Set Up Hidden Parameter in Address Bar asp.net

Been looking for a way to encode the parameters in you address bar so every one can not see them?
I was there are lots of ways but i like simple and the application din not need to be that secure.

This is what i came up with

dim myid as int

myid =789456*210    ' this will go into the URL as 1658160


When the target page loads simple add in the load event

dim my as int

myint =  CInt(Request.QueryString("Datastring").ToString) \250

myint = 789456