AUTOFAC THROWIN EXCEPTION ON DBCONTEXT CONSTRUCTOR PARAMETER IN WINDOWS CONSOLE APP - windows

Question

I am using reverse poco to create entities from an sql database. The tt script I am using is from the on the plural website on the tutorial on EF. In a windows console app I am using Autofac to dependency injection of the the ddbcontext interface ISCDInnoPRDDataLayerDbContext:
public partial class SCDInnoPRDDataLayerDbContext : Microsoft.AspNet.Identity.EntityFramework.IdentityDbContext, ISCDInnoPRDDataLayerDbContext
and of a class that will takes that interface as an input.
public class DLScdHopDataNarRepository :
DLScdBaseRepository<Read_Only_HopDataNar>,
IDLScdHopDataNarRepository
{
public DLScdHopDataNarRepository(ISCDInnoPRDDataLayerDbContext dataLayerDbContext)
: base(dataLayerDbContext)
{
}
Autofac is throwing an exception when I resolve the DLScdHopDataNarRepository class. The exception is on the constructor parameter to the SCDInnoPRDDataLayerDbContext class.
Exceptions:
An exception was thrown while invoking the constructor 'Void .ctor(System.String)' on type 'SCDInnoPRDDataLayerDbContext'.
at SCDInnoPRD.DataLayer.Context.SCDInnoPRDDataLayerDbContext..ctor(String connectionString)
at lambda_method(Closure , Object[] )
at Autofac.Core.Activators.Reflection.ConstructorParameterBinding.Instantiate()
+ InnerException {"The type initializer for 'System.Data.Entity.Internal.AppConfig' threw an exception."}
System.Exception {System.TypeInitializationException}
Below is the autofac registration and the code that resolves the DLScdHopDataNarRepository .
Registration code:
public class SCDInnoPRDModule :Module
{
public string ConnectionString { get; private set; }
public SCDInnoPRDModule(string connectionString)
{
ConnectionString = connectionString;
}
protected override void Load(ContainerBuilder builder)
{
builder.RegisterType<SCDInnoPRDDataLayerDbContext>()
.As<ISCDInnoPRDDataLayerDbContext>()
.Keyed<ISCDInnoPRDDataLayerDbContext>("scdb")
.WithParameter((pi, ctx) => pi.ParameterType == typeof(string)
&& pi.Name == "connectionString",
(pi, ctx) => getConnectionString(ConnectionString))
.InstancePerLifetimeScope();
builder.RegisterType<DLScdHopDataNarRepository>()
.As<IDLScdHopDataNarRepository>()
.Keyed<IDLScdHopDataNarRepository>("sdhopres")
.InstancePerLifetimeScope();
builder.RegisterType<DLScdNarsService>()
.As<IDLScdNarsService>()
.Keyed<IDLScdNarsService>("sddlser")
.InstancePerLifetimeScope();
}
private Func< string,string> getConnectionString = delegate (string connectionString)
{
string retVal = connectionString;
return retVal;
};
Resolve code:
using (var config= new ContainerConfig())
{
// register dependency injectopn
var container = config.Configure();
using (var scope = container.BeginLifetimeScope())
try
{ // exception occurs here
var dlscd = container.ResolveNamed("sdhopres");
I have to a point where I can solve this problem. Any suggestion to fix the problem would be appreciated.
Any example source code project that use autofac to do di of a dbcontext in a windows console application would be helpful. I can not find any such project on line.
I can post the entire source code project on GitHub or a website for download if anyone would like to view the code