动态更改Angular 5 ng-bootstrap模态对话框的模板-Java 学习之路

我正在开发一个模态对话框，我需要能够动态地动态更改templateURL . 显示的是默认模板 . 我只是想知道如何实现它，因为这将通过templateURL名称和位置传入调用 . 下面是我的组件代码：

import { ModalService } from './../../services/modal.service';
import {Component, Input} from '@angular/core';

import {NgbModal, NgbActiveModal} from '@ng-bootstrap/ng-bootstrap';

@Component({
  selector: 'app-ngbd-modal-content',
  templateUrl: '../../templates/modal.tp1.html'
})

export class ModalOptionsComponent {
  @Input() name;

  constructor(public activeModal: NgbActiveModal, modelService: ModalService) {}
}

export class  NgbdModalComponent {
  constructor(private ngbModal: NgbModal) {}
}

理想情况下，我想从下面的服务类和组件中打开它，但我不确定如何做到这一点 . 我已经做了相当多的研究，但我对如何实现这一点并没有太多了解 .

Modal.service.ts：

import { ModalOptionsComponent } from './../pages/modal-options/modal-options.component';
import { Injectable } from '@angular/core';
import {NgbModal, NgbActiveModal} from '@ng-bootstrap/ng-bootstrap';

@Injectable()
export class ModalService {

  constructor(private ngbModal: NgbModal, private modalComp: ModalOptionsComponent) { }

  modalService(modal: any) {
    const modalDefaults = {
      templateUrl: '../templates/modal.tp1.html'
    };
    const modalOptions = {
      hasClose: true,
      closeButtonText: 'CLose',
      actionButtonText: 'OK',
      headerText: 'Proceed?',
      bodyText: 'Perform this action?',
      okResult: {}
    };
  }

  showModal(customModalDefaults: any, cusomeModalOptions: any) {

  }


}

我需要做的一件事就是为此创建服务类，我对角度很新，并想知道如何实现这一点 .

2 回答

因为我无法找到更改templateUrl的能力，我必须为我需要的每种类型的对话框创建一个组件 . 这方面的缺点是它不再是动态的，但它适合我需要它 . 基本上，您可以使用该服务生成所需的组件类型 . 有一件事是不幸的是，使用动态组件加载并不是真正可行的解决方案，因为这样做很复杂 . 以下是我所做的一个例子 .

Component code for default modal dialog:

import {Component, Input} from '@angular/core';

import {NgbModal, NgbActiveModal} from '@ng-bootstrap/ng-bootstrap';

@Component({
  selector: 'app-ngbd-modal-content',
  template: `
<div class="modal-header">
<h3 class="font-32" style="padding-bottom: 0px">{{headerText}}</h3>
</div>
<div class="modal-body">
<p>{{bodyText}}</p>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-outline-dark" (click)="activeModal.close('Close click')">Close</button>
</div>
  `,
  styleUrls: ['./default-modal-dialog.component.scss']
})
export class DefaultModalDialogComponent {
  @Input() bodyText;
  @Input() headerText;

  constructor(public activeModal: NgbActiveModal) {}

}

Component code for FeaturedSearch:

import {Component, Input} from '@angular/core';

    import {NgbModal, NgbActiveModal} from '@ng-bootstrap/ng-bootstrap';

