Dynamically Call Code with the Eval Function

摘要

The Eval function gives you the ability to "write code that writes code." More importantly, it gives you the ability to create expandable, flexible, and easily maintainable applications. Sometimes you don't know what code you're going to use at run time. It can, for instance, depend on which options the user picks. The Eval function in Access provides a simple and easy way to dynamically select code at run time. In a recent application, I took advantage of this function to create an application that can be extended to support new functionality in a risk-free way.