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Getting values from a COM object through ByRef parameters. Messages   Related Types This message was discovered on microsoft.public.dotnet.languages.vb.upgrade. Responses highlighted in red are from those people who are likely to be able to contribute good, authoratitive information to this discussion. They include Microsoft employees, MVP's and others who IMHO contribute well to these kinds of discussions. Post a new message to this list... Tim Tyannikov I asked this question in C# groups but did not get any response back. I decided to try my luck here. My problem is that I can't get values from a COM object through ByRef parameters using InvokeMember method. Here is a very simple example in VB6 + C#: I have a test class called RefTest in TestByRef project. The class has only one method: Public Sub Sub1(ByRef x As String) x = "asdf" End Sub In my test C# project I have: Type t = Type.GetTypeFromProgID("TestByRef.RefTest", true); object test = Activator.CreateInstance(t); object [] args = new object[1]{null}; test.GetType() .InvokeMember("Sub1" , System.Reflection.BindingFlags.InvokeMethod ,null,test, args); txtTestMethodResult.Text = args[0].ToString(); This code does not take me anywhere. The value of args[0] is always null; not "asdf" as I expect. Can somebody please tell me what is it that I am doing wrong? Your response is greatly appreciated, Tim. Reply to this message...        Patrick Steele [MVP] (VIP) In article <Click here to reveal e-mail address>, Click here to reveal e-mail address says... [Original message clipped] See this article: http://www.google.com/groups?selm=BC4gFoXoCHA.1928%40cpmsftngxa06 -- Patrick Steele Microsoft .NET MVP http://weblogs.asp.net/psteele Reply to this message...     System.Activator System.Reflection.BindingFlags System.Type Ad MBR BootFX Best-of-breed application framework for .NET projects, developed by Matthew Baxter-Reynolds and MBR IT

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