Powershell - 让用户从一月到十二月的列表中进行选择

Question

我不是一个伟大的脚本编写者，而且我在翻译中迷失了......也许我做的完全错误......

我正在构建一个脚本，我希望用户从选项列表中进行选择，特别是一年中的月份。该结果稍后将在脚本中使用。

这是片段：

$optionQuit = New-Object System.Management.Automation.Host.ChoiceDescription "Quit", "Quit"
$option1 = New-Object System.Management.Automation.Host.ChoiceDescription "01-January", "01-January OU"
$option2 = New-Object System.Management.Automation.Host.ChoiceDescription "02-February", "02-February OU"
$option3 = New-Object System.Management.Automation.Host.ChoiceDescription "03-March", "03-March OU"
$option4 = New-Object System.Management.Automation.Host.ChoiceDescription "04-April", "04-April OU"
$option5 = New-Object System.Management.Automation.Host.ChoiceDescription "05-May", "05-May OU"
$option6 = New-Object System.Management.Automation.Host.ChoiceDescription "06-June", "06-June OU"
$option7 = New-Object System.Management.Automation.Host.ChoiceDescription "07-July", "07-July OU"
$option8 = New-Object System.Management.Automation.Host.ChoiceDescription "08-August", "08-August OU"
$option9 = New-Object System.Management.Automation.Host.ChoiceDescription "09-September", "09-September OU"
$option10 = New-Object System.Management.Automation.Host.ChoiceDescription "10-October", "10-October OU"
$option11 = New-Object System.Management.Automation.Host.ChoiceDescription "11-November", "11-November OU"
$option12 = New-Object System.Management.Automation.Host.ChoiceDescription "12-December", "12-December OU"
$options = [System.Management.Automation.Host.ChoiceDescription[]]($optionQuit, $option1, $option2, $option3, $option4. $option5, $option6, $option7, $option8, $option9, $option10, $option11, $option12)
$result = $host.ui.PromptForChoice($title, $message, $options, [int[]](0)) 

但是，我不断收到错误：

错误：使用“4”个参数调用“PromptForChoice”时出现异常：“对象引用未设置到对象的实例。” TestingMenu.ps1 (31, 1): 错误: 在行: 31 字符: 1 错误: + $result = $host.ui.PromptForChoice($title, $message, $options, [int[] ... 错误: + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~ 错误：+ CategoryInfo ：NotSpecified：(:) []，MethodInitationException 错误：+FullyQualifiedErrorId ：NullReferenceException 错误：

我不确定我错过了什么......而且我可能会让这变得比需要的更复杂......但最终变量 $result 应该类似于“04-April”。

知道我在这里缺少什么吗？

Answer 1

这个变体有效并且不是那么多余。如果不标记字母来选择，则用 & 和符号选择是没有意义的

# C:\Test\Choose-CUI.ps1
$choices=@(
  ("&Quit","Quit"),
  ("0&1-January","01-January OU"),
  ("0&2-February","02-February OU"),
  ("0&3-March","03-March OU"),
  ("0&4-April","04-April OU"),
  ("0&5-May","05-May OU"),
  ("0&6-June","06-June OU"),
  ("0&7-July","07-July OU"),
  ("0&8-August","08-August OU"),
  ("0&9-September","09-September OU"),
  ("1&0-October","10-October OU"),
  ("11-&November","11-November OU"),
  ("12-&December","12-December OU")
)
$choicedesc = New-Object System.Collections.ObjectModel.Collection[System.Management.Automation.Host.ChoiceDescription]
for($i=0; $i -lt $choices.length; $i++){
  $choicedesc.Add((New-Object System.Management.Automation.Host.ChoiceDescription $choices[$i] ) ) }
$Host.ui.PromptForChoice($caption, $message, $choicedesc, $default)

有这个输出

PS C:\Test> .\Choose-CUI.ps1
[Q] Quit
[1] 01-January
[2] 02-February
[3] 03-March
[4] 04-April
[5] 05-May
[6] 06-June
[7] 07-July

[8] 08-August
[9] 09-September
[0] 10-October
[N] 11-November
[D] 12-December
[?] Help
Choice[0]: