In this chapter, I have explained and demonstrated how we can use and create simple and complex expressions, and use them to generate values for properties. By applying this knowledge, you can create conditional formatting effects in your reports. The scope is an important factor in determining the result of certain expressions. There are many different functions you can use, and also create yourself and, in this chapter, I have looked at a couple of the possibilities.

In the following chapters, we are going to see more examples of how we can use expressions. It is important to remember that expressions should not be too complex due to performance and your report layout should not contain any business logic. Business logic belongs in the report dataset designer, the expressions in the layout should be user interface and formatting logic.