如何为客户特定数据使用通用变量

Question

我创建了一个包含常用变量的通用DLL.我有用户定义的字段作为占位符,因此我们可以保存客户特定的数据.此dll将用于客户端特定的应用程序.

如何将这些通用变量映射到相关的sql表字段,以便我们可以操作自定义数据库？我想避免编写自定义查询.

一个像小巧玲珑的ORM会在这里有用吗？

编辑:根据danihp的回应,我开始研究实体框架的工作.看起来很有希望.我推断使用Fluent API我可以将这个dll移植到独特的应用程序中并传递db对象(而不是我的类？)来做业务逻辑.

Public Class Runs
    Private _RunMailPeices As Dictionary(Of String, MailPiece) = New Dictionary(Of String, MailPiece)
    Private _run As Integer    
    Private MailDate As DateTime
    Public Property RunMailPeices As Dictionary(Of String, MailPiece)
        Get
            RunMailPeices = _RunMailPeices
        End Get
        Set(value As Dictionary(Of String, MailPiece))
            _RunMailPeices = value
        End Set
    End Property

    Public Property run As Integer
        Get
            run = _run
        End Get
        Set(value As Integer)
            _run = value
        End Set
    End Property
End Class

和:

Public Class MailPiece

    Private _address1 As String = String.Empty
    Private _address2 As String = String.Empty
    Private _string1 As String = String.Empty
    Private _string2 As String = String.Empty
    Public Property Address1 As String
        Get
            Address1 = _address1
        End Get
        Set(value As String)
            _address1 = value
        End Set
    End Property

    Public Property Address2 As String
        Get
            Address2 = _address2
        End Get
        Set(value As String)
            _address2 = value
        End Set
    End Property
    Public Property String1 As String
        Get
            String1 = _string1
        End Get
        Set(value As String)
            _string1 = value
        End Set
    End Property

    Public Property String2 As String
        Get
            String2 = _string2
        End Get
        Set(value As String)
            _string2 = value
        End Set
    End Property
End Class

Answer 1

您正在寻找实体框架.您可以轻松地将类映射到表.你只有两个相关的课程.将这些类映射到具有实体框架的表是如此容易.然后,您将避免编写查询,只是LINQ表达式和导航通过具有导航属性的表.

实体框架(EF)是一种对象关系映射器,它使.NET开发人员能够使用特定于域的对象处理关系数据.它消除了开发人员通常需要编写的大多数数据访问代码的需要.

通常创建数据访问层." 实体框架是微软推荐的新应用数据访问技术 "

您的代码看起来很容易被EF处理,但是,如果没有,您可以编写新的类来轻松地保留您的自定义类.

您可以使用VB.NET在Entity Framework Fluent API上通过示例EF VB.NET代码学习