LINQ更新查询foreach [英] LINQ update query foreach

问题描述

我尝试创建LINQ更新查询

i试试这个sp

I try to create LINQ update query
i try this sp

ALTER procedure [dbo].[updateselect_Data]
@ServiceID int,
@Service_frequency nvarchar(50),
@Next_Service nvarchar(50),
@Create_reminder nvarchar(50)

as
Update tbl_fl_Services_schedule
SET 
tbl_fl_Services.Service_frequency=@Service_frequency,
tbl_fl_Services.Next_Service=@Next_Service,
tbl_fl_Services.Create_reminder=@Create_reminder
where
ServiceID=@ServiceID

我尝试过：



查询

What I have tried:

query

public static string updateselect_data(int ServiceID, string Service_frequency, string Next_Service, string Create_reminder)
        {
            Data track = new Data();

            var update = (from p in track.tbl_fl_Services where p.ServiceID == ServiceID select p).ToList()
                .ForEach(x => x.Service_frequency = Service_frequency);
}

现在我为每个循环选择多个值？

now i select multiple value in for each loop ?

推荐答案

创建一个函数，将值复制到对象上并从ForEach调用该函数

Create a function that copies the values onto the object and call that function from your ForEach

// I've guessed the type of your schedule object, you'll need to supply the correct type
public void Update(tbl_fl_Services_schedule schedule, string Service_frequency, string Next_Service, string Create_reminder)
{
    schedule.Service_frequency = Service_frequency;
    schedule.Next_Service = Next_Service;
    schedule.Create_reminder = Create_reminder;
}

.ForEach(x => Update(x, Service_frequency, Next_Service, Create_reminder));

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