User input data from previous script runs carrying forward

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Hello,

I've written the Powershell script below. It draws a form with user input boxes, labels and buttons. It gets user input via textboxes and saves the entered text values to variables. The variables are placed into specific fields in an HTML form template. The template is the message body used in the Send-MailMessage cmdlet.

So, the user enters values into the textboxes and clicks a button - Depending which button, it executes a different Send-MailMessage cmdlet, with different Message Body, variables, etc attached.

It works, for the most part. But it has one significant bug I cannot fathom. When I execute it the first time, it draws the form, allows me to enter my inputs and press the desired button. Then does not send the email. When I execute it the second time, (and let's say, this time, I enter different text values into the input boxes), it DOES send the email, but only containing the text values I entered from my ORIGINAL attempt.

Every time I run the script, it uses the values of the text-input I provided during my previous attempt. IF I close Powershell ISE and re-open, it clears out all of the variables and so has no previous values to use.

This happened with a similar script I wrote - I solved this exact issue by moving Send-MailMessage to the bottom, with the MessageBody variable/content being declared above this, and the input-box code above that.

Despite replicating the same order-structure, the problem remains. I suspect this is still a matter of how I am ordering the code, but all attempts to re-arrange have failed and re-produced the problem.

###############################DECLARE VARIABLES#############################

#region
#Declares all variables which do not include variables

$EmailFrom = "Name@email.com"
$SMTPServer = "0.0.0.0"
$SMTPPassword = Get-Content "\\foo\bar\mailpw.txt" | ConvertTo-SecureString
$SMTPCred = New-Object System.Management.Automation.PSCredential "MailUser", $SMTPPassword
$GetDate = get-date -uformat %d/%m/%y
$GetDate_ForEDRMS Product = get-date -uformat %Y%m%d
$CC = "Name@email.com"

#endregion

###############################FORMAT FORM###################################

#region
[void] [System.Reflection.Assembly]::LoadWithPartialName("System.Drawing") 
[void] [System.Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms") 

$objForm = New-Object System.Windows.Forms.Form 
$objForm.Text = "FORM SELECTOR"
$objForm.Size = New-Object System.Drawing.Size(300,1000) 
$objForm.StartPosition = "CenterScreen"

$objForm.KeyPreview = $True
$objForm.Add_KeyDown({
    if ($_.KeyCode -eq "Enter" -or $_.KeyCode -eq "Escape"){
        $objForm.Close()
    }
})
#endregion

###############################DRAW LABELS AND INPUTS########################

#region
#CREATE HEADER LABEL

$objLabel = New-Object System.Windows.Forms.Label
$objLabel.Location = New-Object System.Drawing.Size(10,5) 
$objLabel.Size = New-Object System.Drawing.Size(280,60) 
    $objLabel.Text = "                ICT On/Off-Boarding Form Selector: 

    1. Enter details relevant to desired form 
    2. Select corresponding button"
$objForm.Controls.Add($objLabel) 

#CREATE FIRSTNAME LABEL

$objLabel = New-Object System.Windows.Forms.Label
$objLabel.Location = New-Object System.Drawing.Size(10,65) 
$objLabel.Size = New-Object System.Drawing.Size(280,20) 
$objLabel.Text = "First Name:"
$objForm.Controls.Add($objLabel) 

#CREATE FIRSTNAME BUTTON

$Firstname = New-Object System.Windows.Forms.TextBox 
$Firstname.Location = New-Object System.Drawing.Size(10,85) 
$Firstname.Size = New-Object System.Drawing.Size(260,20)
$objForm.Controls.Add($Firstname) 

#CREATE SURNAME LABEL

$objLabel = New-Object System.Windows.Forms.Label
$objLabel.Location = New-Object System.Drawing.Size(10,115) 
$objLabel.Size = New-Object System.Drawing.Size(280,20) 
$objLabel.Text = "Surname:"
$objForm.Controls.Add($objLabel) 

#CREATE SURNAME BUTTON

$Surname = New-Object System.Windows.Forms.TextBox 
$Surname.Location = New-Object System.Drawing.Size(10,135) 
$Surname.Size = New-Object System.Drawing.Size(260,20) 
$objForm.Controls.Add($Surname) 

