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Entity Framework 6: Lazy loading doesn't work when classes are internal


Entity Framework 6: Lazy loading doesn't work when classes are internal

By : vp_reloaded
Date : November 22 2020, 11:17 AM
fixed the issue. Will look into that further The entity must be public, it's a requirement for Entity Framework to be able to inherit from it and create a proxy at runtime (that adds all the EF internal stuff in the overridden virtual navigation properties).
See Requirements for Creating POCO Proxies on MSDN.
code :


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Lazy loading not working for POCO classes in Entity Framework

Lazy loading not working for POCO classes in Entity Framework


By : Prozach
Date : March 29 2020, 07:55 AM
With these it helps You are disposing your ObjectContext. This is what is preventing you from using LazyLoading. If you need LazyLoading, the class containing GetFilter should create an ObjectContext when it is created, implement IDisposable, and dispose of the ObjectContext when it is disposed.
Entity Framework Lazy Loading Does Not Work

Entity Framework Lazy Loading Does Not Work


By : Sepelka
Date : March 29 2020, 07:55 AM
this one helps. Instead of using new users() try testEnt.users.Create(). The difference is that the object returned will be a proxy class which is needed for lazy loading of navigation properties.
As an aisde, doing the opposite and setting the language navigation property itself and not the LangRef foreign key value should actually correctly set the LangRef property when you call SaveChanges().
Entity Framework 6 Lazy Loading doesn't work

Entity Framework 6 Lazy Loading doesn't work


By : Josh Lake
Date : March 29 2020, 07:55 AM
may help you . You didn't follow the rules to enable Entity framework to create proxies (required for lazy loading), which needs public access:
Entity Framework 6 : lazy loading doesn't work

Entity Framework 6 : lazy loading doesn't work


By : Clara Weng
Date : March 29 2020, 07:55 AM
this one helps. A couple of things:
When you state: doesn't work, you are getting an Order back, but the $ figure is 0.0 when you expect a different value? You appear have 2x order records, but based on what is coming back you're expecting a non-zero figure, are both records non-zero? In your debug view, expand the "Orders" in the pop-up context menu, this will reveal what order details EF has loaded.
code :
using (var context = new EfContext())
{
  var customer = context.Customers
    .Include(c => c.Orders)
    .Single(c => c.CustomerId = customerId);
  // Do stuff...
}
using (var context = new EfContext())
{
  var data = context.Customers.Where(c => c.CustomerId = customerId)
    .Select(c => new { Customer = c, FirstOrder = c.Orders.OrderBy(o => o.OrderDate).FirstOrDefault()})
    .Single();
  // Do Stuff...
}
When entity is internal, lazy loading does not work

When entity is internal, lazy loading does not work


By : Anand Vuppu
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further I'm afraid that is not possible, public classes is a requirement for EF to create proxy classes and to enable lazy loading. Take a look this msdn page for more info:
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