Return 输入结果后到菜单

Question

我正在制作 Show-Menu PS 脚本。用户输入并获得结果后。他应该会再次看到菜单，而不是“输入用户 ID：”

我知道这可以通过删除 Show-Menu 来实现，但是我的命令没有选择我的用户输入。

提前致谢！

function Show-Menu {
    param (
        [string]$Title = 'UserInfo V3.1'
    )

    Write-Host "Enter the user ID: " -ForegroundColor Cyan -NoNewline
    Read-Host 
    Write-Host ""   
    Write-Host "================ $Title ================"   
    Write-Host "Press 'U' for general user info."
    Write-Host "Press 'P' for account and password information."
    Write-Host "Press 'C' for computer info."
    Write-Host "Press 'G' for Virtual Applications (AVC)."
    write-Host "Press 'S' for SNOW info details"
    Write-Host "Press 'Q' to  Quit."
    write-Host "=============================================="
}

do {
    $userName = Show-Menu 
    $Selection = Read-Host "Please make a selection"
    switch ($Selection) {
        'U' { Get-ADUser -Identity $Username; pause }
    }
} until ($Selection -eq 'q')

Answer 1

如果 Show-Menu 仅应 显示菜单 ，则使用 Read-Host 提示用户输入显然是不合适的。将该部分移出 Show-Menu 函数：

function Show-Menu {
    param (
        [string]$Title = 'UserInfo V3.1'
    )

    Write-Host ""   
    Write-Host "================ $Title ================"   
    Write-Host "Press 'U' for general user info."
    Write-Host "Press 'P' for account and password information."
    Write-Host "Press 'C' for computer info."
    Write-Host "Press 'G' for Virtual Applications (AVC)."
    write-Host "Press 'S' for SNOW info details"
    Write-Host "Press 'Q' to  Quit."
    write-Host "=============================================="
}

Write-Host "Enter the user ID: " -ForegroundColor Cyan -NoNewline
$userName = Read-Host 

do {
    Show-Menu 
    $Selection = Read-Host "Please make a selection"
    switch ($Selection) {
        'U' { Get-ADUser -Identity $Username; pause }
    }
} until ($Selection -eq 'q')

Answer 2

[您可能会发现仅使用 Out-Gridview cmdlet 会更简单。如果您可以安装的话，可以使用 text-only 控制台版本。]

以下是一种略有不同的方法。它接受可能的菜单选项列表，并且只接受这些项目或 x 作为有效选项。

我认为代码相当明显，所以我将展示它……以及屏幕输出。 [咧嘴一笑]

function Get-MenuChoice
    {
    [CmdletBinding ()]
    Param
        (
        [Parameter (
            Mandatory,
            Position = 0
            )]
            [string[]]
            $MenuList,

        [Parameter (
            Position = 1
            )]
            [string]
            $Title,

        [Parameter (
            Position = 2
            )]
            [string]
            $Prompt = 'Please enter a number from the above list or "x" to exit '
        
        )

    $ValidChoices = 0..$MenuList.GetUpperBound(0) + 'x'
    $Choice = ''
    while ([string]::IsNullOrEmpty($Choice))
        {
        Write-Host $Title
        foreach ($Index in 0..$MenuList.GetUpperBound(0))
            {
            Write-Host ('{0} - {1}' -f $Index, $MenuList[$Index])
            }
        $Choice = Read-Host -Prompt $Prompt
        Write-Host ''

        if ($Choice -notin $ValidChoices)
            {
            [System.Console]::Beep(1000, 300)
            Write-Warning ''
            Write-Warning ('    [ {0} ] is not a valid selection.' -f $Choice)
            Write-Warning '    Please try again.'
            Write-Warning ''

            $Choice = ''

            pause
            }
        }

    # send it out to the caller
    if ($Choice -eq 'x')
        {
        'Exit'
        }
        else
        {
        $Choice
        }
    } # end >>> function Get-MenuChoice


'***** demo usage below *****'

$MenuList = @(
    'An Item'
    'Some Other Item'
    'Middle Menu Item'
    'Yet Another Item'
    'The Last Choice'
    )

$Choice = Get-MenuChoice -MenuList $MenuList

'You chose [ {0} ] giving you [ {1} ].' -f $Choice, $MenuList[$Choice]

一个无效输入和一个有效输入的输出...

0 - An Item
1 - Some Other Item
2 - Middle Menu Item
3 - Yet Another Item
4 - The Last Choice
Please enter a number from the above list or "x" to exit : 66

WARNING: 
WARNING:     [ 66 ] is not a valid selection.
WARNING:     Please try again.
WARNING: 
Press Enter to continue...: 

0 - An Item
1 - Some Other Item
2 - Middle Menu Item
3 - Yet Another Item
4 - The Last Choice
Please enter a number from the above list or "x" to exit : 1

You chose [ 1 ] giving you [ Some Other Item ].

Return 输入结果后到菜单

Return to menu after the input result

powershell

do-while