#CREATE USERNAME LABEL

$objLabel = New-Object System.Windows.Forms.Label
$objLabel.Location = New-Object System.Drawing.Size(10,165) 
$objLabel.Size = New-Object System.Drawing.Size(280,20) 
$objLabel.Text = "Username:"
$objForm.Controls.Add($objLabel) 

#CREATE USERNAME BUTTON

$Username = New-Object System.Windows.Forms.TextBox 
$Username.Location = New-Object System.Drawing.Size(10,185) 
$Username.Size = New-Object System.Drawing.Size(260,20) 
$objForm.Controls.Add($Username) 

#CREATE PHONE EXT LABEL

$objLabel = New-Object System.Windows.Forms.Label
$objLabel.Location = New-Object System.Drawing.Size(10,215) 
$objLabel.Size = New-Object System.Drawing.Size(280,20) 
$objLabel.Text = "Phone Extension:"
$objForm.Controls.Add($objLabel) 

#CREATE PHONE EXT BUTTON

$PhoneExt = New-Object System.Windows.Forms.TextBox 
$PhoneExt.Location = New-Object System.Drawing.Size(10,235) 
$PhoneExt.Size = New-Object System.Drawing.Size(260,20) 
$objForm.Controls.Add($PhoneExt)

#CREATE PHONE PIN LABEL

$objLabel = New-Object System.Windows.Forms.Label
$objLabel.Location = New-Object System.Drawing.Size(10,265) 
$objLabel.Size = New-Object System.Drawing.Size(280,20) 
$objLabel.Text = "Phone PIN:"
$objForm.Controls.Add($objLabel)  

#CREATE PHONE PIN  BUTTON

$PhonePIN = New-Object System.Windows.Forms.TextBox 
$PhonePIN.Location = New-Object System.Drawing.Size(10,285) 
$PhonePIN.Size = New-Object System.Drawing.Size(260,20) 
$objForm.Controls.Add($PhonePIN) 

#CREATE VM PIN LABEL

$objLabel = New-Object System.Windows.Forms.Label
$objLabel.Location = New-Object System.Drawing.Size(10,315) 
$objLabel.Size = New-Object System.Drawing.Size(280,20) 
$objLabel.Text = "Voicemail PIN:"
$objForm.Controls.Add($objLabel)  

#CREATE VM PIN BUTTON

$VMPIN = New-Object System.Windows.Forms.TextBox 
$VMPIN.Location = New-Object System.Drawing.Size(10,335) 
$VMPIN.Size = New-Object System.Drawing.Size(260,20) 
$objForm.Controls.Add($VMPIN) 

#CREATE EMPLOYEE POSITION LABEL

$objLabel = New-Object System.Windows.Forms.Label
$objLabel.Location = New-Object System.Drawing.Size(10,365) 
$objLabel.Size = New-Object System.Drawing.Size(280,20) 
$objLabel.Text = "Employee Position:"
$objForm.Controls.Add($objLabel)  

#CREATE EMPLOYEE POSITION BUTTON

$EmpPos = New-Object System.Windows.Forms.TextBox 
$EmpPos.Location = New-Object System.Drawing.Size(10,385) 
$EmpPos.Size = New-Object System.Drawing.Size(260,20) 
$objForm.Controls.Add($EmpPos) 

#CREATE DEVICE MAKE LABEL

$objLabel = New-Object System.Windows.Forms.Label
$objLabel.Location = New-Object System.Drawing.Size(10,415) 
$objLabel.Size = New-Object System.Drawing.Size(280,20) 
$objLabel.Text = "Device Make:"
$objForm.Controls.Add($objLabel)  

#CREATE DEVICE MAKE BUTTON

$DeviceMake = New-Object System.Windows.Forms.TextBox 
$DeviceMake.Location = New-Object System.Drawing.Size(10,435) 
$DeviceMake.Size = New-Object System.Drawing.Size(260,20) 
$objForm.Controls.Add($DeviceMake) 

#CREATE DEVICE MODEL LABEL

$objLabel = New-Object System.Windows.Forms.Label
$objLabel.Location = New-Object System.Drawing.Size(10,465) 
$objLabel.Size = New-Object System.Drawing.Size(280,20) 
$objLabel.Text = "Device Model:"
$objForm.Controls.Add($objLabel)  

#CREATE DEVICE MODEL BUTTON

$DeviceModel = New-Object System.Windows.Forms.TextBox 
$DeviceModel.Location = New-Object System.Drawing.Size(10,490) 
$DeviceModel.Size = New-Object System.Drawing.Size(260,20) 
$objForm.Controls.Add($DeviceModel) 

