This tutorial will guide you on how to determine if the primary key entered is already exist in the table. I created this tutorial in the hope to help newbie’s programmer solve this common problem. Instead of displaying the default message cast by Visual Basic a message “Employee ID already exist. Please enter another Employee ID.” will appear. For those who would like to see the source code

Another source code on how to populate a CheckBox control with data, this time by using MySQL. In order to run this program you need to install the database included in the TreeView Control with MySQL. This program needs the Products table from the Northwind database which I ported to MySQL. Again the purpose of this code is to show you how to easily populate checkbox control with data. For more

This program will use the database from the previous source code called DataGridView Control with MySQL. You can use this program without downloading the previous source code by importing the SQL file to the northwind database. If you like you can use different name for the database. Just make sure to change the connection string to the name you choose. I just modified the source code from our

While I was trying to convert TreeView Control to work with MySQL I encounter an error with concurrent connection using DataReader. The error message was “ There is already an open DataReader associated with this Connection which must be closed first”. Even the Microsoft KB does not help in solving this problem. The workaround on this problem is to create another connection to avoid this error

This is a text to speech program which I use whenever I read an e-Book. Instead of reading an e-Book or any word from your computer you can just copy the text to the clipboard and click the play button and listen to the audio. The program is very accessible because it resides at the top of the screen and you can even move it to any location on your desktop. Before you can run and use this program

I received a lot of email if I can make a tutorial on how to connect VB.NET with MySQL. So here it is. I am planning to continue this tutorial that is similar on my previous article on Database Programming Made Easy. The only difference with the previous one is that I will be using MySQL instead of MS Access and MS SQL Server. This tutorial will teach you how to connect Visual Basic .NET 2008 to