Improving Your Attributes
summary
Dives into concrete parameter attributes: ValidateSet, ValidateRange, ValidateScript and regex examples that short‑circuit bad input, plus help and pipeline‑accepting flags. Demonstrates dynamic argument completers implemented as scriptblocks (parameters: commandName parameterName wordToComplete fakeBoundParameters), notes they run on every Tab, and shows using CompletionResult tooltips and Azure completers with caching. Shows writing class‑based argument transformation attributes that map usernames to GUIDs and shipping them in compiled modules; demos mostly work though some live calls fail.
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chapters (8)
- 0:00Introduction
- 1:51PowerShell attributes matter
- 5:24Parameter attributes uses
- 7:13Validation attributes
- 14:19Help for parameters
- 17:08Dynamic argument completers
- 26:38Custom transformation attributes
- 32:40Q&A
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