#CREATE SERIAL NUMBER LABEL

$objLabel = New-Object System.Windows.Forms.Label
$objLabel.Location = New-Object System.Drawing.Size(10,515) 
$objLabel.Size = New-Object System.Drawing.Size(280,20) 
$objLabel.Text = "Serial Number:"
$objForm.Controls.Add($objLabel)  

#CREATE SERIAL NUMBER BUTTON

$DeviceSerial = New-Object System.Windows.Forms.TextBox 
$DeviceSerial.Location = New-Object System.Drawing.Size(10,535) 
$DeviceSerial.Size = New-Object System.Drawing.Size(260,20) 
$objForm.Controls.Add($DeviceSerial) 

#CREATE MOBILE NUMBER LABEL

$objLabel = New-Object System.Windows.Forms.Label
$objLabel.Location = New-Object System.Drawing.Size(10,565) 
$objLabel.Size = New-Object System.Drawing.Size(280,20) 
$objLabel.Text = "Mobile Number:"
$objForm.Controls.Add($objLabel)  

#CREATE MOBILE NUMBER BUTTON

$Device_MobileNumber = New-Object System.Windows.Forms.TextBox 
$Device_MobileNumber.Location = New-Object System.Drawing.Size(10,585) 
$Device_MobileNumber.Size = New-Object System.Drawing.Size(260,20) 
$objForm.Controls.Add($Device_MobileNumber) 

#CREATE SIM NUMBER LABEL

$objLabel = New-Object System.Windows.Forms.Label
$objLabel.Location = New-Object System.Drawing.Size(10,615) 
$objLabel.Size = New-Object System.Drawing.Size(280,20) 
$objLabel.Text = "SIM Number:"
$objForm.Controls.Add($objLabel)  

#CREATE SIM NUMBER BUTTON

$Device_SIM = New-Object System.Windows.Forms.TextBox 
$Device_SIM.Location = New-Object System.Drawing.Size(10,635) 
$Device_SIM.Size = New-Object System.Drawing.Size(260,20) 
$objForm.Controls.Add($Device_SIM) 

#CREATE IMEI NUMBER LABEL

$objLabel = New-Object System.Windows.Forms.Label
$objLabel.Location = New-Object System.Drawing.Size(10,665) 
$objLabel.Size = New-Object System.Drawing.Size(280,20) 
$objLabel.Text = "IMEI Number:"
$objForm.Controls.Add($objLabel)  

#CREATE IMEI NUMBER BUTTON

$Device_IMEI = New-Object System.Windows.Forms.TextBox 
$Device_IMEI.Location = New-Object System.Drawing.Size(10,685) 
$Device_IMEI.Size = New-Object System.Drawing.Size(260,20) 
$objForm.Controls.Add($Device_IMEI) 

#endregion

###############################ADD BUTTONS###################################

#region
#Button: Welcome Email 

$WelcomeEmailButton = New-Object System.Windows.Forms.Button
$WelcomeEmailButton.Location = New-Object System.Drawing.Size(10,715)
$WelcomeEmailButton.Size = New-Object System.Drawing.Size(260,23)
$WelcomeEmailButton.Text = "New User ICT On-Boarding Email"
$WelcomeEmailButton.Add_Click($WelcomeEmailButton_OnClick)
$WelcomeEmailButton.Add_Click({$objForm.Close()})
$objForm.Controls.Add($WelcomeEmailButton)

#Button: Laptop Agreement 

$LaptopAgreement_Button = New-Object System.Windows.Forms.Button
$LaptopAgreement_Button.Location = New-Object System.Drawing.Size(10,740)
$LaptopAgreement_Button.Size = New-Object System.Drawing.Size(260,23)
$LaptopAgreement_Button.Text = "Employee Laptop Agreement"
$LaptopAgreement_Button.Add_Click($LaptopAgreementButton_OnClick)
$LaptopAgreement_Button.Add_Click({$objForm.Close()})
$objForm.Controls.Add($LaptopAgreement_Button)

