EF Core 2.0 Enums stored as string

Question

I was able to store an enum as a string in the database.

builder.Entity(eb =>
{
    eb.Property(b => b.Stage).HasColumnType(\"varchar(20         


        

Answer 1

You can use this to convert all the Enum of all the properties of all the entities into a string and vice versa :

using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
using System;

namespace MyApp
{
    public class DatabaseContext : DbContext
    {
        public DbSet Users { get; set; }

        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
        {
            // Configure your model here
        }

        protected override void OnModelCreating(ModelBuilder model)
        {
            foreach (var entityType in model.Model.GetEntityTypes())
            {
                foreach (var property in entityType.GetProperties())
                {
                    if (property.ClrType.BaseType == typeof(Enum))
                    {
                        var type = typeof(EnumToStringConverter<>).MakeGenericType(property.ClrType);
                        var converter = Activator.CreateInstance(type, new ConverterMappingHints()) as ValueConverter;

                        property.SetValueConverter(converter);
                    }
                }
            }
        }
    }
}