如果你不知道模式是否已经打开或者还没有打开，你需要配置模式选项，还有一个选项:

引导3.4

var $modal = $('#modal');
var keyboard = false; // Prevent to close by ESC
var backdrop = 'static'; // Prevent to close on click outside the modal

if(typeof $modal.data('bs.modal') === 'undefined') { // Modal did not open yet
    $modal.modal({
        keyboard: keyboard,
        backdrop: backdrop
    });
} else { // Modal has already been opened
    $modal.data('bs.modal').options.keyboard = keyboard;
    $modal.data('bs.modal').options.backdrop = backdrop;

    if(keyboard === false) { 
        $modal.off('keydown.dismiss.bs.modal'); // Disable ESC
    } else { // 
        $modal.data('bs.modal').escape(); // Resets ESC
    }
}

引导 4.3+

var $modal = $('#modal');
var keyboard = false; // Prevent to close by ESC
var backdrop = 'static'; // Prevent to close on click outside the modal

if(typeof $modal.data('bs.modal') === 'undefined') { // Modal did not open yet
    $modal.modal({
        keyboard: keyboard,
        backdrop: backdrop
    });
} else { // Modal has already been opened
    $modal.data('bs.modal')._config.keyboard = keyboard;
    $modal.data('bs.modal')._config.backdrop = backdrop;

    if(keyboard === false) { 
        $modal.off('keydown.dismiss.bs.modal'); // Disable ESC
    } else { // 
        $modal.data('bs.modal').escape(); // Resets ESC
    }
}

将选项更改为_config

You can Disallow closing of #signUp (This should be the id of the modal) modal when clicking outside of modal.
As well as on ESC button.
jQuery('#signUp').on('shown.bs.modal', function() {
    jQuery(this).data('bs.modal').options.backdrop = 'static';// For outside click of modal.
    jQuery(this).data('bs.modal').options.keyboard = false;// For ESC button.
})

这是最简单的

你可以定义你的模式行为，定义数据键盘和数据背景。

<div id="modal" class="modal hide fade in" data-keyboard="false" data-backdrop="static">

如果你正在使用@ng-bootstrap，请使用以下命令:

组件

import { Component, OnInit } from '@angular/core';
import { NgbModal } from '@ng-bootstrap/ng-bootstrap';

@Component({
  selector: 'example',
  templateUrl: './example.component.html',
  styleUrls: ['./example.component.scss'],
})
export class ExampleComponent implements OnInit {

  constructor(
    private ngbModal: NgbModal
  ) {}

  ngOnInit(): void {
  }

  openModal(exampleModal: any, $event: any) {
    this.ngbModal.open(exampleModal, {
      size: 'lg', // set modal size
      backdrop: 'static', // disable modal from closing on click outside
      keyboard: false, // disable modal closing by keyboard esc
    });
  }
}

模板

<div (click)="openModal(exampleModal, $event)"> </div>
    <ng-template #exampleModal let-modal>
        <div class="modal-header">
            <h5 class="modal-title">Test modal</h5>
        </div>
        <div class="modal-body p-3">
            <form action="">
                <div class="form-row">
                    <div class="form-group col-md-6">
                        <label for="">Test field 1</label>
                        <input type="text" class="form-control">
                    </div>
                    <div class="form-group col-md-6">
                        <label for="">Test field 2</label>
                        <input type="text" class="form-control">
                    </div>

                    <div class="text-right pt-4">
                        <button type="button" class="btn btn-light" (click)="modal.dismiss('Close')">Close</button>
                        <button class="btn btn-primary ml-1">Save</button>
                    </div>
            </form>
        </div>
    </ng-template>

这段代码在angular 9上测试，使用:

“@ng-bootstrap / ng-bootstrap”:1 ^ 6。0, “引导”:“^ 4。4 . 1”,

把这段代码放在modal html的第一个块中

引导4.倍

-keyboard = "和"日期-backdrop =“静态”

Boostrap 5.倍

data-bs-keyboard = " false " data-bs-backdrop =“静态”

例子:

<div id="modal-user" class="modal fade" tabindex="-1" role="dialog" aria-hidden="true" data-bs-keyboard="false" data-bs-backdrop="static">

文档引导5:https://getbootstrap.com/docs/5.1/components/modal/#options

包括一个情态背景元素。或者，为背景指定静态，它不会在单击时关闭模式。

4. For Bootstrap。X，你可以这样做:

$('#modal').data('bs.modal')._config.backdrop = 'static';
$('#modal').data('bs.modal')._config.keyboard = false;