How to load related data in Repository pattern Entity framework 3.1

Install the Proxies package using nuget manager

Install-Package Microsoft.EntityFrameworkCore.Proxies

Enable LazyLoadingProxies You can enable it with a call to UseLazyLoadingProxies:

protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
    => optionsBuilder
        .UseLazyLoadingProxies()
        .UseSqlServer(myConnectionString);

Or when using AddDbContext:

Go inside the Startup.cs file inside the ConfigureServices method

services.AddDbContext<BloggingContext>(
b => b.UseLazyLoadingProxies()
      .UseSqlServer(myConnectionString));

if you have used the DbContextPool than

services.AddDbContextPool<AdhyatmavaniContext>(
                b => b
                .UseLazyLoadingProxies()
                .UseSqlServer(myConnectionString));