Launch VB form from a C# form

Question

A friend of mine and me were working on a project for class. He prefers VB and I prefer C#, so we just did our thing. Now, we were thinking of merging the projects. I added his into mine, but I can't find how to open the forms he has made from the forms I made.

Is there any way to launch VB forms from a C# form?

score 7 · Answer 1 · answered Mar 14 '12 at 14:58

7

Language is project specific. Meaning you have a C# project and VB project. You cannot mix multiple languages in one project. You can however have multiple languages projects in a solution. E.g he does the front-end in VB and you do the back end in c# and then add references in the vb project to the c# project.

Additionally, you could use a VB to C# converter or vice versa with mixed results. I've converted entire vb projects to c#.

answered Mar 14 '12 at 14:58

Michael Rice

1,173
5
13

But the problem is that we've both made forms, thinking we wouldn't be merging it. I know that you can add C# dll's to a VB project and the other way around. But I would like to open his forms. (Or am I just not understanding you) – Simon Verbeke Mar 14 '12 at 15:00
I believe you could open his form from the dll if it's exposed as public. One project will have to be the "master" that will do the application loading though. – Michael Rice Mar 14 '12 at 15:02
Alright, I'll look into that :) Or maybe just translating and recreating his forms. – Simon Verbeke Mar 14 '12 at 15:04

score 4 · Answer 2 · answered Mar 14 '12 at 14:58

4

You can't add different languages to the same project, but you should be able to add both projects to the same solution, and add a reference from your C# project to his VB project, and use the types he's created - so long as they're public, of course.

answered Mar 14 '12 at 14:58

Jon Skeet

1,421,763
867
9,128
9,194

score 4 · Accepted Answer · answered Mar 14 '12 at 15:06

It is not possible to mix C# in VB. but you can use approach suggested by Jon Skeet.

1) Create Multi-Project Solutions

How to: Create Multi-Project Solutions

2) Add Reference of your friend's VB project in your project

How to: Add a Project Reference to a Visual Studio Web Project

Then you can create object of those forms that your friend created as:

YourFriendProject.SomeForm  someForm = new YourFriendProject.SomeForm();
someForm.Show();

score 1 · Answer 4 · answered Mar 14 '12 at 15:06

The answer has already been posted, just adding a picture to make things a bit more clearer.

You cannot add forms / code from two different languages to the same project.
You can add a project reference from the VB assembly to the CS assembly and vica versa.
You can add either project to the other solution to have access to both.

enter image description here

score 0 · Answer 5 · answered Jul 29 '21 at 20:35

This is how I did it. C# opening VB.NET. I also added sCarletto as a reference, but trying to add my main C# for as a reference to sCarletto, I wasn't so successful...yet. On voice command Araura (form1) opens sCarletto (vb.net) form. enter image description here

score 0 · Answer 6 · edited Aug 02 '21 at 08:03

0

Here's a real simple solution I overlooked due to being burnt out on coding. I simply did this:

Case "ARAURA COME BACK"
Process.Start("The file path to my C# programs .exe located in the Debugging folder")
me.Close()

edited Aug 02 '21 at 08:03

ChrisF

134,786
31
255
325

answered Jul 29 '21 at 20:58

Justin Linwood Ross

1
2

Sorry for the separation issue above. I had it spaced out beneath each other, but it spit it back this way. You can find my projects at: github.com/deadreport77 – Justin Linwood Ross Jul 29 '21 at 21:00

Launch VB form from a C# form

6 Answers6

Linked