Support for ASP.NET Dynamic Data Entities Website project template

Question

User-13302248 posted

I've used this template in VS 2013 with joyful ease, however, I've revisited this template in VS 2017 and doesn't work anymore. 

Error:

Unable to cast object of type 'System.Data.Entity.Core.Objects.ObjectContext' to type 'System.Data.Objects.ObjectContext'.

I used this article with VS 2013 [Go] and got it to work but not with VS 2017.

Will this continue to be supported? Anyone had any luck getting this to work VS 2017?

Answer 1

User283571144 posted

Hi rodchar,

I used this article with VS 2013 [Go] and got it to work but not with VS 2017.

Will this continue to be supported? Anyone had any luck getting this to work VS 2017?

According to this article, ASP.NET MVC 4 scaffolding does not support Entity Framework 6 or higher. Support of scaffolding of Entity Framework 6 is targeted for the next release of ASP.NET MVC.

Best Regards,

Brando

Answer 2

User-330204900 posted

Actually there is support for EF6 but not 7 you need a NuGet package to make it work, as the EndityDataSources it what causes the issues see Dynamic Data provider and EntityDataSource control for Entity Framework 6.

The NuGet package is here:

Microsoft.AspNet.EntityDataSource

Hope that helps.

There is one issue the OnSavingChanges is never called by the EntityDataSource replacement that the NuGet package introduces so you wont be able to process anything in there from DD.