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我正在尝试从 linq 查询中获取一些记录

dataentities db = new dataentities();
db.Tabel1.Select(x=> new lcclsAccDueList {LedgerName ,LedgerId,Amount ,AmountInString ,Expr2,Name ,StopID ,VIP  }).ToList();

我做了这门课

 public class lcclsAccDueList
    {
        public string LedgerName { get; set; }
        public decimal LedgerId { get; set; }
        public Nullable<decimal> Amount { get; set; }
        public string AmountInString { get; set; }
        public Nullable<int> Expr2 { get; set; }
        public string Name { get; set; }
        public Nullable<decimal> StopID { get; set; }
        public Nullable<bool> VIP { get; set; }
    }

有没有其他方法可以选择所有记录，例如

dataentities db = new dataentities();
db.Tabel1.Select(x=> new lcclsAccDueList { * }).ToList();
// * indicates select all records
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1 回答 1

3

您可以创建获取并映射所有属性的lcclsAccDueList类构造函数：source

public class lcclsAccDueList
{
    public lcclsAccDueList() {}
    public lcclsAccDueList(tableItem source)
    {
        LedgerName = source.LedgerName;
        LedgerId = source.LedgerId;
        // (...)
    }

    public string LedgerName { get; set; }
    public decimal LedgerId { get; set; }
    // (...)
}

然后在您的查询中使用它：

dataentities db = new dataentities();
db.Tabel1.Select(x => new lcclsAccDueList(x)).ToList();

或者您可以使用自动映射库，例如automapper：

创建地图：

Mapper.CreateMap<tableItem, lcclsAccDueList>();

然后在您的查询中使用它：

dataentities db = new dataentities();
db.Tabel1.Select(x => Mapper.Map<lcclsAccDueList>(x);).ToList();
于 2013-08-31T07:11:40.727 回答