Auto Generate Key

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This tutorial will teach you on how to create a key automatically as a primary key in your table. It is sometimes needed to create your own key to format it on your own needs. Say for example you’d like to format it to start as four (4) digits rather than starting from one (1).

The code herein is based on the code that I have already submitted on some of my program like hotel reservation system. But these time a simplified one. I created this tutorial because there are some visitors in this website who asked this before.

How to Catch Duplicate Entry - Primary Key

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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

Thesis Writing

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I know how hard to create a program especially if you are a student. I’ve been on this situation before and luckily I was able to pass this requirement. I write this article due to the demand of so many students who visited this website. Unfortunately I cannot answer all your queries because I am prioritizing some paid services like thesis writing. In this matter, I am willing to help you create

CheckBox Control with MySQL

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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

ComboBox Control with MySQL

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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

TreeView Control with MySQL

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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
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