#Button: Mobile Agreement

$MobileAgreement_Button = New-Object System.Windows.Forms.Button
$MobileAgreement_Button.Location = New-Object System.Drawing.Size(10,765)
$MobileAgreement_Button.Size = New-Object System.Drawing.Size(260,23)
$MobileAgreement_Button.Text = "Employee Mobile Phone Agreement"
$MobileAgreement_Button.Add_Click($MobileAgreementButton_OnClick)
$MobileAgreement_Button.Add_Click({$objForm.Close()})
$objForm.Controls.Add($MobileAgreement_Button)

#Button: Stage 1 Termination Email to MSP 

$Departing_Stage1toMSP_Button = New-Object System.Windows.Forms.Button
$Departing_Stage1toMSP_Button.Location = New-Object System.Drawing.Size(10,790)
$Departing_Stage1toMSP_Button.Size = New-Object System.Drawing.Size(260,23)
$Departing_Stage1toMSP_Button.Text = "Stage 1 Termination Email to MSP"
$Departing_Stage1toMSP_Button.Add_Click($Departing_Stage1toMSP_Button_OnClick)
$Departing_Stage1toMSP_Button.Add_Click({$objForm.Close()})
$objForm.Controls.Add($Departing_Stage1toMSP_Button)

#Button: Stage 2 Termination Email to MSP 

$Departing_Stage2toMSP_Button = New-Object System.Windows.Forms.Button
$Departing_Stage2toMSP_Button.Location = New-Object System.Drawing.Size(10,815)
$Departing_Stage2toMSP_Button.Size = New-Object System.Drawing.Size(260,23)
$Departing_Stage2toMSP_Button.Text = "Stage 2 Termination Email to MSP"
$Departing_Stage2toMSP_Button.Add_Click($Departing_Stage2toMSP_Button_Onclick)
$Departing_Stage2toMSP_Button.Add_Click({$objForm.Close()})
$objForm.Controls.Add($Departing_Stage2toMSP_Button)

#Button: Off-Boarding Email for Departing Staff

$OffBoarding_EmailTo_DepartingUser_Button = New-Object System.Windows.Forms.Button
$OffBoarding_EmailTo_DepartingUser_Button.Location = New-Object System.Drawing.Size(10,840)
$OffBoarding_EmailTo_DepartingUser_Button.Size = New-Object System.Drawing.Size(260,23)
$OffBoarding_EmailTo_DepartingUser_Button.Text = "Off-Boarding Email for Departing Staff"
$OffBoarding_EmailTo_DepartingUser_Button.Add_Click($OffBoarding_EmailTo_DepartingUser_Button_Onclick)
$OffBoarding_EmailTo_DepartingUser_Button.Add_Click({$objForm.Close()})
$objForm.Controls.Add($OffBoarding_EmailTo_DepartingUser_Button)

#Button: New User Request Email to MSP

$NewUserRequest_toMSP_Button = New-Object System.Windows.Forms.Button
$NewUserRequest_toMSP_Button.Location = New-Object System.Drawing.Size(10,865)
$NewUserRequest_toMSP_Button.Size = New-Object System.Drawing.Size(260,23)
$NewUserRequest_toMSP_Button.Text = "New User Request Email to MSP"
$NewUserRequest_toMSP_Button.Add_Click($NewUserRequest_toMSP_Button_Onclick)
$NewUserRequest_toMSP_Button.Add_Click({$objForm.Close()})
$objForm.Controls.Add($NewUserRequest_toMSP_Button)

#Button: Terminating Staff ICT Asset Return Form

$TerminatingStaff_AssetReturn_Button = New-Object System.Windows.Forms.Button
$TerminatingStaff_AssetReturn_Button.Location = New-Object System.Drawing.Size(10,890)
$TerminatingStaff_AssetReturn_Button.Size = New-Object System.Drawing.Size(260,23)
$TerminatingStaff_AssetReturn_Button.Text = "Terminating Staff ICT Asset Return Form"
$TerminatingStaff_AssetReturn_Button.Add_Click($TerminatingStaff_AssetReturn_Button_OnClick)
$TerminatingStaff_AssetReturn_Button.Add_Click({$objForm.Close()})
$objForm.Controls.Add($TerminatingStaff_AssetReturn_Button)

