Hannes DuPreez

Introduction .Net developers are quite spoilt for choice when it comes to storing little pieces of information. Common places in which developers can store data are the following: Configuration files The Registry Flat files INI files Databases It all depends on the need of the user, and obviously the amount of data that needs storing. […]

Introduction Web scraping is a term that is becoming increasingly popular in the development world. It could because developers always tend to try to make things more and more convenient for users. At first, I wasn’t a big fan of scraping because it can be used to obtain data not intended to be had by […]

Introduction A month or so ago, I wrote a few articles introducing you to the world of databases and VB. If you have followed them, you have seen that it is not particularly difficult to use databases properly from VB. Today’s article is no exception. Today I will talk about using stored procedures built into […]

Introduction I love PhotoShop. For me PhotoShop is the best tool to use to do any alterations to any pictures. Now, some of you may know that I am very curious. I always want to figure out how something works. Now what does any of this have to do with today’s article? Well, it is […]

Introduction As a .NET trainer, the very first question I get asked when teaching a class is: “How do I create a game?” Obviously there are many answers and many examples at my (and their) disposal, but the very first thing that you have to learn is to make objects move, and then, possibly, determine […]

Introduction Welcome to my article! Today I will be demonstrating how easy it is to work with threads in your VB.NET application. Threads If you have never heard the term “Threads” before, let me explain. Any application makes use of threads to either show you information or a screen; or to allow for long running […]

Introduction Welcome to today’s article! Today I will demonstrate how to work with XML files with VB.NET. We will create an XML file, add nodes and elements onto it, and then remove the nodes and elements. Introduction to XML Here is a very nice and detailed explanation of the term ‘XML’, just in case you […]

Introduction Today you will learn about Generic Lists and how to use them productively in Visual Basic. NET Generic Lists According to MSDN, a Generic List “represents a strongly typed list of objects that can be accessed by index. Provides methods to search, sort, and manipulate lists”. This is very vague and does not tell […]

Introduction Welcome to my article. Today I will demonstrate what delegates are and how to use them to call managed code and unmanaged code. Managed Code Versus Unmanaged Code In short: managed code is code that is written in the .NET Framework with C# or VB.NET for example. Unmanaged code is code written in any […]

Introduction Welcome to today’s article! Today I will demonstrate how to save and retrieve BLOBS from a database with Visual Basic.NET. BLOBS Do not get confused. This is not a character from the movie called The Blob. The term Blob means: Binary Large OBject. The keyword that should tell you everything is Binary. A Blob […]

Introduction Hello again! Today I will talk about parameterized queries and the reporting options you have available in your VB.NET applications. Queries In case you don’t know what a query is, let me explain : A query is used to retrieve data from a database table, or to do a certain action, such as inserting […]

Introduction Extracting data from databases is not complicated at all. Any developer needs to know how to do this, as it’s essentially what makes your app tick. With this article I will demonstrate how to extract any information from a database and put it in your VB.NET application. SQL Structured Query Language is the programming […]