ListBox issue

[ltwillis]

I have the PS script below:

PowerShell Code

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$holdval2 = Get-Mailbox $MailboxAddress.Text
	$WhenMailboxCreated.Text = $holdval2.WhenMailboxCreated
	$ADUserObjectCreated.Text = $holdval2.WhenCreated
	
	$EA = $holdval2.EmailAddresses
	Load-ListBox $Proxys $EA

$EA ends up holding a list of email addresses (6 of them) in an array. But the only thing that displays in the ListBox is "(Collection)", which is obviously not what is wanted here. I would like for the 6 email addresses to show up in the ListBox, one per line.

What am I missing here?

[SAPIEN Support Forums]

This is an automated post. A real person will respond soon.

Thank you for posting, ltwillis.

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[jvierra]

Use this:

$proxys.Items.AddRange($EA)

[ltwillis]

I didn't see your post/reply until today. I found the issue though. Turns out just had to make one simple change to line 5 as below:

[System.Array]$EA = $holdval2.EmailAddresses

For some reason, the data type for $EA was being set to ArrayList instead of just Array, and the Load-Listbox function is expecting an object of data type [array]. So once I added the "[System.Array]" right before $EA it all worked perfectly.

By the way, do you know exactly what the difference is between the two data types Array and ArrayList??? and why are there two?

Thanks again.

[jvierra]

ArrayList is correct however you had only one item in the list so it failed. Forcing it to be an array allowed the function to create an arraylist.

This is what is happening:

PowerShell Code

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PS C:\scripts> [collections.arraylist]'xxx'
Cannot convert the "xxx" value of type "System.String" to type "System.Collections.ArrayList".
At line:1 char:1
+ [collections.arraylist]'xxx'
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidArgument: (:) [], RuntimeException
    + FullyQualifiedErrorId : ConvertToFinalInvalidCastException

PS C:\scripts> [collections.arraylist][array]'xxx'
xxx
PS C:\scripts>

If the object passed is not an array then the cast fails. Forcing the string into an array fixes this.

A simple way is @('some string')