#endregion

###############################INITIALISE FORM###############################

#region
$objForm.Topmost = $True

$objForm.Add_Shown({$objForm.Activate()})
[void]$objForm.ShowDialog()
#endregion

###############################DECLARE Email Subject VARIABLES###############

#region


$WelcomeEmail_Subject = "$GetDate_ForEDRMS Product - $($Firstname.text) $($Surname.Text) - Welcome to Foo + ICT On-Boarding Details"
$LaptopAgreement_Subject = "$GetDate_ForEDRMS Product - $($Firstname.text) $($Surname.Text) - Foo Employee Mobile Device Agreement - Laptop"
$MobileAgreement_Subject = "$GetDate_ForEDRMS Product - $($Firstname.text) $($Surname.Text) - Foo Employee Mobile Device Agreement - Mobile Phone"
$Departing_Stage1toMSP_Subject = "$GetDate_ForEDRMS Product - $($Firstname.text) $($Surname.Text) - Foo Employee Mobile Device Agreement - Mobile Phone"
$Departing_Stage2toMSP_Subject = "$GetDate_ForEDRMS Product - $($Firstname.text) $($Surname.Text) - Foo Employee Mobile Device Agreement - Mobile Phone"
$OffBoarding_EmailTo_DepartingUser_Subject = "$GetDate_ForEDRMS Product - $($Firstname.text) $($Surname.Text) - Foo Employee Mobile Device Agreement - Mobile Phone"
$NewUserRequest_toMSP_Subject = "$GetDate_ForEDRMS Product - $($Firstname.text) $($Surname.Text) - Foo Employee Mobile Device Agreement - Mobile Phone"
$TerminatingStaff_AssetReturn_Subject = "$GetDate_ForEDRMS Product - $($Firstname.text) $($Surname.Text) - Foo Employee Mobile Device Agreement - Mobile Phone"

#endregion

###############################START TESTING VARIABLES#######################

#region
Write-host "###################################" -ForegroundColor Green
Write-host "Firstname is $($Firstname.Text)" -ForegroundColor Green
Write-Host "Surname is $($Surname.Text)" -ForegroundColor Green
Write-Host "Username is $($Username.Text)" -ForegroundColor Green
Write-Host "Phone Ext is $($PhoneExt.Text)" -ForegroundColor Green
Write-Host "Phone PIN is $($PhonePIN.Text)" -ForegroundColor Green
Write-Host "Voicemail PIN is $($VMPIN.Text)" -ForegroundColor Green
Write-host "Device Make is $($DeviceMake.Text)" -ForegroundColor Green
Write-Host "Device Model is $($DeviceModel.Text)" -ForegroundColor Green
Write-Host "Device SIM is $($Device_SIM.Text)" -ForegroundColor Green
Write-Host "Device IMEI is $($Device_IMEI.Text)" -ForegroundColor Green
Write-Host "Device Serial is $($DeviceSerial.Text)" -ForegroundColor Green
Write-Host "Employee Position is $($EmpPos.Text)" -ForegroundColor Green
Write-Host "Device Mobile Number is $($Device_MobileNumber.Text)" -ForegroundColor Green
Write-host "###################################" -ForegroundColor Green
#endregion

###############################DEFINE HTML MESSAGES##########################

#region

#New User Welcome Email

#region

$WelcomeEmail_Body = @"

