powershell - powershell中的列表框-集合还是多维数组？

Question

我正在使用以下代码创建一个列表框，并使用它根据列表框中的显示名称重新启动计算机。我实际上想用实际的计算机名称替换显示名称。我可以为此使用数组吗？我仍然习惯于powershell。如果我不能做一个数组，列表框中是否有可以存储计算机名称的属性或集合？

Add-Type -AssemblyName System.Windows.Forms
Add-Type -AssemblyName System.Drawing

$form = New-Object System.Windows.Forms.Form
$form.Text = 'Select a Computer'
$form.Size = New-Object System.Drawing.Size(300,200)
$form.StartPosition = 'CenterScreen'

$OKButton = New-Object System.Windows.Forms.Button
$OKButton.Location = New-Object System.Drawing.Point(75,120)
$OKButton.Size = New-Object System.Drawing.Size(75,23)
$OKButton.Text = 'OK'
$OKButton.DialogResult = [System.Windows.Forms.DialogResult]::OK
$form.AcceptButton = $OKButton
$form.Controls.Add($OKButton)

$CancelButton = New-Object System.Windows.Forms.Button
$CancelButton.Location = New-Object System.Drawing.Point(150,120)
$CancelButton.Size = New-Object System.Drawing.Size(75,23)
$CancelButton.Text = 'Cancel'
$CancelButton.DialogResult = [System.Windows.Forms.DialogResult]::Cancel
$form.CancelButton = $CancelButton
$form.Controls.Add($CancelButton)

$label = New-Object System.Windows.Forms.Label
$label.Location = New-Object System.Drawing.Point(10,20)
$label.Size = New-Object System.Drawing.Size(280,20)
$label.Text = 'Please select a computer:'
$form.Controls.Add($label)

$listBox = New-Object System.Windows.Forms.ListBox
$listBox.Location = New-Object System.Drawing.Point(10,40)
$listBox.Size = New-Object System.Drawing.Size(260,20)
$listBox.Height = 80

[void] $listBox.Items.Add('Screen in building 1 first floor')
[void] $listBox.Items.Add('Screen in building 1 second floor')
[void] $listBox.Items.Add('Screen in building 2 4th floor')
[void] $listBox.Items.Add('Screen in building 3 basement')

$form.Controls.Add($listBox)

$form.Topmost = $true

$result = $form.ShowDialog()

if ($result -eq [System.Windows.Forms.DialogResult]::OK)
{
    $c = Get-Credential Domain\Username
    Restart-Computer -ComputerName "Variable 2 of selection from listbox" -Credential $c -Force
    $x = $listBox.SelectedItem
    $x
}

标签： powershelllistbox

Answer 1

更新：在下面的示例中，我将使用 Active Directory 中的计算机Import-Module ActiveDirectory

为了listbox使用多维数组向您添加项目，我们可以使用 anObject和 theNoteProperty添加到listbox

前任：

#This example I am grabbing all computers from AD with the OS of windows server -- all windows servers
Import-Module ActiveDirectory
#Using the Name property for reboot and the Description for the listbox... you can use a different attribute if you like
$Computers = Get-ADComputer -filter {OperatingSystem -like "Windows Server*" -and Enabled -eq $true} -Properties Name, Description, OperatingSystem  | Select Name, Description, OperatingSystem

$listboxCollection =@()

foreach($Computer in $Computers)
{

    $Object = New-Object Object 
    $Object | Add-Member -type NoteProperty -Name CompName -Value $Computer.Name
    $Object | Add-Member -type NoteProperty -Name Values -Value $Computer.Description
    #fill the $listboxCollection
    $listboxCollection += $Object
}

#Add collection to the $listbox
$listBox.Items.AddRange($listboxCollection)

如果您要从这里显示您的表单，您的所有条目都将显示为System.Object。要从 to 中的Decription每个集合中获取$listboxCollection，我们已经告诉它ValueMemberand DisplayMember。

前任：

#This is using the properties above to display the correct item
$listBox.ValueMember = "CompName"
$listBox.DisplayMember = "Values"

与您的原始帖子保持一致，要获得“确定”按钮上的选定项目listbox，您需要输入一个条件。但是，有几种不同的方法可以处理此事件。

前任：

#show form as dialog
$result = $form.ShowDialog()

if($result = [System.Windows.Forms.DialogResult]::OK)
{
    $selectedComputer = $listBox.SelectedItem.CompName  
    Restart-Computer -ComputerName $selectedComputer -Credential Get-Credential Domain\Username -Force
}

变量$selectedComputer将是选定的计算机。注意：在这个例子中，没有任何检查来确保有一个有效的选择。

完整的解决方案：

Add-Type -AssemblyName System.Windows.Forms
Add-Type -AssemblyName System.Drawing


#This example I am grabbing all computers from AD with the OS of windows server -- all windows servers
Import-Module ActiveDirectory
#Using the Name property for reboot and the Description for the listbox... you can use a different attribute if you like
$Computers = Get-ADComputer -filter {OperatingSystem -like "Windows Server*" -and Enabled -eq $true} -Properties Name, Description, OperatingSystem  | Select Name, Description, OperatingSystem

$form = New-Object System.Windows.Forms.Form
$form.Text = 'Select a Computer'
$form.Size = New-Object System.Drawing.Size(300,200)
$form.StartPosition = 'CenterScreen'

$listBox = New-Object System.Windows.Forms.ListBox
$listBox.Location = New-Object System.Drawing.Point(10,40)
$listBox.Size = New-Object System.Drawing.Size(260,20)
$listBox.Height = 80

#create an empty collection to use later
$listboxCollection =@()

foreach($Computer in $Computers)
{

    $Object = New-Object Object 
    $Object | Add-Member -type NoteProperty -Name CompName -Value $Computer.Name
    $Object | Add-Member -type NoteProperty -Name Values -Value $Computer.Description
    $listboxCollection += $Object
}

$listBox.Items.AddRange($listboxCollection)

#This is using the properties above to display the correct item
$listBox.ValueMember = "CompName"
$listBox.DisplayMember = "Values"


#add listbox to form
$form.Controls.Add($listBox)

#Ok Button
$OKButton = New-Object System.Windows.Forms.Button
$OKButton.Location = New-Object System.Drawing.Point(75,120)
$OKButton.Size = New-Object System.Drawing.Size(75,23)
$OKButton.Text = 'OK'
$OKButton.DialogResult = [System.Windows.Forms.DialogResult]::OK
$form.AcceptButton = $OKButton
$form.Controls.Add($OKButton)

#keep on top
$form.Topmost = $true

#show form as dialog
$result = $form.ShowDialog()

if($result = [System.Windows.Forms.DialogResult]::OK)
{
    #this tells it to get the Name of the property and not just the Item
    $selectedComputer = $listBox.SelectedItem.CompName    
    Restart-Computer -ComputerName $selectedComputer -Credential Get-Credential Domain\Username -Force
}

注意：如果您使用 Active Directory 查询，您的计算机必须都具有NameandDescription属性（当然，除非您计划处理空/空值）