How to change the Modal Width in javascript?

Question

I have a table in a modal , after clicking a button on this modal, the table is changed to another table.The first table is big so the modal width is large,while the second table is small, I want to change the width of modal in javascript after the second table appears, how can this be done?

$.ajax({
    type:"POST",
    url : 'UpdateResults.php',
    data : {'Data':jsonString}

}).done(function(response) {
   if (data == "Failed")
        {
            sweetAlert("","Error Occured!","error");
        }
    else
        {
            document.getElementById("UpDResults").style.display = 'block';
            $("#UpDResults").append(response).trigger("update");
            $("#Results").show();
            $("#SearchResults").hide();
            $("#UpdateResults").hide();
            $("#NoData").hide();
            document.getElementById('modal-3').style.width = '1080px';//Here what i tried
        }
});

Answer 1

You can use class 'modal-dialog' and change the width. You can change the width in success function of Ajax call.

 function ChangeWidth() { var d = document.getElementsByClassName('modal-dialog') for (var i = 0; i < d.length; i++) { d[i].style.width = "400px"; } } 

 <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script> <button type="button" class="btn btn-info btn-lg" data-toggle="modal" data-target="#myModal">Open First Modal</button> <div> <div id="myModal" class="modal fade" role="dialog"> <div class="modal-dialog"> <!-- Modal content--> <div class="modal-content"> <div class="modal-header"> <button type="button" class="close" data-dismiss="modal">&times;</button> <h4 class="modal-title">Modal Header</h4> </div> <div class="modal-body"> <p>First Modal</p> </div> <div class="modal-footer"> <button type="button" class="btn btn-default" data-dismiss="modal">Close</button> <button type="button" class="btn btn-default" onclick="ChangeWidth()">Change Wdith</button> </div> </div> </div> </div> </div>