我有一个VB6程序集需要在我的.NET应用程序中使用,并生成Interop DLL以便通过tlbimp.exe与.NET一起使用。
VB6程序集有一个具有byref数组参数的函数。我不想更改VB6程序集中的任何内容,因此希望有解决方案使以下操作正常工作。
它正在填充数组,我希望在我的.NET代码(c#或vb.net)中使用它。
VB6函数示例(文件NativeClass.cls):
Public Function GetData(ByRef data() As String) As Integer
Dim tResults() As String
Dim sRecordCount As String
Dim lCount As Long
' load data
sRecordCount = dataDummyObject.RecordCount
ReDim tResults(sRecordCount, 2)
' fill the array in a loop
For lCount = 0 To sRecordCount - 1
tResults(lCount, 0) = dataDummyObject.Fields("property1")
tResults(lCount, 1) = dataDummyObject.Fields("property2")
If (sRecordCount - 1 - lCount) > 0 Then
Call dataDummyObject.MoveNext
End If
End For
data = tResults
GetData = sRecordCount
End Function
现在我希望从VB.NET中使用它:
Private _nativeAssembly As New NativeClass()
Public Function GetDataFromNativeAssembly() As String()
Dim loadedData As String() = Nothing
_nativeAssembly.GetData(loadedData)
Return loadedData
End Function
C#版本:
private NativeClass _nativeAssembly = null;
public string[] GetDataFromNativeAssembly()
{
string[] loadedData = null;
_nativeAssembly.GetData(loadedData);
return loadedData;
}
但是当我执行代码时,出现了以下异常:
System.Runtime.InteropServices.SafeArrayRankMismatchException: 已将秩为2的SafeArray传递给期望秩为1的数组的方法。
我真的需要帮助解决这个问题!感谢任何建议!