Powershell - 使用If有多个复选框

时间：2018-04-02 13:54:25

标签： powershell

我有一个长脚本，为用户提供提示：输入票号（暂时注释掉），输入电子邮件地址（也注释）并从一系列4个复选框中选择。这个想法是一个新人可以访问4个不同位置的任何组合。 2个位置由1个管理员处理，另2个由单个管理员处理（IE，A＆amp; B由管理员A处理，C由管理员B处理，D由C管理）。因此，我编写了一个长脚本，其中包含每个位置组合的代码片段，没有重复。因此，您可以选择A，AB，AC，AD，ABC，ABD等等。

如果我选择的代码只是在选择A，B，C或D时发送电子邮件，那么一切都很有效。当我包含代码时，比如选择A＆amp; B，脚本无法正常工作。

示例：我选择包含对建筑物A的访问权限。发送的电子邮件说用户需要访问A. 另一个例子：我选择包含对建筑物B的访问。发送的电子邮件说用户需要访问B. 问题的最后一个例子：我选择包含对建筑物A和B的访问。我得到一个提示，包括对A的访问以及包含对A和B的访问的提示，但是我收到2封电子邮件以包含对A的访问权限。我应该得到1个提示和1个电子邮件，同时说明对A和B的访问。

为了简洁起见，除了代码A和A＆amp; A之外，我已经修剪了很多代码以删除所有组合。 B.如果您需要我提供更多内容，请告诉我。

# initialize the script
    if ($startupvariables) { try {Remove-Variable -Name startupvariables  -Scope Global -ErrorAction SilentlyContinue } catch { } }
    New-Variable -force -name startupVariables -value ( Get-Variable | ForEach-Object { $_.Name } )

# make sure the cmd window is not closed
    Write-Output "Don't close this window!"

    [System.Reflection.Assembly]::LoadWithPartialName('Microsoft.VisualBasic') | Out-Null
    $Separator = ".", "@"

# advise what the script does
    Add-Type -AssemblyName PresentationCore,PresentationFramework
    $ButtonType = [System.Windows.MessageBoxButton]::OKCancel
    $MessageIcon = [System.Windows.MessageBoxImage]::Warning
    $MessageTitle = "Building Access - US Corp Locations"
    $MessageBody = "This script sends the building admins for the US corporate locations an email advising them that a user needs access to their location.`n`nTo use it, enter the below information:`n`n`n`tSCTask Ticket Number`n`n`tUser's Email Address`n`n`tBuilding Access Requested`n`n`nIf this is the script you want to use, click OK.`nIf not, click Cancel."
    $Result = [System.Windows.MessageBox]::Show($MessageBody,$MessageTitle,$ButtonType,$MessageIcon)

    if ($Result -eq "Cancel")
    {
        Exit-PSSession
    }
    else
    {

# get the ticket number
###################
#    $Ticket = [Microsoft.VisualBasic.Interaction]::InputBox("Enter the SCTask ticket number" , "Ticket Number")
$Ticket = 1234567890
###################
# get the user id via the email address
###################
#    $UserID = [Microsoft.VisualBasic.Interaction]::InputBox("Enter the user's email address" , "User Email Address")
$UserID = "xxxxxxxxxxx.com"
###################
    $User = $UserID.split($Separator)
    $Firstname = $User[0].substring(0,1).toupper()+$User[0].substring(1).tolower()
    $Lastname = $User[1].substring(0,1).toupper()+$User[1].substring(1).tolower()
    $User = $Firstname, $Lastname

# get the local username
    $Username = [System.Environment]::UserName

# provide checkboxes for locations requested
    function Location_Access{
    [void] [System.Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms")
    [void] [System.Reflection.Assembly]::LoadWithPartialName("System.Drawing") 

    $Form = New-Object System.Windows.Forms.Form
    $Form.width = 415
    $Form.height = 235
    $Form.Text = ”Select Building Locations"
    $Font = New-Object System.Drawing.Font("Verdana",11)
    $Form.Font = $Font

    $MyGroupBox = New-Object System.Windows.Forms.GroupBox
    $MyGroupBox.Location = '5,5'
    $MyGroupBox.size = '385,135'

    $Checkbox1 = New-Object System.Windows.Forms.Checkbox
    $Checkbox1.Location = '20,20'
    $Checkbox1.size = '360,25'
    $Checkbox1.Checked = $false 
    $Checkbox1.Text = "World Headquarters (Maumee, OH)"
    $CB1 = "World Headquarters"

