md-autocomplete optionsSelection

[ambarkiy]

What is the expected behavior?

I want to call a function when an option is selected. After some search it seem that i have to use :

property optionSelections of MdAutocompleteTrigger

In the documentation : https://material.angular.io/components/component/autocomplete optionSelections Stream of autocomplete option selections.

I dont understand that , what is a stream, how to implement this ?

What is the current behavior?

Iam able to have MdAutocompleteTrigger In my component i add : @ViewChild(MdAutocompleteTrigger) trigger:MdAutocompleteTrigger; ngAfterContentInit() { setTimeout(() =>this.trigger.openPanel()); } but i cannot use optionSelections, can someone can give me an example

I try this ngAfterContentInit() { setTimeout(() => Observable.merge(...this.trigger.optionSelections) .subscribe((option)=>console.log(option))); } but not working

Is there anything else we should know?

[kara]

Please keep GitHub issues for bug reports / feature requests. Better avenues for troubleshooting / questions are stack overflow, gitter, mailing list, etc.

Here is a plunker example though: https://plnkr.co/edit/AaBESvqvT40htQPlAp0b?p=preview. In the next release, you shouldn't have to merge the selection events yourself, see #3212

[ambarkiy]

Thank you sorry

[ktersius]

@kara The sample you provided only fires the option selected "event" once. If you change the text and select another option the new option event is not fired. Any ideas?

Another option is to use the option onSelect #3576

[ambarkiy]

thank you 're write

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