The Document Pattern and the link between Header and Lines in Microsoft Dynamics NAV

In this post I will present some important information about the Microsoft Dynamics NAV Document Pattern. A document in NAV contains a Header with common data and one or more Lines. Each line is linked to the header. Let’s have a look for example at a Purchase Order. As you can see in the bellow image, a…

How to implement trial period or protection for your Excel Add-ins or workbooks using Excel VBA

There might be situations when you would like to set a trial period for your Excel applications: maybe you want to prevent employees take the applications and use them forever in other places after they leave your company or you simply need to provide to a client a trial that can be tested only a limited…