Question

On page one I would like to create an instance of a class as such:

    pOne = New pClass()
    xOne = New xClass(pOne)

Then on subsequent pages I would like to be able to use pOne and xOne. Since pOne and xOne are local to page one how can I use them in other pages?

Answer 1

You may use Session variable to store that object and use it in another page.

//Set the session
Session["p1"]=pOne;
Session["x1"]=xOne;

in second page, read the session

if(Session["p1"]!=null)
{
   // If object is present in session, Cast that to our class (PClass) type
   PClass objP1=(PClass) Session["p1"];  
   //Now you can use objP1
}
if(Session["x1"]!=null)
{
   XClass objx1=(XClass) Session["x1"];  
   //Now you can use objx1 
}

It is a good practice to always do a null check before accessing a variable

Here is the VB.NET version ( I hope this works, I don’t have much experience in VB.NET)

 // Set the Session
 Session("p1")=pOne
 Sesssion("x1")=xOne

In second page read the session,

 if Session("p1") IsNot Nothing Then
   Dim objP1 As pClass       
   objP1=CType(Session("p1"),pClass)   
   'Now you can use objP1
 End If

 if Session("x1") IsNot Nothing Then
   Dim objX1 As xClass
   objX1=CType(Session("x1"),xClass)
   'Now you can use objX1
 End If