigationElements;

Oct 29, 2012 at 10:02 AM

Hello!

How can I find the 

using Core.NavigationElements;  ??

Help me please! I hope for your help, because I beginner.
And another question: 
I have very much coordinates. About 1 000 000. I need to draw a path to these coordinates.
Select any color way on these coordinates. Is it possible to do this is to map faster?
I would be very grateful for any help!