如何使用批注获取 EF Core 7 中的特定列

问：

我正在尝试学习如何使用 EF Core。 我正在使用 VB、EF Core 7、MySQL DB，我正在尝试做一个本地化的应用程序，其中表的列是本地化的。 我搭建了数据库的脚手架，我有这些实体：

Partial Public Class Board
    <Key>
    <Column("BoardID")>
    Public Property BoardId As Integer

    <StringLength(100)>
    <CustomDisplayName("BoardName")>
    Public Property BoardName As String

    <Column(TypeName:="text")>
    Public Property Description As String

End Class

Partial Public Class Item
        <Key>
        <Column("ItemID")>
        Public Property ItemId As Integer

        <Column("BoardID")>
        Public Property BoardId As Integer?

        Public Property CreationDate As DateOnly?

        Public Property LastModifiedDate As DateOnly?

        <StringLength(100)>
        Public Property Title As String
End Class

Partial Public Class Subitem
    <Key>
    <Column("SubitemID")>
    Public Property SubitemId As Integer

    <Column("ItemID")>
    Public Property ItemId As Integer?

    <Column("CreatorUserID")>
    Public Property CreatorUserId As Integer?

    Public Property CreationDate As DateOnly?

    Public Property LastModifiedDate As DateOnly?

    <Column(TypeName:="text")>
    Public Property Description As String

如果我这样做：

Using Context As New Context
 Dim result = Context.Boards.ToList
GridControl1.datasource = result
End Using

本地化标题正在工作，但向我显示了所有 3 个表中的所有列，例如内部连接它们，我只想从 boards 表中显示。

如果我这样做：

Using Context As New Context
 Dim result = Context.Boards.[Select](Function(Boards) New With {Boards.BoardName, Boards.Description}).ToList
GridControl1.datasource = result
End Using

准确显示我想要的列，但由于匿名类型，注释将不起作用。

我也试过：

Using Context As New Context

    Dim data = Context.Boards.AsQueryable()
    data = From recordset In Context.Boards Select New Board With {
    .BoardName = recordset.BoardName,
    .Description = recordset.Description
}

    Dim Result As List(Of Board) = data.ToList()
    GridControl1.DataSource = Result
End Using

但不是只显示 2 列，而是显示内部连接的所有列。本地化字幕正在工作。

任何建议：

1. 如何显示具有自定义数据注释工作的两列？
2. 如何只显示板表而不是 3 个表的内部连接？