Control Arrays

how can i create an array of RADIOBUTTONS and refer to them byindex instead
of individuall as per this code:

$opt0 = New-Object windows.forms.radiobutton;
$opt1 = New-Object windows.forms.radiobutton;
$opt2 = New-Object windows.forms.radiobutton;
$opt3 = New-Object windows.forms.radiobutton;
$opt4 = New-Object windows.forms.radiobutton;

[object[]]$a = New-Object windows.forms.radiobutton;

$a += New-Object windows.forms.radiobutton;
$a += New-Object windows.forms.radiobutton;

$a.count

$a[0]

--
greetings
dreeschkind

"fixitchris" wrote:

> how can i create an array of RADIOBUTTONS and refer to them byindex instead
> of individuall as per this code:
>
> $opt0 = New-Object windows.forms.radiobutton;
> $opt1 = New-Object windows.forms.radiobutton;
> $opt2 = New-Object windows.forms.radiobutton;
> $opt3 = New-Object windows.forms.radiobutton;
> $opt4 = New-Object windows.forms.radiobutton;

[void][System.Reflection.Assembly]::LoadWithPartialName("System.windows.forms")

[System.Windows.Forms.RadioButton[]]$buttons = new-object
System.Windows.Forms

for ($i = 0; $i -lt 4; $i++){$buttons += new-object
System.Windows.Forms.Radio

You can see that you have added the correct number of objects using:
$buttons.Length

To see that each element is of the desired type:
for ($i = 0; $i -lt 5; $i++){$buttons[$i].GetType()}

Reference an element using square brackets:
$buttons[2]

Andrew Watt MVP

On Wed, 15 Nov 2006 11:29:01 -0800, fixitchris
<fixitchris@discussions.microsoft.com> wrote:

>how can i create an array of RADIOBUTTONS and refer to them byindex instead
>of individuall as per this code:
>
>$opt0 = New-Object windows.forms.radiobutton;
>$opt1 = New-Object windows.forms.radiobutton;
>$opt2 = New-Object windows.forms.radiobutton;
>$opt3 = New-Object windows.forms.radiobutton;
>$opt4 = New-Object windows.forms.radiobutton;

On Wed, 15 Nov 2006 20:11:38 +0000, "Andrew Watt [MVP]"
<SVGDeveloper@aol.com> wrote:

Oops, something went wrong in the pasting. The following ...

>for ($i = 0; $i -lt 4; $i++){$buttons += new-object
>System.Windows.Forms.Radio

should be
for ($i = 0; $i -lt 4; $i++){$buttons += new-object
System.Windows.Forms.RadioButton}

Andrew Watt MVP

Note that you should initialize the $buttons variable in this case which
might look like:

for ($($buttons = @();$i = 0); $i -lt 4; $i++){$buttons += new-object
System.Windows.Forms.RadioButton}

or, outside the for statement,

$buttons = @(); for ($i=0; $i -lt 4; $i++) { $buttons += new-object
System.Windows.Forms.RadioButton}

But here's a slightly different approach:

$buttons = 1..4 |%{new-object System.Windows.Forms.Button}

This takes advantage of the fact that we accumulate output from a pipeline
into an array. This is actually a good deal more efficient than using += to
build up the array. You could also do it using the for loop in a
sub-expression:

$buttons = @(for ($i=0; $i -lt 4; $i++) { new-object
System.Windows.Forms.Button })

-bruce

--
Bruce Payette [MSFT]
Windows PowerShell Technical Lead
Microsoft Corporation
This posting is provided "AS IS" with no warranties, and confers no rights.



"Andrew Watt [MVP]" <SVGDeveloper@aol.com> wrote in message
news:egtml29hbmkgoretvt9dfksr1mmrm49nh3@4ax.com...
> On Wed, 15 Nov 2006 20:11:38 +0000, "Andrew Watt [MVP]"
> <SVGDeveloper@aol.com> wrote:
>
> Oops, something went wrong in the pasting. The following ...
>
>>for ($i = 0; $i -lt 4; $i++){$buttons += new-object
>>System.Windows.Forms.Radio
>
> should be
> for ($i = 0; $i -lt 4; $i++){$buttons += new-object
> System.Windows.Forms.RadioButton}
>
> Andrew Watt MVP