C# 如何使用Linq查询C从帮助器类属性检索数据

我想从CPayment检索数据列表，但在编写linq查询时，会加载CPaymentModel类属性，但不会加载TransactionHelper类属性，因此无法查看

如何访问助手类属性或如何获取助手类和非助手类属性的列表？？如何解决这个问题

我的模型类代码是

控制器代码为：

索引页KendoUI网格代码：

我的输出是：

---

[单击]

如果要创建事务助手的新对象，请使用此方法。在这里，我创建了一个新对象，并使用初始值设定项语法来设置属性

var session = SessionManager.GetCurrentSession();

var data2 = session.Query<CPayment>().Select(row => new CPaymentModel()
{
    CardNo = row.CardNo,
    Product = row.ProductDetails.Product,
    Subproduct = row.ProductDetails.Subproduct,
    FileDate = row.FileDate,
    Transaction = new TransactionHelper
    {
        TransCode = row.Transaction.TransCode,
        TransDate = row.Transaction.TransDate
    }
}).ToList<CPaymentModel>();
var list = data2.ToDataSourceResult(dsRequest);

这是一个完全有效的结构。当你不能用初始化器做所有事情时，它会很有用。

试试这个

var session = SessionManager.GetCurrentSession();

var data2 = session.Query<CPayment>().Select(row => new CPaymentModel()
{
    CardNo = row.CardNo,
    Product = row.ProductDetails.Product,
    Subproduct = row.ProductDetails.Subproduct,
    FileDate = row.FileDate,
    Transaction =new TransactionHelper()
    {
        TransCode = row.Transaction.TransCode;
        TransDate = row.Transaction.TransDate
    }
}).ToList<CPaymentModel>();
var list = data2.ToDataSourceResult(dsRequest);

---

可能调用包含方法，并将path to Transaction属性作为参数，指示EF应使用所有属性加载该方法

var session = SessionManager.GetCurrentSession();

 var data2 = session.Query<CPayment>().**Include("CPayment.Transaction").**Select(row => new CPaymentModel()
 {
        CardNo = row.CardNo,
        Product = row.ProductDetails.Product,
        Subproduct = row.ProductDetails.Subproduct,
        FileDate = row.FileDate,
        Transaction =row.Transaction
   }).ToList<CPaymentModel>();
var list = data2.ToDataSourceResult(dsRequest);

---

从您的示例来看，不清楚在何处以及如何存储数据。这是一个数据库吗？您是否也将TransactionHelper存储在那里？您不能访问ar视图的属性是什么意思？它们是否包含空值？或者是整行事务为空？TransactionHelper是否在CPaymentModel中声明？或者您只是没有正确格式化代码？那么，您的CPayment类中是否有CPaymentModel的列表？只需更改为索引代码Kendo UI:@Html.Kendo.Grid.NamePaymentInfo.Columnscol=>{col.Boundc=>c.CardNo；col.Boundc=>c.FileDate；col.Boundc=>c.TransCode；col.Boundc=>c.TransDate；}.DataSourcedataSource=>dataSource.Ajax.readreadread=>read.ActionGetPersons，DataBinder

var session = SessionManager.GetCurrentSession();

var data2 = session.Query<CPayment>().Select(row => new CPaymentModel()
{
    CardNo = row.CardNo,
    Product = row.ProductDetails.Product,
    Subproduct = row.ProductDetails.Subproduct,
    FileDate = row.FileDate,
    Transaction = new TransactionHelper
    {
        TransCode = row.Transaction.TransCode,
        TransDate = row.Transaction.TransDate
    }
}).ToList<CPaymentModel>();
var list = data2.ToDataSourceResult(dsRequest);

row =>
{
    CPaymentModel cpModel = new CPaymentModel()
    {
        CardNo = row.CardNo,
        Product = row.ProductDetails.Product,
        Subproduct = row.ProductDetails.Subproduct,
        FileDate = row.FileDate,
        Transaction = new TransactionHelper()
    };
    cpModel.Transaction = new Transaction();
    cpModel.Transaction.TransCode = row.Transaction.TransCode;
    cpModel.Transaction.TransDate = row.Transaction.TransDate;

    return cpModel;
}

var session = SessionManager.GetCurrentSession();

var data2 = session.Query<CPayment>().Select(row => new CPaymentModel()
{
    CardNo = row.CardNo,
    Product = row.ProductDetails.Product,
    Subproduct = row.ProductDetails.Subproduct,
    FileDate = row.FileDate,
    Transaction =new TransactionHelper()
    {
        TransCode = row.Transaction.TransCode;
        TransDate = row.Transaction.TransDate
    }
}).ToList<CPaymentModel>();
var list = data2.ToDataSourceResult(dsRequest);

var session = SessionManager.GetCurrentSession();

 var data2 = session.Query<CPayment>().**Include("CPayment.Transaction").**Select(row => new CPaymentModel()
 {
        CardNo = row.CardNo,
        Product = row.ProductDetails.Product,
        Subproduct = row.ProductDetails.Subproduct,
        FileDate = row.FileDate,
        Transaction =row.Transaction
   }).ToList<CPaymentModel>();
var list = data2.ToDataSourceResult(dsRequest);