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In this chapter you learned the basics of data entry and validation. I demonstrated some of the more common data entry controls. I also showed you how to do some simple validation. When you work with data entry controls, it is always best to use properties of the control itself to do as much validation for you as possible.
Also in this chapter, I showed you a new way to do data binding by connecting the text value of one control to another. This makes for no-code data entry. At the end of the chapter, I showed you how the cut-and-paste functionality of Windows can bypass some of your validation code and cause problems. Sometimes these common helpful functions require workarounds that you may not have thought of.
Chapter 2 deals with designing user interface data entry screens. Validation will take a back seat to presentation in the next chapter.
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