如何让 Timepicker 出现在 Angular 的下拉菜单中？答案

【问题标题】：How can I make a Timepicker appear in Dropdown in Angular?如何让 Timepicker 出现在 Angular 的下拉菜单中？
【发布时间】：2020-04-14 22:04:30
【问题描述】：

在Bootstrap 4 docs 上，您可以拥有一个仅包含时间选择器的可切换下拉菜单。但是，我想使用时间选择器的 Angular 模块而不是使用香草引导程序来添加它。您可以使用NgbDatepicker 完成类似的操作，但是没有列出的示例可以使用时间选择器完成此操作。

我确实尝试使用相同的代码并将 NgbDatePicker 的提及更改为 NgbTimePicker 无济于事。下面的示例生成 Template parse errors:，其中 ngbTimepicker 未被识别为指令。

<div class="input-group">
    <input class="form-control" name="startTime" [(ngModel)]="newEmployeeTime.StartTime" ngbTimepicker 
         #start="ngbTimepicker" [readonly]="true">

    <div class="input-group-append">
        <button class="btn btn-outline-secondary calendar" (click)="startTime.toggle()" type="button"><i 
            class="fa fa-clock"></i></button>
    </div>
</div>

当然必须有一种不复杂的方法来完成此任务，但我现在似乎无法想到它。

【问题讨论】：

标签： javascript angular bootstrap-4 timepicker ng-bootstrap

【解决方案1】：

package.json

"dependencies": {
  "@ng-bootstrap/ng-bootstrap": "5.1.4"
}

app.module.ts

import { NgbdDatepickerPopup } from './datepicker-popup'
declarations: [NgbdDatepickerPopup]
exports: [NgbdDatepickerPopup]
bootstrap: [NgbdDatepickerPopup]

组件.ts

export class Component {
  model;
}

component.html

<form class="form-inline">
  <div class="form-group">
    <div class="input-group">
      <input class="form-control" placeholder="yyyy-mm-dd"
             name="dp" [(ngModel)]="model" ngbDatepicker #d="ngbDatepicker">
      <div class="input-group-append">
        <button class="btn btn-outline-secondary calendar" (click)="d.toggle()" type="button"></button>
      </div>
    </div>
  </div>
</form>

组件.css

/* Datepicker popup icon */

button.calendar, button.calendar:active {
  width: 2.75rem;
  background-image: url('data:image/png;base64,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') !important;
  background-repeat: no-repeat;
  background-size: 23px;
  background-position: center;
}

/* Sortable table demo */

th[sortable] {
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
}

th[sortable].desc:before, th[sortable].asc:before {
  content: '';
  display: block;
  background: url('data:image/png;base64,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') no-repeat;
  background-size: 22px;
  width: 22px;
  height: 22px;
  float: left;
  margin-left: -22px;
}

th[sortable].desc:before {
  transform: rotate(180deg);
  -ms-transform: rotate(180deg);
}

/* Filtering table demo */
ngbd-table-filtering span.ngb-highlight {
  background-color: yellow;
}

/* Complete table demo */
ngbd-table-complete span.ngb-highlight {
  background-color: yellow;
}

ngb-carousel .picsum-img-wrapper {
  position: relative;
  height: 0;
  padding-top: 55%; /* Keep ratio for 900x500 images */
}

ngb-carousel .picsum-img-wrapper>img {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
}

【讨论】：