<font face="Calibri">
Hi $($Firstname.text),
<br>
<br>
Welcome to Company! 
<br>
<br>
Please read through the <a href="https://EDRMS Product.Foo.com.au:8443/id:A345125/document/versions/latest ">ICT On-Boarding Guide</a>
<br>
<br>
Some of the information you will find in the guide includes:
<br>
<ul style="List-style-type:circle">
<li>MSP IT Service Desk contact details</li>
<li>Email signature</li>
<li>Adding Printers</li>
<li>VPN Access</li>
<li>Wi-Fi Access</li>
<li>Desk phone login</li>
</ul>
Accessing Webmail:
<Br>
You can access your emails in a web browser on any phone, tablet or computer with an internet connection:
<Br>
<ul style="List-style-type:circle">
<li>Go to <a href="https://mail.Foo.com.au">https://mail.Foo.com.au</a></li>
<li>Log in with Foo\$($Username.Text)</li>
<li>The password is your computer password</li>
</ul>
Your Personalised details:
<Br>
Username: $($Username.Text)
<Br>
Email:  $($Username.Text)@Company.com.au
<Br>
Phone Extension: $($PhoneExt.Text) (+61 02 9255 $($PhoneExt.Text)) Dial 0 for external calls.
<Br>
Phone Username: $($Username.Text)
<Br>
Phone PIN: $($PhonePin.Text)
<Br>
Voicemail PIN: $($VMPIN.Text)
<Br>
<Br>
Additionally, please find attached introductory documentation.
<Br>
<Br>
Please ensure you have read all, as knowledge of these policies is required. 
<Br>
<ul style="List-style-type:circle">
<li><a href="https://EDRMS Product.Foo.com.au:8443/id:A503866/document/versions/latest">Recognising Malicious Email</a></li>
<li><a href="https://EDRMS Product.Foo.com.au:8443/id:A499081/document/versions/latest">Information Security Policy</a></li>
<li><a href="https://EDRMS Product.Foo.com.au:8443/id:A496795/document/versions/latest">Information Classification DLM Guide</a></li>
<li><a href="https://EDRMS Product.Foo.com.au:8443/id:A501188/document/versions/latest">BYOD Policy</a></li>
<li><a href="https://EDRMS Product.Foo.com.au:8443/id:A499079/document/versions/latest">ICT Access Control and Use Policy</a></li>
<li><a href="https://EDRMS Product.Foo.com.au:8443/id:A526460/document/versions/latest">EDRMS Product Navigator Guide</a></li>
<li><a href="https://EDRMS Product.Foo.com.au:8443/id:A465801/document/versions/latest">EDRMS Product Connect Help Guide</a></li>
<li><a href="https://EDRMS Product.Foo.com.au:8443/id:A568499/document/versions/latest">VPN User Guide</a></li>
<li>Meeting Room AV guides:</a></li>
<ul>
	<li><a href="https://EDRMS Product.Foo.com.au:8443/id:A531741/document/versions/latest">Meeting Room 1 Table Input</a></li>
	<li><a href="https://EDRMS Product.Foo.com.au:8443/id:A531740/document/versions/latest">Using "Resident PC" in Meeting Rooms</a></li>
	<li><a href="https://EDRMS Product.Foo.com.au:8443/id:A524751/document/versions/latest">Overall AV User Guide</a></li>
</ul>
</ul>
Kind regards,
<Br>
<br>
<font face="calibri" color="#4682B4"><p style="font-size:1.4em;">Foo Bar
<br>
ICT Coordinator </p></font>
Telephone +02 9255 1767
<Br>
Mobile +0438 224 509
<Br>
<a href="Foo.Bar@Company.com.au">Foo.Bar@Company.com.au</a>
<Br>
AON Tower, Level 27, 201 Kent Street<BR>
Sydney NSW 2000 Australia<br>
<A HREF ="www.Company.com">www.Company.com</a>
<BR>
<br>
<a href="https://www.facebook.com/Companysydney/?utm_source=Company%20Esignature&utm_medium=Banner&utm_campaign=Facebook_Acquisition_Campaign&utm_term=Like%20Us">
  <img src="\\Foo1pwutil01\FooITInstall\PowerShell\Foo_SendWelcomeEmail\DS_OutlookSigPic.png" alt="https://www.facebook.com/Companysydney/?utm_source=Company%20Esignature&utm_medium=Banner&utm_campaign=Facebook_Acquisition_Campaign&utm_term=Like%20Us">
</a>
</font>

"@

#endregion

###############################EXECUTE COMMANDS##############################

#region

#Send Welcome Email

#region
$WelcomeEmailButton_OnClick = 
{
Send-MailMessage `
 -Credential $SMTPCred `
 -To "$Username@Company.com.au" `
 -From $EmailFrom `
 -CC $CC `
 -Subject ` $WelcomeEmail_Subject `
 -SmtpServer $SMTPServer `
 -Body $WelcomeEmail_Body `
 -BodyAsHtml
}
#endregion

#Employee Mobile Device Agreement - Laptop

#region
$LaptopAgreementButton_OnClick = 
{
Send-MailMessage `
 -Credential $SMTPCred `
 -To "$Username@Company.com.au" `
 -From $EmailFrom `
 -CC $CC `
 -Subject $LaptopAgreement_Subject `
 -SmtpServer $SMTPServer `
 -Body $LaptopAgreement_Body `
 -BodyAsHtml `
}
#endregion

