How to add SaveFileDialog to PowerShell Get-ADUser Export-CSV

Question

Hi,
I am having a bit of difficulties with getting the SaveFileDialog to work when I use the Get-ADUser export-CSV.
Current code:
$handler_Output_Click=
$User = Get-Aduser $textBox1.Text -Properties DisplayName,sAMAccountName,EmailAddress,Mobile,Company,Title,Enabled,LockedOut,Description,Created,Modified,LastLogonDate,AccountExpirationDate,AccountLockoutTime,BadLogonCount,CannotChangePassword,LastBadPasswordAttempt,PasswordLastSet,PasswordExpired,LogonWorkstations,CanonicalName | Select DisplayName,sAMAccountName,EmailAddress,Mobile,Company,Title,Enabled,LockedOut,Description,Created,Modified,LastLogonDate,AccountExpirationDate,AccountLockoutTime,BadLogonCount,CannotChangePassword,LastBadPasswordAttempt,PasswordLastSet,PasswordExpired,LogonWorkstations,CanonicalName | Export-CSV C:\temp\test.csv -NoTypeInformation ';' -encoding utf8
$richTextBox1.Text = "A file 'test.csv' has been created to C:\temp\ based on the user: $($textBox1.Text)"
Here a specific filename is already defined and I have to edit the code each time I want a different filename.
It would be perfect if I could implement the SaveFileDialog box so I have the ability to name the file before saving and possibly even have the option to select the file type (among .CSV and All files).
This it the export/output button itself:
$System_Drawing_Point = New-Object System.Drawing.Point
$System_Drawing_Point.X = 502
$System_Drawing_Point.Y = 38
$Output.Location = $System_Drawing_Point
$Output.Name = "Output"
$System_Drawing_Size = New-Object System.Drawing.Size
$System_Drawing_Size.Height = 23
$System_Drawing_Size.Width = 85
$Output.Size = $System_Drawing_Size
$Output.TabIndex = 2
$Output.Text = "Export as file"
$Output.UseVisualStyleBackColor = $True
$Output.add_Click($handler_Output_Click)
# $form1.AcceptButton = $Output
$Output.DataBindings.DefaultDataSourceUpdateMode = 0
$form1.Controls.Add($Output)
And in the beginning of my script I also have defined the following:
[System.Windows.Forms.Application]::EnableVisualStyles();
[reflection.assembly]::loadwithpartialname("System.Windows.Forms") | Out-Null
[reflection.assembly]::loadwithpartialname("System.Drawing") | Out-Null
[reflection.assembly]::loadwithpartialname("System.Windows.Forms.SaveFileDialog") | Out-Null
And also:
$Output = New-Object System.Windows.Forms.Button
Any ideas how can I implement the SaveFileDialog so when I press the "Export as file" button the PowerShell command "Get-Aduser $textBox1.Text -Properties DisplayName,sAMAc..." is ran and I can choose the file name from a pop-up
dialog box where to save the file and also put a filename? Currently I have to edit the code in order to assign a new file name (or go rename the file from that location).
Thank you in advance,
Henri
EDIT:
I know that the below is the answer to the SaveFileDialog, however I cannot imagine how I could implement it to my script into the "Get-Aduser $textBox1.Text -Properties a,b,c,d | select a,b,c,d | Export-CSV C:\temp\test.csv" cmdlet.
Function Get-SaveFile($initialDirectory)
[System.Reflection.Assembly]::LoadWithPartialName("System.windows.forms") |
Out-Null
$SaveFileDialog = New-Object System.Windows.Forms.SaveFileDialog
$SaveFileDialog.initialDirectory = $initialDirectory
$SaveFileDialog.filter = "All files (*.*)| *.*"
$SaveFileDialog.ShowDialog() | Out-Null
$SaveFileDialog.filename

Answer 1

Just run the dialog before exporting the file.  Why is that a problem?
\_(ツ)_/
It works now! I made some modifications and it works. Thank you very much for the advice.
$handler_Output_Click={
Add-Type -AssemblyName System.Windows.Forms
$SaveAs1 = New-Object System.Windows.Forms.SaveFileDialog
$SaveAs1.Filter = "CSV Files (*.csv)|*.csv|Text Files (*.txt)|*.txt|Excel Worksheet (*.xls)|*.xls|All Files (*.*)|*.*"
$SaveAs1.SupportMultiDottedExtensions = $true;
$SaveAs1.InitialDirectory = "C:\temp\"
if($SaveAs1.ShowDialog() -eq 'Ok'){
$User = Get-Aduser $textBox1.Text -Properties DisplayName,sAMAccountName,EmailAddress,Mobile,Company,Title,Enabled,LockedOut,Description,Created,Modified,LastLogonDate,AccountExpirationDate,AccountLockoutTime,BadLogonCount,CannotChangePassword,LastBadPasswordAttempt,PasswordLastSet,PasswordExpired,LogonWorkstations,CanonicalName | Select DisplayName,sAMAccountName,EmailAddress,Mobile,Company,Title,Enabled,LockedOut,Description,Created,Modified,LastLogonDate,AccountExpirationDate,AccountLockoutTime,BadLogonCount,CannotChangePassword,LastBadPasswordAttempt,PasswordLastSet,PasswordExpired,LogonWorkstations,CanonicalName | Export-CSV $($SaveAs1.filename) -NoTypeInformation ';' -Encoding UTF8
$richTextBox1.Text = "A file $($SaveAs1.filename) has been created based on the user: $($textBox1.Text)"