About Stephen Jackson Expertise I can help with questions regarding VB.NET syntax and object references, with data interfaces and with the design and creation of robust, data aware object classes. I can also be very helpful with creating distributable applications and provide tricks and tips on .msi creation. I also have extensive experience in designing SQL Server Databases and interfacing them with VB.NET. I try to avoid web specific questions, as that is an area of expertise all its own.
Experience
Experience in the Area: I have been a programmer in Visual Basic since version 1.0 and have worked with VB.NET (which is infinitely more powerful than previous versions) since its initial release and SQL Server, both as a corporate IT professional and professional consultant. I first wrote Basic in 1976 on a TRS 80 and have worked in Visual Basic 1.0 and every subsequent release of Microsoft Visual Basic. I worked for over 7 years as a Senior Level Consultant in the area and currently hold a Project Manager position in IT.
Education and Credentials: MBA in Econometrics, 1983, University of Memphis.
BBA in Financial Management, 1982, Fogelman College of Business and Economics, University of Memphis. Microsoft Certified Professional
Areas of Special Expertise:
My specialty is the design of Object Oriented Solutions with robust, data aware object classes. I generally avoid the classic ‘Three Tier’ model as I find it redundant and cumbersome to maintain. I also specialize in the creation of ‘User Friendly’ User Interfaces which help lessen the need for user training and help prevent user error. I work best with Windows Forms based applications, and while I do work in C# as well, I prefer to limit my questions here to Windows Forms based applications created in Visual Basic.NET and SQL Server. I wil also address questions relating to the distribution and installation of Windows Forms based applications created in VB.NET.
Expert: Stephen Jackson Date: 4/23/2008 Subject: module or class
Question Dear Sir,
I'm confuse of using module and class in vb .net,
for example i write a function that is global use to replace a "'" string.
eg .
Public Function Rpstr(ByVal strString As String) As String
Rpstr = Replace(strString, "'", "''", , , CompareMethod.Text)
End Function
question
1.
should i place it at module or class?why?
2.
what different public and public shared,when we use it?
Thanks in advance.
Answer Chee,
Good question! he answer depends on who you ask and what you are trying to do, of course. Since VB.NET allows us to use Object Oriented Programming (OOP), I believe most of us would recommend that you use a Class. (You could add this to a module as a public function and access it anywhere in the application, too.)
You can create a utility class for use in your application which handles routine functionality (like your method above) which you might want to use in many places within the application. For example, create a MyUtilities Class, and create the function as a Friend Function, then you will need to create an instance of the class to use it (Dim thisUtil as new MyUtilities). For such a simple function, I would probably make it a Public Shared Function, so that you can call it directly from the class without instantiating it (for example call MyUtilities.Rpstr() directly from anywhere in your application).
