我有下面的PowerShell脚本,我正试图适应在更大的脚本中使用。Powershell&取消按钮或ESC
function New-Choice {
<# .SYNOPSIS
The New-Choice function is used to provide extended control to a script author who writing code
that will prompt a user for information.
.PARAMETER Choices
An Array of Choices, ie Yes, No and Maybe
.PARAMETER Caption
Caption to present to end user
.EXAMPLE
PS C:\> New-Choice -Choices 'Yes','No' -Caption "PowerShell makes choices easy"
.NOTES
Author: Andy Schneider
Date: 5/6/2011
#>
[CmdletBinding()]
param(
[Parameter(Position=0, Mandatory=$True, ValueFromPipeline=$True)]
$Choices,
[Parameter(Position=1)]
$Caption,
[Parameter(Position=2)]
$Message
)
process {
$resulthash += @{}
for ($i = 0; $i -lt $choices.count; $i++)
{
$ChoiceDescriptions += @(New-Object System.Management.Automation.Host.ChoiceDescription ("&" + $choices[$i]))
$resulthash.$i = $choices[$i]
}
$AllChoices = [System.Management.Automation.Host.ChoiceDescription[]]($ChoiceDescriptions)
$result = $Host.UI.PromptForChoice($Caption,$Message, $AllChoices, 1)
$resulthash.$result -replace "&", ""
}
}
#new-choice -Choices "yes","no","maybe"
new-choice -Choices "Yes","No","Copy ALL","Cancel (Abort Script)" -Caption "Continue the Copy Process?"
我想让它这样,如果是,否或复制所有被选中时,它将采取适当的行动,而如果取消选中它结束脚本。不过,我也希望它能够选择取消按钮,按下ESC键或关闭窗口,都可以做同样的事情(结束脚本)。
在上面的示例中,如果选择其中一个,它将运行正常,并且您单击确定按钮(它会返回所选内容的值)。但是,如果窗口关闭,取消按钮选择或按ESC键被输入,它会生成以下错误:
Exception calling "PromptForChoice" with "4" argument(s): "An error of type "System.Management.Automation.Host.Promptin gException" has occurred." At C:\Documents and Settings\myPC\My Documents\test ui prompt.ps1:34 char:43 + $result = $Host.UI.PromptForChoice <<<< ($Caption,$Message, $AllChoices, 1) + CategoryInfo : NotSpecified: (:) [], MethodInvocationException + FullyQualifiedErrorId : DotNetMethodException
怎样可以捕获那些其他的“选项”,这样,如果他们中的一个选择,它打出的脚本&不会抛出上面的错误?
你在说什么用户界面? ISE?它没有问题。如果您有任何UI代码(winforms?),请尽可能共享它。 – stej 2012-03-12 20:23:14