February 2019
Intermediate to advanced
626 pages
15h 51m
English
Content preview from Mastering Windows PowerShell Scripting - Third Edition
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Dynamic parameters
Dynamic parameters allow a developer to define the behavior of parameters when a function is run, rather than hardcoding that behavior in advance in a param block. Dynamic parameters can be used to overcome some of the limitations inherent in a param block. For example, it is possible to change the parameters presented by a command based on the value of another parameter. It is also possible to dynamically write validation, such as dynamically assigning a value for the ValidateSet attribute.
Dynamic parameters remain unpopular in the PowerShell community. They are relatively complex; that is, they are hard to define, and difficult to troubleshoot as they tend to silently fail rather than raising an error. Dynamic parameters ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.