使用单个参数 Id 搜索记录列表并与多列 EF 进行比较

Question

我想从 table 获取记录，但我只有一个参数 ID。我想将单个参数与多列进行比较。这是我的代码。

var list = _ctx.Scheduler.Where(x => x.SaloonId == Id).ToList().Select(x => new AppointmentListModel
            {
                Id = x.ID,
                StatusName = x.AppointmentStatus.StatusName,
                AppointmentDate = x.AppointmentDate.ToShortDateString(),
                AppointmentDay = x.AppointmentDay,
                CustomerName = x.CustomerDetail.UserMaster.FirstName + " " + x.CustomerDetail.UserMaster.LastName,
                FromTime = x.AppointmentTimeFrom,
                ToTime = x.AppointmentTimeTo
            }).ToList();

上面的查询是从调度程序 table 获取有关沙龙 ID 的约会。这是下一个查询，用于从相同的 table 获取记录，但与 customerId.

进行比较

var list = _ctx.Scheduler.Where(x => x.CustomerId == Id).ToList().Select(x => new AppointmentListModel
            {
                Id = x.ID,
                StatusName = x.AppointmentStatus.StatusName,
                AppointmentDate = x.AppointmentDate.ToShortDateString(),
                AppointmentDay = x.AppointmentDay,
                CustomerName = x.CustomerDetail.UserMaster.FirstName + " " + x.CustomerDetail.UserMaster.LastName,
                FromTime = x.AppointmentTimeFrom,
                ToTime = x.AppointmentTimeTo
            }).ToList();

如何使用单个查询来实现。

Answer 1

尝试使用 conditional logical OR (||) operator:

var list = _ctx.Scheduler
    .Where(x => x.SaloonId == Id || x.CustomerId == Id)
    .ToList()
    .Select(x => new AppointmentListModel
            {
                Id = x.ID,
                StatusName = x.AppointmentStatus.StatusName,
                AppointmentDate = x.AppointmentDate.ToShortDateString(),
                AppointmentDay = x.AppointmentDay,
                CustomerName = x.CustomerDetail.UserMaster.FirstName + " " + x.CustomerDetail.UserMaster.LastName,
                FromTime = x.AppointmentTimeFrom,
                ToTime = x.AppointmentTimeTo
            })
    .ToList();

Answer 2

您只需将这两个条件都添加到 Where 子句中即可。

    var list = _ctx.Scheduler.Where(x => x.SaloonId == Id || x.CustomerId == Id).ToList().Select(x => new AppointmentListModel
        {
            Id = x.ID,
            StatusName = x.AppointmentStatus.StatusName,
            AppointmentDate = x.AppointmentDate.ToShortDateString(),
            AppointmentDay = x.AppointmentDay,
            CustomerName = x.CustomerDetail.UserMaster.FirstName + " " + x.CustomerDetail.UserMaster.LastName,
            FromTime = x.AppointmentTimeFrom,
            ToTime = x.AppointmentTimeTo
        }).ToList();

使用单个参数 Id 搜索记录列表并与多列 EF 进行比较

Searching Record List using single parameter Id and compare with multiple columns EF

entity-framework

linq

linq-to-sql