实例化.Net COM可见类时的自动化错误

Question

我用这个简单的类创建了一个COM-interop .dll:

using System.Runtime.InteropServices;

namespace ClassLibrary1
{
    [ComVisible(true)]
    [Guid("795ECFD8-20BB-4C34-A7BE-DF268AAD3955")]
    public interface IComWeightedScore
    {
        int Score { get; set; }
        int Weight { get; set; }
}

[ClassInterface(ClassInterfaceType.None)]
[Guid("9E62446D-207D-4653-B60B-E624EFA85ED5")]
public class ComWeightedScore : IComWeightedScore
{

    private int _score;

    public int Score
    {
        get { return _score; }
        set { _score = value; }
    }
    private int _weight;

    public int Weight
    {
        get { return _weight; }
        set { _weight = value; }
    }

    public ComWeightedScore()
    {
        _score = 0;
        _weight = 1;
    }
  }

我使用以下命令注册:C:\ WINDOWS\Microsoft.NET\Framework\v4.0.30319\regasm C:\ ComClasses\Classlibrary1.dll/tlb:Classlibrary1.tlb

最后,我成功地添加了对.dll的引用,之后VB6给了我关于对象的intellisense.

Private Sub Form_Load()
    Dim score1 As ComWeightedScore

    Set score1 = New ComWeightedScore
    score1.Score = 500

End Sub

在线Set score1=new ComWeightedScore上引发异常自动化错误.

它几乎不比这简单......错误在哪里？!

Answer 1

您忘记了Regasm.exe命令行中的/ codebase选项.

没有它,你必须强化程序集,并使用gacutil.exe将其放入GAC.在客户端机器上的好主意,只是不在你的机器上.