eCompanies/eCompanies/CompaniesDBContext.cs

using System;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Metadata;

namespace eCompanies
{
    public partial class CompaniesDBContext : DbContext
    {
        public CompaniesDBContext()
        {
        }

        public CompaniesDBContext(DbContextOptions<CompaniesDBContext> options)
            : base(options)
        {
        }

        public virtual DbSet<Company> Company { get; set; }
        public virtual DbSet<Users> Users { get; set; }

        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
        {
            if (!optionsBuilder.IsConfigured)
            {
                optionsBuilder.UseSqlServer("Server=(localdb)\\mssqllocaldb;Database=CompaniesDB;Trusted_Connection=True;");
            }
        }

        protected override void OnModelCreating(ModelBuilder modelBuilder)
        {
            modelBuilder.Entity<Company>(entity =>
            {
                entity.HasKey(e => e.CompanyId);

                entity.Property(e => e.ContractStatus)
                    .IsRequired();
                
                entity.Property(e => e.Name).IsRequired();

                entity.Ignore("contract");

                entity.Ignore("dataGridRowStatus");
            });

            modelBuilder.Entity<Users>(entity =>
            {
                entity.HasKey(e => e.UserId);

                entity.Property(e => e.CompanyId).HasColumnName("CompanyID");

                entity.Property(e => e.Login).IsRequired();

                entity.Property(e => e.Name).IsRequired();

                entity.Property(e => e.Password).IsRequired();

                entity.HasOne(d => d.Company)
                    .WithMany(p => p.Users)
                    .HasForeignKey(d => d.CompanyId)
                    .HasConstraintName("FK_Users_Company");

                entity.Ignore("dataGridRowStatus");
            });
        }
    }
}