return json collection from entity framework in asp.net mvc controller

Question

Asp.net MVC + EF: When I try to send back to client from controller, a collection that I retrieve from EF, I get an error on client. debug shows that the details are not sent appropriately. it does work fine when I copy the data into any other DTOs that I created and send them instead. just init another object and send it works. why ???

thanks !!!

It's usually because you have lazy loading enabled and the serializer tries to read a collection, whish should be lazy loaded, when the context no longer exists. — JotaBe
– JotaBe, Commented Jun 6, 2014 at 0:08

Community · Accepted Answer · 2017-05-23 10:32:25Z

0

so this is how it should work. reason: poco ef objects can't be serialize properly because of relationships conventions, and we use dto instead to return only required properties.

WebApi Controller returned value in Entity Framework 5 and MVC 4 project

hope it helps

edited May 23, 2017 at 10:32

CommunityBot

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answered Jun 5, 2014 at 19:03

aamir sajjad

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