List Picker Auto Selection

I got a listpicker and a boolen variabe (default false) in my app.
If variable is false, user picks item from listpicker elements. No problem in here.
What I want is if variable is true, I want my program to auto select a listpicker element and evaluate afterpicking block. Is it possible?

(Note: Do not care about afterpicking block's error.)

I tried something like in photos but although I set listpicker.selection = an element, it did not evaluate afterpicking block.
Thanks in advance.

Probably easier to emulate the afterpicking event, e.g. do whatever you want to do, in your if/else blocks, having made a selection from the listpicker elements.


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After you set the selection, you can call the "AfterPicking" event manually. You can use this extension.


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