Cannot implicitly convert type 'System.Data.EntityState' to 'System.Data.Entity.EntityState'. An explicit conversion exists (are you missing a cast?)

asp.net c# entity-framework

Question

I am getting this error in asp.net when using Entity Framework : "Cannot implicitly convert type System.Data.EntityState to System.Data.Entity.EntityState. An explicit conversion exists (are you missing a cast?)"

Here is the snippet:

foreach (OrderLine line in order.OrderLines)
{
    context.Entry(line.Product).State = System.Data.EntityState.Modified;
}

Please suggest what should I do to resolve the error.

1
16
3/3/2016 6:55:16 AM

Accepted Answer

When you are using EF 6 or moving from EF 5 to EF 6, you should use System.Data.Entity.EntityState instead of System.Data.EntityState. This error happens when your project has reference to EF6 but you have code for EF5.

Also, check this link: When upgrading from EF5 to EF6 should I replace System.Data.Objects?.

45
5/23/2017 11:46:16 AM

Popular Answer

This happened to me in a generated controller. It works for me after removing using System.Data.EntityState and adding using Microsoft.EntityFrameworkCore



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