How can I make Validate-set also to work for mandatory parameter input prompt?

Question

I use dynamic validate sets for my functions for mandatory parameters.

When not provided Powershell prompts and forces user to input.

However in this case, T

Answer 1

You can only use tab on ValidateSet You can see same behavior if you use Show-Command The only pre run validation is ValidateSet

try this:

Function Test-Function
{
    Param
    (
        [String]$NormalParameter,
        [ValidateSet('T1','T2','T3')]
        [String]$ValidateSetParameter,
        [ValidatePattern("[T4]|[T5]|[T6]")]
        [String]$ValidatePatternParameter,
        [ValidateScript({$_ -In ('T7','T8','T9')})]
        [String]$ValidateScriptParameter,
        [ValidateRange('A','C')]
        [String]$ValidateRangeParameter
    )   
}

Show-Command Test-Function