Confirm deletion using Bootstrap 3 modal box

Question

I need to confirm deletion using Bootstrap 3 modal box (YES/NO). How can I create this?

HTML code:

    &         


        

Answer 1

I've the same problem just today. This is my solution (which I think is better and simpler):

<!-- Modal dialog -->
<div class="modal fade" id="frmPrenotazione" tabindex="-1">
    <!-- CUTTED -->
    <div id="step1" class="modal-footer">
      <button type="button" class="glyphicon glyphicon-erase btn btn-default" id="btnDelete"> Delete</button>
    </div>
</div>

<!-- Modal confirm -->
<div class="modal" id="confirmModal" style="display: none; z-index: 1050;">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-body" id="confirmMessage">
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-default" id="confirmOk">Ok</button>
                <button type="button" class="btn btn-default" id="confirmCancel">Cancel</button>
            </div>
        </div>
    </div>
</div>

And in my .js:

$('#btnDelete').on('click', function(e){
    confirmDialog(YOUR_MESSAGE_STRING_CONST, function(){
        //My code to delete
    });
});

function confirmDialog(message, onConfirm){
    var fClose = function(){
        modal.modal("hide");
    };
    var modal = $("#confirmModal");
    modal.modal("show");
    $("#confirmMessage").empty().append(message);
    $("#confirmOk").unbind().one('click', onConfirm).one('click', fClose);
    $("#confirmCancel").unbind().one("click", fClose);
}

Using unbind before the one prevents that the removal function is invoked at the next opening of the dialog.

I hope this could be helpful.

Follow a complete example:

var YOUR_MESSAGE_STRING_CONST = "Your confirm message?";
      $('#btnDelete').on('click', function(e){
    		confirmDialog(YOUR_MESSAGE_STRING_CONST, function(){
    			//My code to delete
          console.log("deleted!");
    		});
    	});

        function confirmDialog(message, onConfirm){
    	    var fClose = function(){
    			  modal.modal("hide");
    	    };
    	    var modal = $("#confirmModal");
    	    modal.modal("show");
    	    $("#confirmMessage").empty().append(message);
    	    $("#confirmOk").unbind().one('click', onConfirm).one('click', fClose);
    	    $("#confirmCancel").unbind().one("click", fClose);
        }

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>

<!-- Modal dialog -->
<div id="frmTest" tabindex="-1">
    <!-- CUTTED -->
      <div id="step1" class="modal-footer">
    <button type="button" class="glyphicon glyphicon-erase btn btn-default" id="btnDelete"> Delete</button>
  </div>
</div>

  <!-- Modal confirm -->
<div class="modal" id="confirmModal" style="display: none; z-index: 1050;">
  <div class="modal-dialog">
    <div class="modal-content">
      <div class="modal-body" id="confirmMessage">
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-default" id="confirmOk">Ok</button>
            <button type="button" class="btn btn-default" id="confirmCancel">Cancel</button>
          </div>
    </div>
  </div>
</div>

Answer 2

You can use Bootbox dialog boxes

$(document).ready(function() {

  $('#btnDelete').click(function() {
    bootbox.confirm("Are you sure want to delete?", function(result) {
      alert("Confirm result: " + result);
    });
  });
});

Plunker Demo

Answer 3

Create modal dialog in HTML with id="confirmation" and use function showConfirmation.

Also remember you should to unbind (modal.unbind()) cancel and success buttons after hide modal dialog. If you do not make this you will get double binding. For example: if you open dialog once and press 'Cancel' and then open dialog in second time and press 'Ok' you will get 2 executions of success callback.

showConfirmation = function(title, message, success, cancel) {
    title = title ? title : 'Are you sure?';
    var modal = $("#confirmation");
    modal.find(".modal-title").html(title).end()
        .find(".modal-body").html(message).end()
        .modal({ backdrop: 'static', keyboard: false })
        .on('hidden.bs.modal', function () {
            modal.unbind();
        });
    if (success) {
        modal.one('click', '.modal-footer .btn-primary', success);
    }
    if (cancel) {
        modal.one('click', '.modal-header .close, .modal-footer .btn-default', cancel);
    }
};