    $Checkbox2 = New-Object System.Windows.Forms.Checkbox
    $Checkbox2.Location = '20,45'
    $Checkbox2.size = '360,25'
    $Checkbox2.Checked = $false 
    $Checkbox2.Text = "Maumee Technology Center (Maumee, OH)"
    $CB2 = "Maumee Technology Center"

    $Checkbox3 = New-Object System.Windows.Forms.Checkbox
    $Checkbox3.Location = '20,70'
    $Checkbox3.size = '360,25'
    $Checkbox3.Checked = $false 
    $Checkbox3.Text = "Global IT Center/Longbow (Maumee, OH)"
    $CB3 = "Global IT Center/Longbow"

    $Checkbox4 = New-Object System.Windows.Forms.Checkbox
    $Checkbox4.Location = '20,95'
    $Checkbox4.size = '360,25'
    $Checkbox4.Checked = $false 
    $Checkbox4.Text = "Novi (Novi, MI)"
    $CB4 = "Novi"

    $OKButton = new-object System.Windows.Forms.Button
    $OKButton.Location = '10,150'
    $OKButton.Size = '90,35' 
    $OKButton.Text = 'OK'
    $OKButton.DialogResult=[System.Windows.Forms.DialogResult]::OK
    $CancelButton = new-object System.Windows.Forms.Button
    $CancelButton.Location = '110,150'
    $CancelButton.Size = '90,35'
    $CancelButton.Text = "Cancel"
    $CancelButton.Add_Click({$objForm.Close()})
    $CancelButton.DialogResult=[System.Windows.Forms.DialogResult]::Cancel

    $form.Controls.AddRange(@($MyGroupBox,$OKButton,$CancelButton))
    $MyGroupBox.Controls.AddRange(@($Checkbox1,$Checkbox2,$Checkbox3,$Checkbox4))
    $form.AcceptButton = $OKButton
    $form.CancelButton = $CancelButton
    $form.Add_Shown({$form.Activate()})    
    $dialogResult = $form.ShowDialog()

    if ($DialogResult -eq "OK")
    {
    # if WHQ is selected
        if ($Checkbox1.Checked)
        {
            $subject = "Ticket $Ticket - $User's Building Access Request"
            $body = @"
            <html>
            <body style="font-family:calibri"> 
            Team,<br>
            <br>
            <br>
            Per ticket $Ticket, $User is requesting building access to:<br>
            <br>
            <br>
            <b><u>$CB1</b></u><br>
            <br>
            <br>
            <br>
            Thank You,<br>
            <br>
            IT Service Desk<br>
            <br>
            ------------------------------------------------------------------ <br>
            IT Service Desk Operation Information <br>
            ------------------------------------------------------------------ <br>
            Hours of Operation       :    24 hours a day<br>
            xxxxxxxxxxxxxxxx
            </body>
            </html>
"@
        }
        # create confirmation message
            $ButtonType = [System.Windows.MessageBoxButton]::YesNo
            $MessageIcon = [System.Windows.MessageBoxImage]::Warning
            $MessageTitle = "Corporate Building Access Request"
            $MessageBody = "The information you have entered is show below:`n`n`nTicket Number: $Ticket`n`nUser's Email Address: $UserID`n`nAccess To: $CB1`n`n`nIf you would like to send the email, click Yes.`nOtherwise, click No."
            $Result = [System.Windows.MessageBox]::Show($MessageBody,$MessageTitle,$ButtonType,$MessageIcon)
            if ($Result -eq "No")
            {
                Exit-PSSession
            }
            else
        # send email
            {
                Send-MailMessage -To "<$Username@xxxx.com>" -from "<itservicedesk@xxxx.com>" -Subject $subject -SmtpServer "mailrelay.xxxx.com" -BodyAsHtml -body $body
            }
    # if WHQ & MTC is selected
        elseif ($Checkbox1.Checked -And $Checkbox2.Checked)
        {
            $subject = "Ticket $Ticket - $User's Building Access Request"
            $body = @"
            <html>
            <body style="font-family:calibri"> 
            Team,<br>
            <br>
            <br>
            Per ticket $Ticket, $User is requesting building access to:<br>
            <br>
            <br>
            <b><u>$CB1 & $CB2</b></u><br>
            <br>
            <br>
            <br>
            Thank You,<br>
            <br>
            IT Service Desk<br>
            <br>
            ------------------------------------------------------------------ <br>
            IT Service Desk Operation Information <br>
            ------------------------------------------------------------------ <br>
            Hours of Operation       :    24 hours a day<br>
            xxxxxxxxx
            </body>
            </html>
"@
        }
        # create confirmation message
            $ButtonType = [System.Windows.MessageBoxButton]::YesNo
            $MessageIcon = [System.Windows.MessageBoxImage]::Warning
            $MessageTitle = "Corporate Building Access Request"
            $MessageBody = "The information you have entered is show below:`n`n`nTicket Number: $Ticket`n`nUser's Email Address: $UserID`n`nAccess To: $CB1 & $CB2`n`n`nIf you would like to send the email, click Yes.`nOtherwise, click No."
            $Result = [System.Windows.MessageBox]::Show($MessageBody,$MessageTitle,$ButtonType,$MessageIcon)
            if ($Result -eq "No")
            {
                Exit-PSSession
            }
            else
        # send email
            {
                Send-MailMessage -To "<$Username@xxxx.com>" -from "<itservicedesk@xxxx.com>" -Subject $subject -SmtpServer "mailrelay.xxxx.com" -BodyAsHtml -body $body
            }

