LINQ to Entities error

jj.johnwilson · February 23rd, 2014, 07:22 AM

I'm currently using VS 2013 Express edition and SQL Server 2013 Express edition which I downloaded from official Microsoft website.

Well, here is my problem:

Everything was going fine till 14th chapter. But I came across this problem in 14th chapter first try it out section which was "A Simple LINQ to Entities Example" where I stumbled across this error which you mentioned in the book:

using (PlanetWroxEntities myEntities = new PlanetWroxEntities())

where PlanetWroxEntities is shown as error since it is defined in a namespace but not in the scope. And the ways to correct the error that you mentioned in the book is not working for me

when I click or ctrl+dot I see no suggestions and the only suggestion i get is 'generate a class for PlanetWroxEntites'.

I tried recreating the whole project again but I'm stuck at this point. I tried Imports PlantWroxModel method because the language which I'm using is VB and I get this error "Type "PlanetWroxEntities" not defined." What do I do now?

Reply me ASAP.

Imar · February 23rd, 2014, 03:29 PM

Hi there,

You may want to check out these threads:

Ch 14 generating entity model
Your Book and VS Versions

Cheers,

Imar

jj.johnwilson · February 24th, 2014, 05:13 AM

Changing the Code Generation Strategy from T4 to Legacy ObjectContext solved my problem!

Thank you.

AlanWheeler · February 24th, 2014, 01:15 PM

Cool!

I'm so happy my question actually helped someone else!

aw

jj.johnwilson · February 25th, 2014, 09:02 AM

The images in the gig pics section of planetwrox website are fixed and it is hard to see them properly. Is there any way to make them clickable so that they expand for a better viewing?

Thank you.

Imar · February 25th, 2014, 07:07 PM

Hi there,

Take a look at exercise 3 in Chapter 14, and the answer in Appendix B. It shows exactly what you are looking for.

Cheers,

Imar