How do I access 2 DBContext in one Razor page

BattlFrog - thank you for you response. It wasn't exactly what I was looking for but it did put me on a better Gooogle Path. How I solved my issue was by the use of "Dependency Injection". I simply added the second DBContext to the contructor of the PageModel. Then in my OnPostAsync() I just had to reference the DBContext. This worked for me, but as I am only learning C#, ASP.Net Core and Razor Pages, this may not be the best approach. Please correct me if I am wrong.

    public class IndexModel : PageModel
    {
        DBContext1 _context1;
        DBContext2 _context2;

        public IndexModel(DBContext1 context1, DBContext2 context2)
        {
            _context1 = context1;
            _context2 = context2;
        }

        public async Task<IActionResult> OnPostAsync()
        {
            IList<ClassName> listName = await _context2.ObjectName.ToListAsync();
            // do some stuff here
            await _context1.SaveChangesAsync();
        }
    }