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我正在尝试从实体框架代码优先模型中的存储过程中检索数据。但是，当我尝试时，它给了我一个错误“底层提供程序在打开时失败”，用于内部数据列表。

            using (ProductDbContext dbUserContext = new ProductDbContext())
            {
                listProducts = dbUserContext.Database.SqlQuery<Products>("SP_GetAllProducts");
                dbUserContext.Database.Initialize(force: false);

                var dbProdCmd = dbUserContext.Database.Connection.CreateCommand();
                dbProdCmd.Connection = dbUserContext.Database.Connection;

     //((IObjectContextAdapter)dbUserContext).ObjectContext.Connection.Open();

                dbProdCmd.CommandText = "SP_GetAllProducts";
                dbProdCmd.CommandType = CommandType.StoredProcedure;
                try
                {
                    // dbUserContext.Database.Connection.Open();
                    ((IObjectContextAdapter)dbUserContext).ObjectContext.Connection.Open();

                    dbUserContext.Database.SqlQuery<Products>("SP_GetAllProducts");

                    var prodReader = dbProdCmd.ExecuteReader();

                    listProducts = ((IObjectContextAdapter)dbUserContext)
                   .ObjectContext
                   .Translate<Products>(prodReader, "Products", MergeOption.AppendOnly).ToList();
                    prodReader.Dispose();
                }
                finally
                {
                    //dbUserContext.Database.Connection.Close();
                    //((SqlConnection)dbUserContext.Database.Connection).Close();

                    ((IObjectContextAdapter)dbUserContext).ObjectContext.Connection.Close();
                }
                //((IObjectContextAdapter)dbUserContext).ObjectContext.ContextOptions.LazyLoadingEnabled = false;
                return View(listProducts);
            }

Stored Procedure:

这是我的存储过程：

CREATE PROCEDURE [dbo].[SP_GetAllProducts]
    -- Add the parameters for the stored procedure here

AS
BEGIN
    -- SET NOCOUNT ON added to prevent extra result sets from
    -- interfering with SELECT statements.
    SET NOCOUNT OFF;

    -- Insert statements for procedure here
    SELECT * FROM [DBO].[Products]
    SELECT * FROM [DBO].[prd1]
    SELECT * FROM [DBO].[prd2]
    SELECT * FROM [DBO].[prd3]
    SELECT * FROM [DBO].[prd4]
    SELECT * FROM [DBO].[prd5]
    SELECT * FROM [DBO].[prd6]
END


Model:

模型结构是这样的：

using System.Collections.Generic;
using System;
using System.Data.Entity;

namespace Project.Models
{
    public class Products
    {
        public int Id { get; set; }
        public string Name { get; set; }
        public string Description { get; set; }
        public DateTime CreationDate { get; set; }
        public DateTime ModificationDate { get; set; }

        public virtual ICollection<T> prd1 { get; set; }
        public virtual ICollection<T> prd2 { get; set; }
        public virtual ICollection<T> prd3 { get; set; }
        public virtual ICollection<T> prd4 { get; set; }
        public virtual ICollection<T> prd5 { get; set; }
    }

    public class ProductContext : DbContext
    {
        public DbSet<T> prd { get; set; }
        public DbSet<T> prd1 { get; set; }

        public DbSet<T> prd2 { get; set; }
        public DbSet<T> prd3 { get; set; }
        public DbSet<T> prd4 { get; set; }
        public DbSet<T> prd5 { get; set; }
}
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