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Crystal Reports XI: Official Guide by Michael Voloshko, Annette Jonker, James Edkins, Neil FitzGerald

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Chapter 4 Understanding and Implementing Formulas

In this chapter

Introduction 98

Using the Formula Workshop 98

Using the Workshop Formula Editor 103

Creating Formulas with the Formula Expert 122

Using the Formula Extractor to Create Custom Functions 123

The Multi-Pass Reporting Process of the Crystal Reports Engine 125

Troubleshooting 127

Crystal Reports in the Real World—Custom Functions 128

Introduction

Chapter 2, “Selecting and Grouping Data,” introduced the concept of formulas, and you saw how to create them and subsequently drop them into a report from the Field Explorer. This chapter explores the Formula Editor in more detail.

Formulas provide great flexibility and power when creating Crystal Reports by enabling you to create derived

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