Need help with powershell DO WHILE statement...

Question

Hi,
Sorry but I'm a powershell newbie and I would be glad if someone could help me with this. I have created a test dialog where users can enter their password twice. When they click the OK button the script shall compare $PasswordBox.Text with $PasswordBox2.Text and if they are not equal then the dialog should not be closed (or should reopen) and focus set to object $PasswordBox.

How do I do that? I really don't know the behaviour and possibilities for forms and dialog.

I hope you understand my problem. Thanks a lot for any help.

best regards Tor

Script:

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

function frGetNewUserCreds {

$form = New-Object System.Windows.Forms.Form
$form.Text = 'Create local user....'
$form.Size = New-Object System.Drawing.Size(300,300)
$form.StartPosition = 'CenterScreen'

$okButton = New-Object System.Windows.Forms.Button
$okButton.Location = New-Object System.Drawing.Point(75,230)
$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(150,230)
$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)

$PasswordBox = New-Object System.Windows.Forms.MaskedTextBox
$PasswordBox.Location = New-Object System.Drawing.Point(10,140)
$PasswordBox.PasswordChar = '*'
$PasswordBox.Size = New-Object System.Drawing.Size(150,20)
$form.Controls.Add($PasswordBox)

$PasswordBox2 = New-Object System.Windows.Forms.MaskedTextBox
$PasswordBox2.Location = New-Object System.Drawing.Point(10,190)
$PasswordBox2.PasswordChar = '*'
$PasswordBox2.Size = New-Object System.Drawing.Size(150,20)
$form.Controls.Add($PasswordBox2)

$PasswordBox.Text = "password1"
$PasswordBox2.Text = "password2"

$form.Topmost = $true

$form.Add_Shown({$PasswordBox.Select()})

$result = $form.ShowDialog()

if (($Result -eq "OK") -AND (-NOT ($PasswordBox.Text -ceq $PasswordBox2.Text))) {

Here is the challenge :-)

Do not close dialog BUT keep dialog open and set focus to $PasswordBox

write-host "`nHere the dialog should not be closed!"
}

return $Result, $FullNameBox.Text, $UsernameBox.Text, $PasswordBox.Text, $PasswordBox2.Text
}

$Result, $FullName, $username, $password, $password2 = frGetNewUserCreds

write-host "`nReturned parameters: $Result $FullName $username $password $password2"

Answer 1

Hi，

I tried $this.DialogResult = [System.Windows.Forms.DialogResult]::OK and it didn't work either. However, you may try this workaround.

$okButton.Add_MouseDown({  
    if (($PasswordBox.Text -ceq $PasswordBox2.Text) -and ($PasswordBox.Text)) {  
        $okButton.DialogResult = [System.Windows.Forms.DialogResult]::OK  
    }  
})  
$okButton.add_click({  
    if (-not ($PasswordBox.Text -ceq $PasswordBox2.Text) -OR ($PasswordBox.Text -eq "")) {  
        if ($PasswordBox.Text -eq "") {  
            [System.Windows.Forms.MessageBox]::Show("Passwords cannot be empty")  
        }  
        else{  
            [System.Windows.Forms.MessageBox]::Show("Passwords didn’t match. Please try again.")  
        }  
    }  
})  
$result = $form.ShowDialog()  

Best Regards,
Ian Xue

============================================

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Answer 2

Hi again,

Thanks a lot!!

This does the trick, there is only a minor issue - I need to click the OK button twice when the two passwords match. Am I missing something - or is this the price to pay?

In any case I'm very grateful for the tip as I now can test this properly :-)

best regards Tor

I paste in my code below:

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

function frGetNewUserCreds {

$form = New-Object System.Windows.Forms.Form
$form.Text = 'Create local user....'
$form.Size = New-Object System.Drawing.Size(300,300)
$form.StartPosition = 'CenterScreen'

$okButton = New-Object System.Windows.Forms.Button
$okButton.Location = New-Object System.Drawing.Point(75,230)
$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(150,230)
$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)

$PasswordBox = New-Object System.Windows.Forms.MaskedTextBox
$PasswordBox.Location = New-Object System.Drawing.Point(10,140)

$PasswordBox.PasswordChar = '*'

$PasswordBox.Size = New-Object System.Drawing.Size(150,20)
$form.Controls.Add($PasswordBox)

$PasswordBox2 = New-Object System.Windows.Forms.MaskedTextBox
$PasswordBox2.Location = New-Object System.Drawing.Point(10,190)

$PasswordBox2.PasswordChar = '*'

$PasswordBox2.Size = New-Object System.Drawing.Size(150,20)
$form.Controls.Add($PasswordBox2)

$PasswordBox.Text = "password1"

$PasswordBox2.Text = "password2"

$form.Topmost = $true

$form.Add_Shown({$PasswordBox.Select()})

$okButton.add_click({
if ((-not ($PasswordBox.Text -ceq $PasswordBox2.Text)) -OR ($PasswordBox.Text -eq "")) {
if ($PasswordBox.Text -eq "") {
[System.Windows.Forms.MessageBox]::Show("Passwords cannot be empty")
} else {
[System.Windows.Forms.MessageBox]::Show("Passwords didn’t match. Please try again.")
}
}
else
{
$okButton.DialogResult = [System.Windows.Forms.DialogResult]::OK
}
})

$result = $form.ShowDialog()

return $Result, $FullNameBox.Text, $UsernameBox.Text, $PasswordBox.Text, $PasswordBox2.Text
}

$Result, $FullName, $username, $password, $password2 = frGetNewUserCreds

write-host "`nReturned parameters: $Result $FullName $username $password $password2"

Answer 3

Hi，

You can remove the line $okButton.DialogResult = [System.Windows.Forms.DialogResult]::OK and replace the if block with this

$okButton.add_click({  
    if (-not ($PasswordBox.Text -ceq $PasswordBox2.Text)) {  
        [System.Windows.Forms.MessageBox]::Show("Passwords didn’t match. Please try again.")   
    }  
    else{  
        $okButton.DialogResult = [System.Windows.Forms.DialogResult]::OK  
    }  
})  
$result = $form.ShowDialog()  

Best Regards,
Ian Xue

============================================

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Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.