//protected override string ContextName => nameof(SampleDbContext); protected override void MapProperties(EntityTypeBuilder <Sample> builder) { builder.AddProperty(x => x.Name); builder.AddProperty(x => x.NullableName); builder.AddProperty(x => x.NumberInt); builder.AddProperty(x => x.NumberDouble); builder.AddProperty(x => x.NumberIntNullable); builder.AddProperty(x => x.NumberDoubleNullable); }