Disable Next Button until ListBox entry is SELECTED

[apajovejohn]

Hi,
I'm trying to ensure that the user can't click Next until an entry is clicked in a dynamically created ListBox. The ListBox is populated by a PowerShell script custom action (to list certificates for the user to pick for binding to the IIS websites we're creating). This all works great, but there's a "bug" that I can't work past where the user can elect to not click an entry in the displayed list and then the installer fails.

Is there a way that I can disable the Next button until the user clicks a certificate? I've tried setting AI_LISTBOX = "" disable and AI_LISTBOX_DATA <> "" Enable but I think the ListBox always has data once it's been populated, so this doesn't appear to work.

[Liviu]

Hello,

I just tested this with a sample project and everything worked as expected.

listbox control.png (34.65 KiB) Viewed 2984 times

The ListBox control is populated with the available drives on the computer, through a PowerShell script.

On the Control Conditions of the Next button you need to pass the property name of the ListBox control:

control conditions.png (15.83 KiB) Viewed 2984 times

listbox property.png (59.67 KiB) Viewed 2984 times

Please find attached the sample project.

Populate ListBox control with values from PSScript.aip

(26.69 KiB) Downloaded 162 times

I hope this is helpful!

Best regards,
Liviu

[apajovejohn]

Liviu, I'm really grateful for your support.

I got it working as you describe, it was not working previously as I had fundamentally misunderstood how to use the AI_LISTBOX_DATA property and was using that as my actual LISTBOX property, it worked, but having a MY_LISTBOX_PROP which I can then check the data of after pushing info into it from AI_LISTBOX_DATA custom action was the missing piece.

Thanks again

john

[Liviu]

You're always welcome, John!

It's great to hear that everything is now working as expected.

Best regards,
Liviu