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May 7, 2002 Defining and Using Enumeration Tips: May 2002
Yehuda Shiran, Ph.D.
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Enumeration is common to many other programming languages. Enumeration associates a symbolic name with a set of predefined discrete values. Enumeration is very powerful in making your application a lot easier to maintain. Enumerated variables can only assume values out of the predefined set. As in other programming languages, you define an enumerated data type with the enum statement. The following enum statement enumerates the major TV networks in the US:
When you define a variable of type tvNetworkType, it can assume only one of the four values above: ABC, CBS, NBC, and FOX. Let's declare such a variable:
Let's assign it now the value of ABC:
To learn more on JScript .NET, go to Column 108, JScript .NET, Part II: Major Features.
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