    @Component({
    selector: 'app-featured-search-dialog',
    template: `
    <div>
        <div class="modal-header">
            <h3 class="font-32" style="margin-bottom: -16px;">Edit Heading and Subheading</h3>
        </div>
        <div class="modal-body" style="padding:30px;">
            <div class="row">
                <div class="col-md-12">
                    <label class="font-14-bold">Heading</label>
                </div>
            </div>
            <div class="row">
                <div class="col-md-12">
                    <input style="box-shadow: rgb(102, 102, 102) 0px 0px 4px inset; border: 0px; margin-bottom: 50px;"  type="text" class="form-control input-sm" ng-model="modalOptions.okResult.heading" >
                </div>
            </div>
            <div class="row">
                <div class="col-md-12">
                    <label class="font-14-bold">Subheading</label>
                </div>
            </div>
            <div class="row">
                <div class="col-md-12">
                    <input style="box-shadow: rgb(102, 102, 102) 0px 0px 4px inset; border: 0px;" type="text" class="form-control input-sm" ng-model="modalOptions.okResult.subheading" >
                </div>
            </div>
        </div>
        <div class="modal-footer">
            <div style="margin-top: 8px; margin-bottom: 8px;">
                <button style="background-color: #999999; color: #ffffff;" type="button" ng-show="modalOptions.okResult.buttonText !== 'Close'"
                        class="btn font-14-bold"
                        data-ng-click="modalOptions.close()">Close
                </button>
                <button style="background-color: #004065; color: #ffffff; width: 70px;" type="button" class="btn ng-binding" ng-disabled="modalOptions.okResult.heading.length <= 0 || modalOptions.okResult.subheading.length <=0" data-ng-click="modalOptions.ok()">OK</button>
            </div>
        </div>
    </div>
    `,
    styleUrls: ['./featured-search-dialog.component.scss']
    })
    export class FeaturedSearchDialogComponent {

    @Input() heading;
    @Input() subheading;

    constructor(public activeModal: NgbActiveModal) {}

    }

Custom Modal Service :

import { Injectable, Input, ComponentFactoryResolver } from '@angular/core';
import {NgbModal, NgbActiveModal} from '@ng-bootstrap/ng-bootstrap';
@Injectable()
export class ModalService {
    constructor(private ngbModal: NgbModal,
                private componentFactoryResolver: ComponentFactoryResolver) {}

  showDefaultModalComponent(theComponent: any, headerText: any, bodyText: any) {
    const componenetFactory = this.componentFactoryResolver.resolveComponentFactory(theComponent);
    const modalRef = this.ngbModal.open(theComponent);
    modalRef.componentInstance.bodyText = bodyText;
    modalRef.componentInstance.headerText = headerText;
    return modalRef;
  }

  showFeaturedDialog(theComponent: any, heading: any, subheading: any) {
    const componenetFactory = this.componentFactoryResolver.resolveComponentFactory(theComponent);
    const modalRef = this.ngbModal.open(theComponent);
    return modalRef;
  }


}

回复于 2024-04-27T14:30:34+08:00

0
首先：NgbModal，NgbActiveModal来自包'@ ng-bootstrap / ng-bootstrap' .

我认为没有必要创建单独的服务，因为“动态模板”功能可以通过包本身提供的功能来实现 . 我们来看看如何：

请参考下面的图片（我猜's the scenario). In your main component where you'已经把你的'default-modal'，在我的情况下它是-detail（文件夹），从该组件（-detail.component）触发模态（默认模态） .

假设您正在通过单击按钮编辑* -detail.component中的事件 . 此单击会触发“默认模态”弹出窗口 . 我们在代码中看到这一点 .

*-.detail.component.html <button class="btn" (click)="editEvents(eventvalues)"> Edit </button>

*-detail.component.ts
```
editEvents(events) {
const activeModal = this.modalService.open(DefaultModal, { size: 'lg' });
activeModal.componentInstance.modalHeader = 'Edit Event';
activeModal.componentInstance.eventdata = events;  }
```
现在，模态组件： modal.component.html
```
<p>{{modalHeader}}</p>
<p> {{eventdata }} </p>
```
请注意，您需要对文件进行必要的导入 . 在组件模块导入中，NgbModalModule也会添加到imports数组中 . 在component.ts文件中：NgbModal并从'./default-modal/default-modal.component'导入;
回复于 2024-04-27T14:30:34+08:00

动态更改Angular 5 ng-bootstrap模态对话框的模板

2 回答

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