call procedure in form class from c# class?

Posted on 2004-10-25
Last Modified: 2010-04-15
hi all,

I don't code in c# and know little about it, but I have a library of code that I'm using.   Primarily I code in   I have added error handling within many of the functions and procedures of the c# library classes.   I would like to call a procedure that is in my form from within my c# code.   Can someone please show me how I can do this?   The procedure is just a one liner name, no parameters to pass or anything.   also, the form is already open.

Question by:OnlineNoob
    LVL 19

    Expert Comment

    if you meant to say that you have a class library written in C# then you can easily use that DLL in your VB.NET Code. Just click *Project-> Add Reference* menu and browse for the C# DLL.  Then you can easily use the classes in that DLL by using either

    using MYCSHARPDLL;
    myCSharpClass c  = new myCSharpClass();

    or without *using* keyword

    MYCSHARPDLL.myCSharpClass c  = new MYCSHARPDLL.myCSharpClass();

    LVL 1

    Author Comment

    I have sevearl C# classes uncompiled in my solution, along with my project.   I would like to call public procedure in the form class from within my c# class.
    LVL 7

    Expert Comment

    Check this url
    It helps to convert code to c#.

    LVL 19

    Expert Comment

    you can put your C# code in a dll and then acces in application easily...
    I dont think you can use both C# classes in it in the same application
    LVL 19

    Expert Comment

    It would be possible in the upcoming version of VS.Net
    LVL 6

    Accepted Solution

    So the VB.Net project is a Windows application. Is the C# project also a Widnows application? Or is the C# project .dll?

    Anyways, please remember that an .EXE application has an application domain which makes its bounderies clear: its members are for itself. That means, it is impossible to let a C# project access the members of a VB.Net application project. But you can let the VB.Net application project access the members of the C# project.

    What you can do is to create a VB.Net .dll that defines the member you wanted to share to other projects. You can then use this .dll in both your VB.Net app and your C# .dll.

    Have fun.

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