Programming Microsoft Dynamics NAV - Fifth Edition

Custom functions

We can also create our own custom functions to meet any need. The most common reason to create a new function is to provide a single, standardized instance of logic to perform a specific task. When we need to use the same logic in more than one place, we should consider creating a callable function.

We should also create a new function when we're modifying standard NAV processes. Whenever more than three or four lines of code are needed for the modification, we should consider creating the modification as a function. If we do that, the modification to the standard process can be limited to a call to the new function. It's usually not a good idea to embed a new function into an existing standard function. It's better to clone ...