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asp.net core dbcontext isn’t for share. Entity Framework and DbContext

admin 11月 11, 2020 0

asp.net core dbContext isn't for share.

Entity Framework and DbContext

In short, if inject the DbContext into service and then inject service into controller.

DbContext isn’t designed to support sharing crossing thread.

// Define Local Scope
private readonly AsyncLocal<Scope> scopeProvider = new AsyncLocal<Scope>();
private object RequestScope(IContext context) => scopeProvider.Value;

// Define injection scope with Ninject
kernel.Bind<DbContext>().To<SqlDbContext>().InScope(RequestScope);
kernel.Bind<ISomeDao>().To<SomeDao>().InScope(RequestScope);
kernel.Bind<SomeServiceUseDao>().ToSelf().InScope(RequestScope);