将字符串数组从VB6传递到C#.net

Question

如何通过COM Interop将VB6字符串数组[假设,s =数组("a","b","c","d")]传递给C#.Net？

我试图实现将C#字符串数组传递给VB,将VB字符串数组传递给C#,如下所示C# - > VB工作正常但其他方式(VB => C#)给出一个编译错误,称为"函数或接口标记为受限制,或者函数使用Visual Basic中不支持的自动化类型".我的代码如下

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:::::::

我们需要在C#中将数组作为引用传递.在界面和方法中更改它

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

Answer 1

编组到适当的类型将解决您的问题。请注意下面的编组和 ref 关键字更改

void ITest.SetArray([MarshalAs(UnmanagedType.SafeArray, SafeArraySubType=VT_BSTR)] ref string[] arrayVal)
{
   string[] stringArray1 = arrayVal;
}

我根据您的代码和您无法从 VB6 获取数据的问题制定了此解决方案。如果上述解决方案不适合您，请尝试在此处查找适合您的应用程序的数组类型/子类型http://msdn.microsoft.com/en-us/library/z6cfh6e6(v=vs.110).aspx