Question

我目前正在测试VITA: Application Framework并且有一个名为公司的实体。公司可以拥有子公司，例如不同的办公室/商店，但我只想在列表中的母公司。

到目前为止，我有以下内容从数据库中获取记录，但where子句给了我这个错误

Unknown column 't0$.*' in 'where clause'

获取母公司的代码

DatabaseConfig.Configure(ConfigurationManager.ConnectionStrings("Context").ConnectionString)
Dim rbApp = DatabaseConfig.App
Dim dbSession = rbApp.OpenSession()
Dim companies As IList(Of ICompany) = dbSession.EntitySet(Of ICompany).Where(Function(w) w.Parent Is Nothing).ToList()

以下是公司界面

<Entity, ClusteredIndex("CreatedOn,Id")>
Public Interface ICompany

    <PrimaryKey, Auto>
    Property Id() As Guid

    <Auto(AutoType.CreatedOn)>
    Property CreatedOn() As DateTime

    <Size(200), Index>
    Property Name() As String

    <Size(100), Nullable>
    Property Telephone() As String

    <Size(100), Nullable>
    Property Mobile() As String

    <Size(100), Nullable>
    Property Fax() As String

    <Size(250), Nullable>
    Property Email() As String

    <Nullable>
    Property DeleteOn() As DateTime?

    <OneToMany(), Nullable>
    Property Parent() As ICompany

    <OrderBy("Name:DESC")>
    Property Children() As IList(Of ICompany)

End Interface

Answer 1

不是VITA的错误。我删除了OneToMany属性，查询按预期工作。

VITA - Linq to SQL - 对象什么都没有

1 个答案: