how to use multi DBContextPool?

Question

In EFCore 2.0 Add new feature, DbContext pooling. i know how to use it in single context, however, sometimes need multi context in project,

public class BContext         


        

Answer 1

Or you can register your own factory of DbContextPool

services.AddDbContextPool<AContext>(options =>
{
    options.UseInMemoryDatabase("AContext.InMemory");
});
services.AddDbContextPool<BContext>(options =>
{
    options.UseInMemoryDatabase("BContext.InMemory");
});

collection.AddSingleton(svcs => new DbContextPool<AContext>(svcs.GetService<DbContextOptions<AContext>>()));
collection.AddSingleton(svcs => new DbContextPool<BContext>(svcs.GetService<DbContextOptions<BContext>>()));

Answer 2

Ok. i've found problem. You need to download EF Core, then change constructor for DbContextPool< TContext>

original

public DbContextPool([NotNull] DbContextOptions options)

and change to

public DbContextPool([NotNull] DbContextOptions<TContext> options)

otherwise DI will use last added options :)