// bind confirmation dialog on delete buttons
$(document).on("click", ".delete-event, .delete-all-event", function(event){
    event.preventDefault();
    var self = $(this);
    var url = $(this).data('url');
    var success = function(){
        alert('window.location.href=url');
    }
    var cancel = function(){
        alert('Cancel');
    };
    if (self.data('confirmation')) {
        var title = self.data('confirmation-title') ? self.data('confirmation-title') : undefined;
        var message = self.data('confirmation');
        showConfirmation(title, message, success, cancel);
    } else {
        success();
    }
});

https://jsfiddle.net/yiiBoy/hne9sp6g/

Answer 4

simple way to use modals is with eModal!

Ex from github:

1. Link to eModal.js <script src="//rawgit.com/saribe/eModal/master/dist/eModal.min.js"></script>

    var options = {
            message: "The famouse question?",
            title: 'Header title',
            size: 'sm',
            callback: function(result) { result ? doActionTrue(result) :    doActionFalse(); },
            subtitle: 'smaller text header',
            label: "True"   // use the possitive lable as key
            //...
        };
                     
    eModal.confirm(options);

 <link href="//cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.1/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.1/js/bootstrap.min.js"></script>
<script src="//rawgit.com/saribe/eModal/master/dist/eModal.min.js"></script>

Tip: You can use change the default label name! { label: 'Yes' | 'True'| 'OK' }

Answer 5

<!-- Button trigger modal -->
<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModal">
  Launch demo modal
</button>

<!-- Modal -->
<div class="modal fade" id="exampleModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <h5 class="modal-title" id="exampleModalLabel">Modal title</h5>
        <button type="button" class="close" data-dismiss="modal" aria-label="Close">
          <span aria-hidden="true">&times;</span>
        </button>
      </div>
      <div class="modal-body">
        ...
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
        <button type="button" class="btn btn-primary">Save changes</button>
      </div>
    </div>
  </div>
</div>

https://getbootstrap.com/docs/4.0/components/modal/

Answer 6

Following solution is better than bootbox.js, because

• It can do everything bootbox.js can do;
• The use syntax is simpler
• It allows you to elegantly control the color of your message using "error", "warning" or "info"
• Bootbox is 986 lines long, mine only 110 lines long

digimango.messagebox.js:

const dialogTemplate = '\
    <div class ="modal" id="digimango_messageBox" role="dialog">\
        <div class ="modal-dialog">\
            <div class ="modal-content">\
                <div class ="modal-body">\
                    <p class ="text-success" id="digimango_messageBoxMessage">Some text in the modal.</p>\
                    <p><textarea id="digimango_messageBoxTextArea" cols="70" rows="5"></textarea></p>\
                </div>\
                <div class ="modal-footer">\
                    <button type="button" class ="btn btn-primary" id="digimango_messageBoxOkButton">OK</button>\
                    <button type="button" class ="btn btn-default" data-dismiss="modal" id="digimango_messageBoxCancelButton">Cancel</button>\
                </div>\
            </div>\
        </div>\
    </div>';


// See the comment inside function digimango_onOkClick(event) {
var digimango_numOfDialogsOpened = 0;


function messageBox(msg, significance, options, actionConfirmedCallback) {
    if ($('#digimango_MessageBoxContainer').length == 0) {
        var iDiv = document.createElement('div');
        iDiv.id = 'digimango_MessageBoxContainer';
        document.getElementsByTagName('body')[0].appendChild(iDiv);
        $("#digimango_MessageBoxContainer").html(dialogTemplate);
    }

    var okButtonName, cancelButtonName, showTextBox, textBoxDefaultText;

    if (options == null) {
        okButtonName = 'OK';
        cancelButtonName = null;
        showTextBox = null;
        textBoxDefaultText = null;
    } else {
        okButtonName = options.okButtonName;
        cancelButtonName = options.cancelButtonName;
        showTextBox = options.showTextBox;
        textBoxDefaultText = options.textBoxDefaultText;
    }

    if (showTextBox == true) {
        if (textBoxDefaultText == null)
            $('#digimango_messageBoxTextArea').val('');
        else
            $('#digimango_messageBoxTextArea').val(textBoxDefaultText);

