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Error handling is an essential procedure in Visual Basic 2012 programming because it helps make a program error-free. Error-free code not only enables the programs to run smoothly and efficiently, it can also prevent all sorts of problems from happening like program crashes or system hangs.

Errors often occur due to incorrect input from the user. For example, the user might make the mistake of attempting to enter text (string) to a box that is designed to handle only numeric values such as the weight of a person, the computer will not be able to perform arithmetic calculation for text therefore will create an error. These errors are known as synchronous errors.

Read more about error handling in Visual Basic 2012 at:

http://www.vbtutor.net/index.php/visual-basic-2012-lesson-20/

In lesson 29 and lesson 30 of Visual Basic 2010 Tutorial, you have learned how to connect to a database as well as filling up the table with data in Visual Basic 2010, now you shall learn how to manipulate data in the database. Manipulating data means adding news records, editing records, deleting records, browsing records and more. Learn how to do these jobs in our newest Visual Basic 2010 lesson on database management:

http://www.vbtutor.net/index.php/visual-basic-2010-lesson-31/

A database management system typically deals with storing, modifying, and extracting information from a database. It can also add, edit and delete records from the database. However, a DBMS can be very difficult to handle by ordinary people or business men who have no technological backgrounds. Fortunately, we can create user friendly database applications to handle the aforementioned jobs with the DBMS running in the background. One of the best programs that can create such database application is none other than Visual Basic 2010.

Visual Basic 2010 uses ADO.NET to handle databases. ADO.NET is Microsoft’s latest database technology which can works with many other advanced database management system such as Microsoft SQL server.

Read more about database management in our two new lessons in Visual Basic 2010 Tutorial:

http://www.vbtutor.net/index.php/visual-basic-2010-lesson-29/

and

http://www.vbtutor.net/index.php/visual-basic-2010-lesson-30/

 

Have you ever tried to crack a protected program by entering all kinds of passwords without success? You can actually automatize the passwords generating process. I have created a passwords cracking program using Visual Basic 6, though it is just a simple simulation. This program is now live on YouTube at: http://youtu.be/KX2ekKnvqaE

Years ago I have created a memory game for my children to play while they were young. This is a typical memory game for children. The user has to click the rectangles to reveal the hidden pictures and if two of the pictures are matching they will disappear. He or she wins the game when all the pictures are cleared and the background image is usually displayed.

Now you can watch this game on YouTube: http://youtu.be/Qe3Zk4-Sby8