object[] xparams = {
            new SqlParameter("@ParameterWithNumvalue", DBNull.Value),
            new SqlParameter("@In_Parameter", "Value"),
            new SqlParameter("@Out_Parameter", SqlDbType.Int) {Direction = ParameterDirection.Output}};

YourDbContext.Database.ExecuteSqlCommand("exec StoredProcedure_Name @ParameterWithNumvalue, @In_Parameter, @Out_Parameter", xparams);
var ReturnValue = ((SqlParameter)params[2]).Value;  

它为我工作在代码第一。它返回一个匹配视图模型属性的列表(StudentChapterCompletionViewModel)

var studentIdParameter = new SqlParameter
{
     ParameterName = "studentId",
     Direction = ParameterDirection.Input,
     SqlDbType = SqlDbType.BigInt,
     Value = studentId
 };

 var results = Context.Database.SqlQuery<StudentChapterCompletionViewModel>(
                "exec dbo.sp_StudentComplettion @studentId",
                 studentIdParameter
                ).ToList();

已更新

Context是继承DbContext类的实例，如下所示。

public class ApplicationDbContext : DbContext
{
    public DbSet<City> City { get; set; }
}

var Context = new  ApplicationDbContext();

.NET Core 5.0没有FromSql，而是有frommsqlraw

下面这些都对我有用。这里的帐户类是c#中的实体，具有与数据库中完全相同的表和列名。

App配置类如下所示

class AppConfiguration
{
    public AppConfiguration()
    {
        var configBuilder = new ConfigurationBuilder();
        var path = Path.Combine(Directory.GetCurrentDirectory(), "appsettings.json");
        configBuilder.AddJsonFile(path, false);
        var root = configBuilder.Build();
        var appSetting = root.GetSection("ConnectionStrings:DefaultConnection");
        sqlConnectionString = appSetting.Value;
    }

    public string sqlConnectionString { get; set; }
}

DbContext类:

public class DatabaseContext : DbContext
{
    public class OptionsBuild
    {
        public OptionsBuild()
        {
            setting = new AppConfiguration();
            opsBuilder = new DbContextOptionsBuilder<DatabaseContext>();
            opsBuilder.UseSqlServer(setting.sqlConnectionString);
            dbOptions = opsBuilder.Options;
        }

        public DbContextOptionsBuilder<DatabaseContext> opsBuilder { get; set; }
        public DbContextOptions<DatabaseContext> dbOptions { get; set; }

        private AppConfiguration setting { get; set; }
    }

    public static OptionsBuild ops = new OptionsBuild();

    public DatabaseContext(DbContextOptions<DatabaseContext> options) : base(options)
    {
        //disable initializer
        //  Database.SetInitializer<DatabaseContext>(null);
    }

    public DbSet<Account> Account { get; set; }
}

这段代码应该在你的数据访问层:

List<Account> accounts = new List<Account>();
var context = new DatabaseContext(DatabaseContext.ops.dbOptions);
accounts = await context.Account.ToListAsync();   //direct select from a table

var param = new SqlParameter("@FirstName", "Bill");
accounts = await context.Account.FromSqlRaw<Account>("exec Proc_Account_Select", 
param).ToListAsync();            //procedure call with parameter
        
accounts = context.Account.FromSqlRaw("SELECT * FROM dbo.Account").ToList();  //raw query

在MYsql中创建Procedure。

delimiter //
create procedure SP_Dasboarddata(fromdate date, todate date)
begin
select count(Id) as count,date,status,sum(amount) as amount from 
details
where (Emidate between fromdate and todate)
group by date ,status;
END;
//

创建包含存储过程返回结果集值的类

[Table("SP_reslutclass")]
public  class SP_reslutclass
{
    [Key]
    public int emicount { get; set; }
    public DateTime Emidate { get; set; }
    public int ? Emistatus { get; set; }
    public int emiamount { get; set; }

}

在Dbcontext中添加Class

  public  class ABCDbContext:DbContext
{
    public ABCDbContext(DbContextOptions<ABCDbContext> options)
       : base(options)
    {

    }

 public DbSet<SP_reslutclass> SP_reslutclass { get; set; }
}

在存储库中调用实体

   var counts = _Dbcontext.SP_reslutclass.FromSql("call SP_Dasboarddata 
                    ('2019-12-03','2019-12-31')").ToList();

你可以将参数传递给sp_GetById并在ToList()或FirstOrDefault()中获取结果;

var param  = new SqlParameter("@id", 106);
var result = dbContext
               .Database
               .SqlQuery<Category>("dbo.sp_GetById @id", param)
               .FirstOrDefault();

当EDMX创建时，如果你在表选择选项中选择存储过程，那么只需使用过程名调用存储过程…

var num1 = 1; 
var num2 = 2; 

var result = context.proc_name(num1,num2).tolist();// list or single you get here.. using same thing you can call insert,update or delete procedured.