材料 2 自动完成:选择选项 [英] material 2 Autocomplete: select option

问题描述

我想在选择一个选项时调用一个函数.经过一番搜索后，我似乎必须使用:

MdAutocompleteTrigger

的

属性optionSelections

在文档中:https://material.angular.io/components/component/autocomplete选项选择自动完成选项选择流.

我不明白，什么是流，如何实现?

解决方案

在 md-option 上可以设置onSelect"

<md-option (onSelect)="callSomeFunction()" *ngFor="let state of states" [value]="state.name">{{ state.name }}</md-option></md-自动完成>

自 Beta 3 以来，功能发生了变化:

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 ?

解决方案

On md-option you can set "onSelect"

<md-autocomplete #auto="mdAutocomplete">
    <md-option (onSelect)="callSomeFunction()" *ngFor="let state of states" [value]="state.name">{{ state.name }}</md-option>
</md-autocomplete>

Since beta 3, functionality has changed:

<md-autocomplete #auto="mdAutocomplete">
    <md-option (onSelectionChange)="callSomeFunction()" *ngFor="let state of states" [value]="state.name">{{ state.name }}</md-option>
</md-autocomplete>

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