一对多关系不编辑子表

public class Class1
{
    public Guid Class1ID { get; set; }
    public string class1string { get; set; }
    public virtual Class2 Class2 { get; set; }
}

public class Class2
{
    public Guid Class2ID { get; set; }
    public string class2string { get; set; }
}

// POST: Class1/Edit/5
    // To protect from overposting attacks, please enable the specific properties you want to bind to, for 
    // more details see https://go.microsoft.com/fwlink/?LinkId=317598.
    [HttpPost]
    [ValidateAntiForgeryToken]
    public async Task<IActionResult> Edit(Guid id, [Bind("Class1ID,Class2,class1string")] Class1 class1)
    {
        if (id != class1.Class1ID)
        {
            return NotFound();
        }

        if (ModelState.IsValid)
        {
            try
            {
                _context.Update(class1);
                await _context.SaveChangesAsync();
            }
            catch (DbUpdateConcurrencyException)
            {
                if (!Class1Exists(class1.Class1ID))
                {
                    return NotFound();
                }
                else
                {
                    throw;
                }
            }
            return RedirectToAction("Index");
        }
        return View(class1);
    }
public class Class1
{
    public Guid Class1ID