11 replies to this topic

[Pinto Novo]

Hi Stefan I am working in a program that requires the communication between VB.net and C#. I'm using C# to access to Sockets and I'd like to work with the requested string in vb.net. The main ideia is: 1 - An external application send the information via Socket. 2 - The C# program receives the info, and raise an event that can be captured using VB.net. In this step, I can work with the string using vb.net. I send steps and direction for a Step motor. When vb.net stops the motor, send back to C# the response OK/NOT OK. Can you create an example, a simple example that simulates the comunication between VB.net and C# using sockets. The solution has to be one because I need to send both to Netduino Plus! Note: I'm a VB.net Programmer and not C# programmer! Thanks at glance! Ricardo

[Moskus]

Why exactly do you need to use C# if you know VB.net? It's nice to know both, but it doesn't make sense to mix the two... (And I don't think you CAN mix the two on a Netduino. You can use both, but not in the same application.)

[Stefan]

Hi Stefan

Hi

You could make a class library in C# and use it in VB.NET like I do in the samples at http://netmftoolbox.codeplex.com/
In some samples (the keypad and rfid reader) I used events.

But that's the only (decent) way to combine both languages I think. If you're going to develop the full package, I don't see a good reason to combine two languages to be honest. It'll only be useful when it's depending on other libraries written in another language.

Does that help?

[Pinto Novo]

Thanks for your concerning! Well, What I need is: Send a command line using sockets. VB.net don't have Sockets libs, so I need C# to receive the stream and send back stream. In my project I have a PC that have coordinates - Point A, Point B. My NetDuino calculates the lines between A and B. When it stops C# send to PC the stream OK. If VB.Net had Sockets support, I didn't need C#! C# receives a command, and Raise Event that VB.net can capture! Thats the main ideia! Thanks!

[Pinto Novo]

Hi Stefan I think that both projects in kep pad helps me on my project! i'll try right way! Thanks to all !

[Moskus]

VB.net don't have Sockets libs,

From where did you get that? VB.net supports Sockets!
I use it for sending files to my FTP server using a simple Socket FTP client, and the SimpleWebserver also uses Sockets, of course.

I still don't see why you need to use both C# and VB.net. VB.net can also uses handles, events and sockets, so It seems like you are crossing the stream to find water.

[Pinto Novo]

Hi Moskus

Sorry that I didn't express myself correctly!


vb.net supports sockets, but i was refering vb.net for Netduino.


I already tried to add System.Net.Sockets but I didn't have sucess!


If you have a webserver based in vb.net, can you send to me?


Thanks!


Ricardo

[Moskus]

vb.net supports sockets, but i was refering vb.net for Netduino.

I was too! VB.net and sockets work great together.


Heres a webserver sample using VB.net. I took the C# version and converted it to VB using this web service.


For System.Net.Sockets to work you actually have to import Microsoft.SPOT.Net. I know, it's confusing as hell but that's the way it is.

[Pinto Novo]

Hi Moskus In fact you are right, sockets works in micro framework. And my apps start to work fine, but I have another dought...(hoping that this time the question can be a really question) How can I use mid() function, instr() function? I already add System.Strings, but I can't access to these functions. Thanks at grance! Ricardo

[Stefan]

How can I use mid() function, instr() function? I already add System.Strings, but I can't access to these functions.

You're used to VB6 I suppose? Loved those days!!

Try this:

        Dim text As String = "This is a test string"
        Debug.Print(text.Substring(5, 2))            ' "is"
        Debug.Print(text.IndexOf("test").ToString()) ' 10

[Pinto Novo]

Thanks for the tip! it work! I've read in another post that I can decompile Microsoft.Visualbasic.dll, catch the functions that I need and add these functions to my Microsoft.VisualBasic.dll Microframework... I'll try this! Thanks Ricardo

[Moskus]

I've read in another post that I can decompile Microsoft.Visualbasic.dll, catch the functions that I need and add these functions to my Microsoft.VisualBasic.dll Microframework... I'll try this!

If you do this, I'd love to see the code.