将字符串数组从VB6传递到C＃.net [英] Passing string array from VB6 to C#.net

问题描述

如何传递VB6字符串数组[假设，s = Array（a，b，c，d）]到C＃.Net通过COM Interop？

How to pass a VB6 string array [Assume, s =Array("a", "b", "c", "d")] to C#.Net through COM Interop?

我试图实现传递C＃字符串数组到VB和VB字符串数组到C＃如下C＃ - > VB工作正常但其他方式（VB => C＃）给出编译错误称为函数或标记为受限的接口，或者该函数使用了在可视基本中不支持的自动化类型。我的代码如下

I tried to implement passing C# string array to VB and VB string array to C# as below C#->VB working fine but other way (VB=>C#) giving a compile error called "Function or interface marked as restricted, or the function uses an automation type not supported in visual basic" . My code below

C#

    public interface ITest   
    { 
         string[] GetArray();
         void SetArray(string[] arrayVal );
    }

    public class Test : ITest 
    {
        string[] ITest.GetArray() {                                //Working fine
            string[] stringArray = { "red ", "yellow", "blue" };
            return stringArray;
        }
    }

    void ITest.SetArray(string[] arrayVal) //Giving an issue
    {
       string[] stringArray1 = arrayVal;
    }

VB

 Dim str As Variant
    Debug.Print ".NET server returned: "    
    For Each str In dotNETServer.GetArray      'dotNETServer=TestServer.Test
            Debug.Print str
    Next

    Dim arr(3) As String
    arr(1) = "Pahee"
    arr(2) = "Tharani"
    arr(3) = "Rathan"

    dotNETServer.SetArray (arr)         'This one causing the compile error which I mentioned earlier

更新：
::::::

Update: ::::::

我们需要传递数组作为参考在C＃。在界面和方法中更改它

We need to pass the array as reference in C#. Change it in the interface and method

void SetArray(ref string[] arrayVal ); //ref added

推荐答案

：

dotNETServer.SetArray (arr)

这实际上是迫使 arr 通过值传递，因为它被括号括起来，没有 Call 关键字。

This is actually forcing arr to be passed by value because it is enclosed by parentheses with no Call keyword.

您要这样做：

Call dotNETServer.SetArray(arr)

或

dotNETServer.SetArray arr

这篇关于将字符串数组从VB6传递到C＃.net的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！