使用SaveChangesAsync插入的C#获取列表Ids

using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using Microsoft.EntityFrameworkCore;

namespace YourNamespace
{
    public class YourEntity
    {
        public int Id { get; set; }
        // Other properties
    }

    public class YourDbContext : DbContext
    {
        public DbSet<YourEntity> YourEntities { get; set; }

        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
        {
            // Configure your database connection here
            optionsBuilder.UseSqlServer("YourConnectionString");
        }
    }

    public class YourRepository
    {
        public async Task<List<int>> InsertAndGetIds(List<YourEntity> entities)
        {
            using (var dbContext = new YourDbContext())
            {
                dbContext.YourEntities.AddRange(entities);
                await dbContext.SaveChangesAsync();
                return entities.ConvertAll(e => e.Id);
            }
        }
    }

    public class Program
    {
        public static async Task Main(string[] args)
        {
            var entities = new List<YourEntity>
            {
                new YourEntity { /* Set properties */ },
                new YourEntity { /* Set properties */ },
                // Add more entities as needed
            };

            var repository = new YourRepository();
            var ids = await repository.InsertAndGetIds(entities);

            Console.WriteLine("Inserted Ids:");
            foreach (var id in ids)
            {
                Console.WriteLine(id);
            }
        }
    }
}