The class constructor should also be empty, leave it like that as we won't be doing anything in there.
Create the next variable: Show Form In Side VB creates a new form object and shows it.
Namespaces Add the following using statement above your Class In CSharp Object's class declaration: //Made Project Out Put Type Class Library //Project Properties, Output Type - Class Library //Or Can Make Class Library Project and Add Form & Form References public interface interface Class In CSharp Project Having an interface inside the namespace allows us to expose our class' methods to any external caller.
These two methods, which will be added shortly, are the only two methods in our class.
Often times the need arises to make use of a C# program's functionalities inside of a VB. Usually in this case, a Class Library is created that exposes all the necessary methods to the calling application.
If you do not know what a class library is, have a look here. C# Open Visual Studio 2012 and create a new C# Class Library project. Once the project is loaded, add a new Windows Form to the project. Add one label to the form named lbl Call Info and set the properties not to have any Text and to be able to resize to fit its text. This will allow other programs to access and change the label externally. Rename the Class Library1 class to Class In CSharp Project. NET Create a new Visual basic Windows Forms application and name it VBCalling App. Once we have followed all of the above steps correctly and given each object the same name as I have, your class library will include a namespace named Call Me From VB.
One will be used to show the form, and the other method will be used to count how many times the form was shown. Make sure that your class' access modifier is Public.
I knew that if I could convert our project from a WAP to a WSP, we would be able to use C# for new MVC pages while leaving the existing VB. (And performance would not suffer, as the MSDN link above attests.) Unfortunately, after hours of searching, I could not find a comprehensive guide for converting a WAP to a WSP (there were dozens of guides for the reverse process.)I eventually got it done through painful trial and error, and I document the technobabble here for anyone who comes across this scenario in the future.
In fact, it is a very handy tool to replace one Active X control with another in your VB projects (vbp project files) in an elegant self-explanatory one-screen interface: The tool name comes from the "OCX" term.
This is a term used as the file extension for the visual Active X controls the developers generally use in such development environments like VB6 and VBA in MS Office.
As a nice addition, OCX Updater also saves all the settings you made between program launches.
We and the customers of our Active X components, such as the i Grid Active X Grid Control, use this utility to update our projects when the new versions of the control come out.