Launch Bootstrap Modal on Page Load

Launch Bootstrap Modal on Page Load

Just wrap the modal you want to call on page load inside a jQuery load event on the head section of your document and it should popup, like so:

JS

<script type="text/javascript">
    $(window).on('load', function() {
        $('#myModal').modal('show');
    });
</script>

HTML

<div class="modal hide fade" id="myModal">
    <div class="modal-header">
        <a class="close" data-dismiss="modal">×</a>
        <h3>Modal header</h3>
    </div>
    <div class="modal-body">
        <p>One fine body…</p>
    </div>
    <div class="modal-footer">
        <a href="#" class="btn">Close</a>
        <a href="#" class="btn btn-primary">Save changes</a>
    </div>
</div>

You can still call the modal within your page with by calling it with a link like so:

<a class="btn" data-toggle="modal" href="#myModal">Launch Modal</a>

Bootstrap 5 - Modal Open on Page Load

First of all welcome to Stackoverflow community.

As you have asked, you have correct the modal dialog code snippet first. You have missed the first line of modal in there. you have to add the id to that line, not to the modal-dialog div

<div class="modal fade" id="onload" tabindex="-1" aria-labelledby="exampleModalLabel" aria-hidden="true"> <!-- Add this line to your code -->
    <div class="modal-dialog modal-dialog-centered">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title" id="exampleModalLabel">Do You Want Cookie? We Want Yours! lt;/h5>
            </div>
            <div class="modal-body">
                This site uses cookies to personalies the content for you.
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Close</button>
            </div>
        </div>
    </div>
</div> <!-- And the relavant closing div tag -->

Then after that you need to import jquery to your code. Otherwise code jquery code segments will not work in your html file. Finally rather than using jquery onload event listner use the native VanillaJS window.onload event to trigger your modal.

<!-- import jquery -->
<script src="https://code.jquery.com/jquery-3.6.0.min.js" integrity="sha256-/xUj+3OJU5yExlq6GSYGSHk7tPXikynS7ogEvDej/m4=" crossorigin="anonymous"></script>
<!-- Bootstrap Bundle with Popper -->
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-MrcW6ZMFYlzcLA8Nl+NtUVF0sA7MsXsP1UyJoMp4YLEuNSfAP+JcXn/tWtIaxVXM" crossorigin="anonymous"></script>

<!--Modal JS Script -->
<script type="text/javascript">
    window.onload = () => {
        $('#onload').modal('show');
    }
</script>

Then your bootstrap modal will work with expected behavior.

bootstrap modal wont open on page load

Your case may be already answered thousand times, but consider few these causes:

1. Order of your libraries, are they in correct position?
2. Perhaps you forget to include bootstrap.js
3. Consider to include popper.js
   Please let me know, if it helps

Launch Bootstrap Modal Dialog on Load in Angular 8

firstly after adding bootstrap and jquery and put thier scripts and styles files in the angular.json you should install ngbootrap by using the following command

npm install --save @ng-bootstrap/ng-bootstrap

and after that added to the appmodule file like the following

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { NgbModule } from '@ng-bootstrap/ng-bootstrap';

import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';

@NgModule({
  declarations: [AppComponent],
  imports: [BrowserModule, AppRoutingModule, NgbModule],
  providers: [],
  bootstrap: [AppComponent],
})
export class AppModule {}

and in your component.ts file added the following

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

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css'],
})
export class AppComponent implements OnInit, AfterViewInit {
  title = 'appBootstrap';
  @ViewChild('mymodal') mymodal: ElementRef | undefined;
  closeResult = '';

  constructor(private modalService: NgbModal) {}
  ngAfterViewInit(): void {
    this.open(this.mymodal);
  }
  ngOnInit(): void {}

  open(content: any) {
    this.modalService
      .open(content, { ariaLabelledBy: 'modal-basic-title' })
      .result.then(
        (result) => {
          this.closeResult = `Closed with: ${result}`;
        },
        (reason) => {
          this.closeResult = `Dismissed ${this.getDismissReason(reason)}`;
        }
      );
  }

  private getDismissReason(reason: any): string {
    if (reason === ModalDismissReasons.ESC) {
      return 'by pressing ESC';
    } else if (reason === ModalDismissReasons.BACKDROP_CLICK) {
      return 'by clicking on a backdrop';
    } else {
      return `with: ${reason}`;
    }
  }
}

you can see that we simply added the call to the modal to the afterInit function and it will work.
and lastly this is the html code for the component

<h1>Modal show on page load Example</h1>

<button class="btn btn-lg btn-outline-primary" (click)="open(mymodal)">Open My Modal</button>

<ng-template #mymodal let-modal>
    <div class="modal-header">
        <h4 class="modal-title" id="modal-basic-title">Bootstrap Modal</h4>
        <button type="button" class="close" aria-label="Close" (click)="modal.dismiss('Cross click')">
      <span aria-hidden="true">×</span>
    </button>
    </div>
    <div class="modal-body">
        This is example from showing modal when the page loaded
    </div>
    <div class="modal-footer">
        <button type="button" class="btn btn-outline-dark" (click)="modal.close('Save click')">Ok</button>
    </div>
</ng-template>

Last Note : i answered this question by a good help from this blog : https://www.itsolutionstuff.com/post/how-to-use-bootstrap-modal-in-angularexample.html

Display This Bootstrap Modal on Page Load

Trigger the modal programatically

$(document).ready(function() {
  $('#tallModal').modal('show');
});

Here is the pen

auto open bootstrap modal on page load for 3 times every user

After several months, I Found the answer myself. so please check my new question:

how to set cookie after 10 seconds by javascript

.

In my answer (that question), you can see the solution of this qustion.

Thanks

Bootstrap modal opens automatically on page load, but how to disable if form is submitted

Check this it will help you:

Dismiss Bootstrap Modal (Forever!) with jQuery Cookie, On Click

Launch bootstrap modal when page loads with parameters

Your call

 $('#userModal').modal('show', function() {

is trying to do something similar to $.ajax functions (like $.load), ie:

 $(selector).modal(action, callback)

However, there isn't a bootstrap .modal method that allows for a callback.

Instead, you need to listen for the modal event shown.bs.modal before you show the modal, updated: code:

$(document).ready(function(){
  $('#userModal').on("shown.bs.modal", function() {
      var name = 'brian';
      var user_id = 366; 
      $('#userModal .userName').val(name);
      $('#userModal .userId').val(user_id); 
  });
  $('#userModal').modal('show');
});

---

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