How to use a Control created in C# as a form in VB6 [closed]

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I have a user control created in a C# solution and I have to use that control in an existing form in VB. I am new to vb. Please help me out in this.

Thanks in advance.

Are you sure? you want to use .net dll in VB? That won't work if .net is not installed? — Sriram Sakthivel
– Sriram Sakthivel, Commented Oct 1, 2013 at 7:18
yes. Dotnet is already installed.I am trying to use it like this. Set mctldemo = Controls.Add("Democtl.Control", "ctlDemo", Me) — satyanarayana
– satyanarayana, Commented Oct 1, 2013 at 8:57

Community · Accepted Answer · 2017-05-23 12:17:47Z

2

I have set the control like this when loading the data:

   Set mctldemo = Controls.Add("Democtl.Control", "ctlDemo", Me)

But forgot to mention the ClassInterface as shown in this link

[ClassInterface(ClassInterfaceType.AutoDual)]
    [ProgId("Democtl.Control")]

Thank you all for responding to my question and thank you Nadeem_MK for the link

edited May 23, 2017 at 12:17

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answered Oct 1, 2013 at 13:46

satyanarayana

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Ben · Accepted Answer · 2013-10-02 16:20:17Z

-1

It seems this is not supported. I've never tried - why would I - but others have:

However according to support documents, it may be just barely possible to make it work by hosting the dotNet usercontrol within a WebBrowser instance on the VB6 control.

http://support.microsoft.com/kb/317346

But I really suggest you don't do that. I can't help thinking it would be easier to upgrade the whole form to dotNet... indeed the whole project to VB.Net...

Alternatively you could rewrite the usercontrol as a VB6 usercontrol.

edited Oct 2, 2013 at 16:20

answered Oct 1, 2013 at 12:33

Ben

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1 Comment

MarkJ Over a year ago

Aren't your three links are for different problems? (i) displaying a .Net control in an Office document (ii) displaying a .Net form from VB6 (iii) displaying a .Net control from Internet Explorer. The question is about displaying a .Net control (not form) in a VB6 form. BTW upgrading VB6->VB.Net can be a massive undertaking.

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