I am working on an existing .NET (C Sharp) component that had a com
interface that was used by a VB component. When it was originally
written, it had the SSEAssemblyCom class below - minus the two last
methods (for space I modified method names in my example below). I
added those. Everything but the two new methods I added referenced
the ISSEAssemblyCom interface below.
I was told I would need to create a secondary interface
(ISSEAssemblyCom2 below) that SSEAssemblyCom would use which I've done
as you can see in the code below. I created a tlb file for my .NET
component to use by my VB component and reference it and now my VB
component is only recognizing the two new methods I wrote and not any
of the other ones. I checked with a developer in my company and he
had me try putting the methods from ISSEAssemblyCom into
ISSEAssemblyCom2 and try it again. I did that and now my VB component
recognizes the first 12 but not the 2 new ones I added...??? Does
anyone know how this is supposed to be done properly so that I can
reference both the old and new interface methods? (By the way, I took
out the code below in each method of SSEAssemblyCom as I figured you'd
only care about the signatures anyways)
[ComVisible(true), ClassInterface(ClassInterfaceType.None)]
[Guid("A GUID VALUE HERE")]
[ProgId("PLXX0005.SSEAssemblyCom")]
public class SSEAssemblyCom : ISSEAssemblyCom, ISSEAssemblyCom2
{
public void Method1(string sz)
public void Method2(string sz)
public bool Method3(string sz, string sz2, out string sz3, int i)
public bool Method4(string sz, out string sz2, int i)
public void Method5(string sz)
public void Method6(string sz)
public string Method7(string sz)
public bool Method8(string sz, out string sz2, int i)
public void Method9(string sz, string sz2)
public bool Method10(string sz, out string sz2, int i)
public bool Method11(string sz)
public void Method12(string sz, string sz2)
public void MyNewMethod1(string sz, out string sz2)
public bool MyNewMethod2(string sz, out string sz2)
}
[ComVisible(true)]
[Guid("ANOTHER GUID VALUE HERE")]
public interface ISSEAssemblyCom
{
[DispId(1)] void Method1(string sz)
[DispId(2)] void Method2(string sz)
[DispId(3)] bool Method3(string sz, string sz2, out string sz3,
int i)
[DispId(4)] bool Method4(string sz, out string sz2, int i)
[DispId(5)] void Method5(string sz)
[DispId(6)] void Method6(string sz)
[DispId(7)] string Method7(string sz)
[DispId(8)] bool Method8(string sz, out string sz2, int i)
[DispId(9)] void Method9(string sz, string sz2)
[DispId(10)] bool Method10(string sz, out string sz2, int i)
[DispId(11)] bool Method11(string sz)
[DispId(12)] void Method12(string sz, string sz2)
}
[ComVisible(true)]
[Guid("A THIRD GUID VALUE HERE")]
public interface ISSEAssemblyCom2 : ISSEAssemblyCom
{
[DispId(13)] void MyNewMethod1(string sz, out string sz2)
[DispId(14)] bool MyNewMethod2(string sz, out string sz2)
}
