Entity Framework Core 2.0调用存储过程

Question

如何使用Entity Framework Core 2.0调用存储过程？ C＃中的Asp.net核心2.0站点

Answer 1

csproj文件：

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>netcoreapp2.0</TargetFramework>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="2.0.0" />
    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="2.0.0" />
  </ItemGroup>

</Project>

的Program.cs：

using System;
using System.Collections.Generic;
using System.Data.SqlClient;
using System.Linq;
using Microsoft.EntityFrameworkCore;

namespace EfExperiment
{
    class Program
    {
        public class Record
        {
            public int Id { get; set; }
            public DateTime Date { get; set; }
            public decimal Value { get; set; }
        }

        public class RecordsDbContext : DbContext
        {
            public DbSet<Record> Records { get; set; }

            public List<Record> RecordsByDateRange(DateTime fromDate, DateTime toDate)
            {
                var fromDateParam = new SqlParameter("fromDate", fromDate);
                var toDateParam = new SqlParameter("toDate", toDate);

                return Records
                    .FromSql("EXECUTE dbo.RecordsByDateRange @fromDate, @toDate", fromDateParam, toDateParam)
                    .ToList();
            }

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

        static void Main(string[] args)
        {
            using (var dbc = new RecordsDbContext())
            {
                var records = dbc.RecordsByDateRange(DateTime.Now.AddMonths(-1), DateTime.Now);
                Console.WriteLine($"{records.Count} records loaded");

                foreach (var record in records)
                {
                    Console.WriteLine($"[{record.Id}] [{record.Date}] {record.Value}");
                }
            }

            Console.WriteLine("Press <enter>");
            Console.ReadLine();
        }
    }
}