        $('#digimango_messageBoxTextArea').show();
    }
    else
        $('#digimango_messageBoxTextArea').hide();

    if (okButtonName != null)
        $('#digimango_messageBoxOkButton').html(okButtonName);
    else
        $('#digimango_messageBoxOkButton').html('OK');

    if (cancelButtonName == null)
        $('#digimango_messageBoxCancelButton').hide();
    else {
        $('#digimango_messageBoxCancelButton').show();
        $('#digimango_messageBoxCancelButton').html(cancelButtonName);
    }

    $('#digimango_messageBoxOkButton').unbind('click');
    $('#digimango_messageBoxOkButton').on('click', { callback: actionConfirmedCallback }, digimango_onOkClick);

    $('#digimango_messageBoxCancelButton').unbind('click');
    $('#digimango_messageBoxCancelButton').on('click', digimango_onCancelClick);

    var content = $("#digimango_messageBoxMessage");

    if (significance == 'error')
        content.attr('class', 'text-danger');
    else if (significance == 'warning')
        content.attr('class', 'text-warning');
    else
        content.attr('class', 'text-success');

    content.html(msg);

    if (digimango_numOfDialogsOpened == 0)
        $("#digimango_messageBox").modal();

    digimango_numOfDialogsOpened++;
}

function digimango_onOkClick(event) {
    // JavaScript's nature is unblocking. So the function call in the following line will not block,
    // thus the last line of this function, which is to hide the dialog, is executed before user
    // clicks the "OK" button on the second dialog shown in the callback. Therefore we need to count
    // how many dialogs is currently showing. If we know there is still a dialog being shown, we do
    // not execute the last line in this function.
    if (typeof (event.data.callback) != 'undefined')
        event.data.callback($('#digimango_messageBoxTextArea').val());

    digimango_numOfDialogsOpened--;

    if (digimango_numOfDialogsOpened == 0)
        $('#digimango_messageBox').modal('hide');
}

function digimango_onCancelClick() {
    digimango_numOfDialogsOpened--;

    if (digimango_numOfDialogsOpened == 0)
        $('#digimango_messageBox').modal('hide');
}

To use digimango.messagebox.js:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>A useful generic message box</title>
    <meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />

    <link rel="stylesheet" type="text/css" href="~/Content/bootstrap.min.css" media="screen" />
    <script src="~/Scripts/jquery-1.10.2.min.js" type="text/javascript"></script>
    <script src="~/Scripts/bootstrap.js" type="text/javascript"></script>
    <script src="~/Scripts/bootbox.js" type="text/javascript"></script>

    <script src="~/Scripts/digimango.messagebox.js" type="text/javascript"></script>


    <script type="text/javascript">
        function testAlert() {
            messageBox('Something went wrong!', 'error');
        }

        function testAlertWithCallback() {
            messageBox('Something went wrong!', 'error', null, function () {
                messageBox('OK clicked.');
            });
        }

        function testConfirm() {
            messageBox('Do you want to proceed?', 'warning', { okButtonName: 'Yes', cancelButtonName: 'No' }, function () {
                messageBox('Are you sure you want to proceed?', 'warning', { okButtonName: 'Yes', cancelButtonName: 'No' });
            });
        }

        function testPrompt() {
            messageBox('How do you feel now?', 'normal', { showTextBox: true }, function (userInput) {
                messageBox('User entered "' + userInput + '".');
            });
        }

        function testPromptWithDefault() {
            messageBox('How do you feel now?', 'normal', { showTextBox: true, textBoxDefaultText: 'I am good!' }, function (userInput) {
                messageBox('User entered "' + userInput + '".');
            });
        }

    </script>
</head>

<body>
    <a href="#" onclick="testAlert();">Test alert</a> <br/>
    <a href="#" onclick="testAlertWithCallback();">Test alert with callback</a> <br />
    <a href="#" onclick="testConfirm();">Test confirm</a> <br/>
    <a href="#" onclick="testPrompt();">Test prompt</a><br />
    <a href="#" onclick="testPromptWithDefault();">Test prompt with default text</a> <br />
</body>

</html>