这个C＃FluentNHibernate组件映射的等效VB.NET代码是什么？ [英] What would be the equivalent VB.NET code for this C# FluentNHibernate component mapping?

问题描述

在进一步探索NHibernate的当前客户端时，我遇到了FluentNHibernate，我觉得它很吸引人。

但是现在我想知道如何将这个用于组件映射的C＃代码翻译成VB.NET代码：

组件（x => x.Address，m =>
{
m.Map（x => x.Number）;
m.Map（x => x.Street）;
m.Map（x => x.PostCode）;
}）;

我从这里知道：

<$ p $ （c）地址，...）

我想念的是如何继续VB.NET中的括号，因为没有Begin End关键字等等。

按照JaredPar先生的指示，我觉得他的解决方案可能有效。如果我们花时间阅读他的答案，我们可能会注意到，我们都不知道他的解决方案中的MType是什么。我可能已经发现MType是：

  FluentNHibernate.Mapping.ComponentPart（Of TComponent ）
  

因此，根据我的理解，TComponent是一个匿名类型我将参数使用。从这个角度来看，因为我希望映射我的Address对象的属性，所以在我的帮助方法签名中替换TComponent似乎不起作用。

  Private Sub MapAdresseHelper（Of Adresse）（ByVal a As FluentNHibernate.Mapping.ComponentPart（Of （函数（m）m.Number）
 a.Map（函数（m）m.Street）.Length（50）
 a.Map（函数（m）m.Number） m）m.PostCode）.Length（10）
 End Sub 
  

是我的Address类没有名为Street的属性成员，例如。它看到我的地址类型，它可以识别它，但它似乎有些bug。我猜VBNET对于lambda表达式设计的不是很好，而且不像C＃那样进化（对不起，因为使用它而受到一定的限制，并且不能在C＃中很容易地完成任务）。 $ b

解决方案

在Visual Basic 2010中，您可以编写以下代码：

 <$ c $ （x）x.Address，Sub（m）
 m.Map（Function（x）x.Number）
 m.Map（Function（x）x.Street）
 m.Map（Function（x）x.PostCode）
 End Sub）
  

编辑

这是一个VS2008风格的解决方案。我不是很熟的FluentNHibernate，所以我不知道M的类型是什么，但是你应该能够用它的类型替换MType，并且代码工作得很好。

$ b $ （函数（x）x.Number）
m.Map（函数（x））b pre $ Private Sub Helper（ByVal m As MType）
m.Map （函数（x）x.PostCode）
结束小组


组件（函数（x）x.Address ，AddressOf Helper）


I'm a C# programmer constrained to write VB.NET code.

While exploring NHibernate further for my current client, I encountered FluentNHibernate, which I find real attractive.

But now, I wonder how to "translate" this C# code for component mapping into VB.NET code:

Component(x => x.Address, m =>
{
    m.Map(x => x.Number);
    m.Map(x => x.Street);
    m.Map(x => x.PostCode);
});

I know from here:

Component(Of Client)(Function(c) c.Address, ...)

what I miss is how to continue with the brackets in VB.NET, since there's no Begin End keywords or so.

EDIT 1: Following Mr. JaredPar instructions, I figured that his solution might work. If we take the time to read his answer, we may notice that we both don't know what the MType is within his solution. I might have found out that the MType is:

FluentNHibernate.Mapping.ComponentPart(Of TComponent)

Thus, TComponent is, from my understanding, an anonymous type that I shall parameter to use. From this point of view, since I wish to map the properties of my Address object, replacing TComponent in my help method signature seems not to work.

Private Sub MapAdresseHelper(Of Adresse)(ByVal a As FluentNHibernate.Mapping.ComponentPart(Of Adresse))
    a.Map(Function(m) m.Number)
    a.Map(Function(m) m.Street).Length(50)
    a.Map(Function(m) m.PostCode).Length(10)
End Sub

The error I get is that my Address class doesn't have a property member named Street, for instance. It sees my Address type, it recognizes it, but it seems buggy somehow. I guess VBNET is poorly designed for lambda expressions and is less evolved than C# (Sorry, a bit of frustration due to the constraint of working with it and not being capable of doing things VERY easily done in C#.)

解决方案

In Visual Basic 2010 you can write the following

Component(Function(x) x.Address, Sub(m)
  m.Map(Function(x) x.Number)
  m.Map(Function(x) x.Street)
  m.Map(Function(x) x.PostCode)
  End Sub)

EDIT

Here is a VS2008 style solution. I'm not terrible familiar wit FluentNHibernate so I don't know what the type of M is but you should be able to replace MType with it's type and have the code work just fine.

Private Sub Helper(ByVal m As MType)
  m.Map(Function(x) x.Number)
  m.Map(Function(x) x.Street)
  m.Map(Function(x) x.PostCode)
End Sub

...  
Component(Function(x) x.Address, AddressOf Helper)

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