    }
    elseif ($DialogResult -eq "Cancel")
    {
        break
    }
}
Location_Access
}

Function Clean-Memory {
    Get-Variable |
        Where-Object { $startupVariables -notcontains $_.Name } |
            ForEach-Object {
            try { Remove-Variable -Name "$($_.Name)" -Force -Scope "global" -ErrorAction SilentlyContinue -WarningAction SilentlyContinue}
                catch { }
 }
 }

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我不应该得到中间提示，只有第二个提示选择两个位置。每个提示都包含一封用于建筑物访问的电子邮件。但是，我收到了2封电子邮件，用于访问第一栋楼，也没有提到第二栋楼。

我知道这很奇怪，可能看起来很复杂。请告诉我您可能需要的其他信息。如果需要，我可以包含完整的代码;只是想减少尽可能多的额外费用。

更新：运行脚本时出错

You cannot call a method on a null-valued expression.
At line:109 char:42
+ $MyGroupBox.Controls | % {if($_.Checked){[Void]$TextTotal.AppendLine($_.Text);[V ...
+                                          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull

You cannot call a method on a null-valued expression.
At line:142 char:154
+ ... `nAccess To: $($TextTotal.ToString())`n`n`nIf you would like to send the email,  ...
+                    ~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull

1 个答案:

答案 0 :(得分：1)

我认为您需要根据检查的元素构建最终消息。 在表单showdialog调用之后添加这段代码（ $ dialogResult = $ form.ShowDialog（））

$CheckedBoxes = New-Object System.Text.StringBuilder
$CheckedBoxesForEmail = New-Object System.Text.StringBuilder
$MyGroupBox.Controls | % {if($_.Checked){[Void]$TextTotal.AppendLine($_.Text);[Void]$CheckedBoxesForEmail.AppendLine('<b><u>{0}</b></u><br>' -f $_.Text)}}

然后为每个复选框丢弃所有那些不必要的IF语句。我已将变量 $ CB1 更改为此 $（$ CheckedBoxesForEmail.ToString（））以及此 $（$ TextTotal.ToString（））。那些将带有你想要的所有文字。

$CheckedBoxes = New-Object System.Text.StringBuilder
$CheckedBoxesForEmail = New-Object System.Text.StringBuilder
$MyGroupBox.Controls | % {if($_.Checked){[Void]$TextTotal.AppendLine($_.Text);[Void]$CheckedBoxesForEmail.AppendLine('<b><u>{0}</b></u><br>' -f $_.Text)}}

if ($DialogResult -eq "OK")
    {
            $subject = "Ticket $Ticket - $User's Building Access Request"
            $body = @"
            <html>
            <body style="font-family:calibri"> 
            Team,<br>
            <br>
            <br>
            Per ticket $Ticket, $User is requesting building access to:<br>
            <br>
            <br>$($CheckedBoxesForEmail.ToString())<br>
            <br>
            <br>
            Thank You,<br>
            <br>
            IT Service Desk<br>
            <br>
            ------------------------------------------------------------------ <br>
            IT Service Desk Operation Information <br>
            ------------------------------------------------------------------ <br>
            Hours of Operation       :    24 hours a day<br>
            xxxxxxxxxxxxxxxx
            </body>
            </html>
"@
        }
        # create confirmation message
            $ButtonType = [System.Windows.MessageBoxButton]::YesNo
            $MessageIcon = [System.Windows.MessageBoxImage]::Warning
            $MessageTitle = "Corporate Building Access Request"
            $MessageBody = "The information you have entered is show below:`n`n`nTicket Number: $Ticket`n`nUser's Email Address: $UserID`n`nAccess To: $($TextTotal.ToString())`n`n`nIf you would like to send the email, click Yes.`nOtherwise, click No."
            $Result = [System.Windows.MessageBox]::Show($MessageBody,$MessageTitle,$ButtonType,$MessageIcon)
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