为什么在C＃中加载.NET VB DLL中的属性会丢失？ [英] Why would a property in .NET VB DLL be missing when loaded in C#?

问题描述

我试图通过示例项目中制造商提供的.NET VB DLL与C＃中的仪器控制器通信。 VB代码完美无缺。当我附加DLL作为我的C＃项目的引用时，缺少一个键属性。所有其他属性和方法都按预期显示。确实出现的方法在C＃项目中起作用。在VB对象浏览器中，属性定义如下：

I am trying to talk to an instrument controller in C# through a .NET VB DLL provided by the manufacturer in an example project. The VB code works flawlessly. When I attach the DLL as a reference to my C# project a key property is missing. All the other properties and methods appear as expected. The methods that do appear work in the C# project. In the VB Object Browser the property is defined as follows:

ModbusTransaction‎(Byte‎) As Object

引用代码：

which references the code:

Public ReadOnly Property ModbusTransaction(ByVal CommandType As Byte)
    Get
        Call _ModbusTransaction(CommandType)
        Return _TransactionSuccess
    End Get
End Property

此属性用作示例代码中的方法，所以我不知道为什么它没有这样声明。我的问题是我无法执行此操作或知道如何从C＃中找到它。我使用的是VS 2013，如果它有所作为。



感谢您的帮助，

SMW



我尝试了什么：



我在C＃项目中尝试过DLL的方法和那些不要求缺少的属性（方法）正常工作。

This property is used as a method in the example code so I do not know why it is not declared as such. My problem is that I cannot execute this or know how to find it from C#. I am using VS 2013 if that makes a difference.

Thanks for any help,
SMW

What I have tried:

I have tried methods from the DLL in my C# project and the ones that do not require the missing property (method) work properly.

推荐答案

你没有给VB属性代码一个返回类型。

You didn't give the VB Property code a return type.

Public ReadOnly Property ModbusTransaction(ByVal CommandType As Byte) As ????
    Get
        _ModbusTransaction(CommandType)
        Return _TransactionSucess           '<----Where is this value coming from?
   End Get

或者该物业真的应该是一个功能吗？

Or should that property really be a Function??

Public Function ModbusTransaction(ByVal CommandType As Byte) As ????
    return _ModbusTransaction(CommandType)
End Function

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