Does Entity Framework 4 not support property automatic lazy loading for model-first entities?

Question

All references that I find for lazy loading say it's possible but they all mention POCOs and that's it. I am using EF4 with the model-first methodology. In my model diagram I have a Project table and a UserObject table, with a 1 to many relationship between them. However, in code, when I have a valid UserObject and I attempt to get the project performing: Project prj = userobj.Project. Unfortunately, this doesn't work as it claims that UserObject.Project is null.

It seems like I have to explicitly load the Project object via calling UserObject.ProjectReference.Load() prior to calling .Project. Is there any way for this to occur automatically when I access the .Project property?

Ian Mercer · Accepted Answer · 2010-05-18 00:19:28Z

1

This should work just fine. Right click on the EDMX, click Properties, check that Lazy loading enabled is set for the EDMX.

answered May 18, 2010 at 0:19

Ian Mercer

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2 Comments

KallDrexx Over a year ago

I don't see a lazy loading option in any of the properties in the EDMX

KallDrexx Over a year ago

Found it. Apparently my domain model project was set for .net 3.5. Setting it to 4.0 enabled this option!

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