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我正在尝试使用产品类实体、抽象存储库和带有示例数据的假存储库来创建域模型。

我创建了以下产品类

Namespace Entities
Public Class Product
    Dim _ProductID As Integer
    Dim _Name As String
    Dim _Description As String
    Dim _Price As Decimal
    Dim _Category As String
    Public Property ProductID() As Integer
        Get
            Return _ProductID
        End Get
        Set(ByVal value As Integer)
            _ProductID = value
        End Set
    End Property

    Public Property Name() As String
        Get
            Return _Name
        End Get
        Set(ByVal value As String)
            _Name = value
        End Set
    End Property

    Public Property Description() As String
        Get
            Return _Description
        End Get
        Set(ByVal value As String)
            _Description = value
        End Set
    End Property

    Public Property Price() As Decimal
        Get
            Return _Price
        End Get
        Set(ByVal value As Decimal)
            _Price = value
        End Set
    End Property

    Public Property Category() As String
        Get
            Return _Category
        End Get
        Set(ByVal value As String)
            _Category = value
        End Set
    End Property
End Class
End Namespace

以及如下界面：

Namespace Abstract
Public Interface IProductsRepository
    ReadOnly Property Products() As IQueryable(Of Product)
End Interface
End Namespace

我现在需要使用通用 LINQ 列表创建数据，但是我被卡住了，这是我目前所拥有的，但我无法添加项目：

Imports DomainModel.Abstract
Imports DomainModel.Entities

Namespace Concrete
Public Class FakeProductsRepository
    Implements IProductsRepository
    Private Shared fakeProducts As IQueryable(Of Product) = New List(Of Product)().AsQueryable

    Public ReadOnly Property Products() As System.Linq.IQueryable(Of Entities.Product) Implements Abstract.IProductsRepository.Products
        Get
            Return fakeProducts
        End Get
    End Property

End Class
End Namespace

样品项目：

fakeProducts.Add(New Product() With {.Name = "Football", .Price = 25})

非常感谢帮助..

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1 回答 1

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我现在需要使用通用 LINQ 列表创建数据，但是我被卡住了，这是我目前所拥有的，但我无法添加项目：

“创建数据”是什么意思？此外，LINQ 用于检索数据，而不是相反。您可以简单地将数据放入一个列表并返回该列表——它是可查询的：

Private ReadOnly fakeProducs As New List(Of Product)
...

fakeProducts.Add(New Product() With {.Name = "Football", .Price = 25})

...

Public ReadOnly Property Products() As System.Linq.IQueryable(Of Entities.Product) Implements Abstract.IProductsRepository.Products
    Get
        Return fakeProducts.AsQueryable()
    End Get
End Property
于 2009-10-13T12:08:00.387 回答