如何预先选择 Primeeng 下拉值? [英] How to pre select Primeng Dropdown values?

问题描述

我的 angular 应用中有包含一组值的 Primeng 下拉菜单.

I have primeng dropdown with set of values in my angular app.

在视图 Screen 中，下拉不显示所选值(保存在 db 中的值)，而是显示选择".

In the view Screen , drop down is not displaying the selected value (value saved in db) instead it displays 'Select'.

HTML:

<p-dropdown    [options]="reasons" [(ngModel)]="selectedReason"   (onChange)="getCompleteReason($event)" styleClass="ui-column-filter" filter="true"> </p-dropdown>

组件.ts

this.reasons = [];
    this.reasons.push({label: 'Select', value: null});
    this.reasons.push({label: 'Reason 1', value: 'Reason 1'});
    this.reasons.push({label: 'Reason 2', value: 'Reason 2'});
    this.reasons.push({label: 'Reason 3', value: 'Reason 3'});
    this.reasons.push({label: 'Other', value: 'Other'});


this.selectedReason = 'Reason 2' (eg value stored in the db)

推荐答案

在我将 name 属性添加到下拉列表后它起作用了

It worked after i added name attribute to the dropdown

<p-dropdown   [options]="reasons" [(ngModel)]="selectedReason"  name="selectedReason"   (onChange)="getCompleteReason($event)" styleClass="ui-column-filter" filter="true">

这篇关于如何预先选择 Primeeng 下拉值?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！