#Employee Mobile Device Agreement - Mobile Phone

#region
$MobileAgreementButton_OnClick = 
{
Send-MailMessage `
 -Credential $SMTPCred `
 -To "$Username@Company.com.au" `
 -From $EmailFrom `
 -CC $CC `
 -Subject $MobileAgreement_Subject `
 -SmtpServer $SMTPServer `
 -Body $MobileAgreement_Body `
 -BodyAsHtml `
}
#endregion

#Departing User: Stage 1 Termination Email to MSP

#region
$Departing_Stage1toMSP_Button_Onclick = 
{
Send-MailMessage `
 -Credential $SMTPCred `
 -To "$Username@Company.com.au" `
 -From $EmailFrom `
 -CC $CC `
 -Subject $Departing_Stage1toMSP_Subject `
 -SmtpServer $SMTPServer `
 -Body $DepartingStage1toMSP_Body `
 -BodyAsHtml `
}
#endregion

#Departing User: Stage 2 Termination Email to MSP

#region
$Departing_Stage2toMSP_Button_Onclick = 
{
Send-MailMessage `
 -Credential $SMTPCred `
 -To "$Username@Company.com.au" `
 -From $EmailFrom `
 -Cc $CC `
 -Subject $Departing_Stage2toMSP_Subject `
 -SmtpServer $SMTPServer `
 -Body $DepartingStage2toMSP_Body `
 -BodyAsHtml `
}
#endregion

#Departing User: ICT Off-Boarding Email to Foo User

#region
$OffBoarding_EmailTo_DepartingUser_Button_Onclick = 
{
Send-MailMessage `
 -Credential $SMTPCred `
 -To "$Username@Company.com.au" `
 -From $EmailFrom `
 -CC $CC `
 -Subject $OffBoarding_EmailTo_DepartingUser_Subject `
 -SmtpServer $SMTPServer `
 -Body $OffBoarding_EmailTo_DepartingUser_Body `
 -BodyAsHtml `

}
#endregion

#New User Request Email to MSP

#region
$NewUserRequest_toMSP_Button_Onclick = 
{
Send-MailMessage `
 -Credential $SMTPCred `
 -To "$Username@Company.com.au" `
 -From $EmailFrom `
 -CC $CC `
 -Subject $NewUserRequest_toMSP_Subject `
 -SmtpServer $SMTPServer `
 -Body $NewUserRequest_toMSP_Body `
 -BodyAsHtml `
}
#endregion

#Terminating Staff ICT Asset Return Form

#region
$TerminatingStaff_AssetReturn_Button_OnClick = 
{
Send-MailMessage `
 -Credential $SMTPCred `
 -To "$Username@Company.com.au" `
 -From $EmailFrom `
 -CC $CC `
 -Subject $TerminatingStaff_AssetReturn_Subject `
 -SmtpServer $SMTPServer `
 -Body $TerminatingStaff_AssetReturn_Body `
 -BodyAsHtml `
}
#endregion

#endregion

What I have tried:

-Re-arranging code blocks to change the order in which regions execute
-Googling extensively and finding little that helps with such a specific problem
-Researching and implementing 3 different methods for clearing or removing variables to ensure the variable data is not carrying over to the next attempt (although this did not change the behaviour; and if it had, my fear would be that I would have no output, like during my first run after Powershell ISE is opened).

Posted 4-Dec-18 12:23pm

Member 14077673

Updated 7-Dec-18 6:17am

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Richard Deeming · Answer 1 · 2018-12-07T06:17:00

ShowDialog displays the form, and waits for the form to close.

You click a button, which sends an email using the subject and body variables, and then closes the form.

After the form has closed, you use the details entered on the form to construct the subject and body variables.

You need to construct the subject and body variables before you send the email. For example:

PowerShell

$WelcomeEmailButton_OnClick = 
{
    $WelcomeEmail_Subject = "$GetDate_ForEDRMS Product - $($Firstname.text) $($Surname.Text) - Welcome to Foo + ICT On-Boarding Details"
    
    $WelcomeEmail_Body = @"

<font face="Calibri">
Hi $($Firstname.text),
<br>
<br>
Welcome to Company! 
...
"@
    
    Send-MailMessage `
     -Credential $SMTPCred `
     -To "$Username@Company.com.au" `
     -From $EmailFrom `
     -CC $CC `
     -Subject ` $WelcomeEmail_Subject `
     -SmtpServer $SMTPServer `
     -Body $WelcomeEmail_Body `
     -BodyAsHtml
}