How-To jQuery alert boxes for beginner - javascript

Apologies if this is overly basic, but I couldn't find much info with my searches.
I have a simple link: delete.
Clicking the link deletes an item from my database.
How do I make the link show a popup (JavaScript alert box?) with a message:
Are you sure? [Yes] [No]
I'd like to use jQuery instead of inline JavaScript, if possible.

Start by giving your element an id.
delete
Then:
<script>
$(document).ready(function(){
$('#delbtn').click(function(){
return confirm("Are You sure");
});
});
</script>

give id/class to your anchor:
Delete
then on document load assign an event to clicking the link.
$(function(){
//on document ready
$('.btn_del').click(function(e){
return confirm('Are you sure?')
})
})

Use jQuery UI's modal dialogs they're infinitely better than alert.
$("a#delete").click(function() {
$("#dialog").dialog({
bgiframe: true,
resizable: false,
height:140,
modal: true,
overlay: {
backgroundColor: '#000',
opacity: 0.5
},
buttons: {
'Really delete?': function() {
$(this).dialog('close');
delete();
},
Cancel: function() {
$(this).dialog('close');
}
}
});
});

Related

Get underlying element in jQuery dialog

I would like to attach a jQuery dialog to it's current parent (let's say, because it contains inputs and it's parent is a child in the form).
So the problem is illustrated here:
http://jsfiddle.net/pprrm4st/2/
I definetly need to find a .container of the current element and attach the dialog to it.
appendTo: $(this).closest('.container'), //I thougnt $(this) would be current .element
Otherwise is there a way to tell jQuery not to move .element nowhere?
this is not the element in that scope, you should note that there are no function calls that would set the thisvalue.
Here's how to solve it using an each loop, where this would be the element etc.
$(".element").each(function() {
$(this).dialog({
modal: true,
autoOpen: false,
appendTo: $(this).closest('.container'),
buttons: {
"I've read and understand this": function() {
$(this).dialog("close");
}
}
});
});
$('a').click(function(){
$(".element").dialog('open');
});
FIDDLE
This also does the trick if you don't wanna have a loop:
$(".element").dialog({
modal: true,
autoOpen: false,
buttons: {
"I've read and understand this": function() {
$(this).dialog("close");
}
}
}).dialog( "option", "appendTo", $(".element").closest('.container') );
$('a').click(function(){
$(".element").dialog('open');
});
or even shorter (and cheaper, because you only traverse once the DOM looking for .element):
var elem = $(".element")
elem.dialog({
modal: true,
appendTo: elem.closest('.container'),
autoOpen: false,
buttons: {
"I've read and understand this": function() {
$(this).dialog("close");
}
}
})
$('a').click(function(){
elem.dialog('open');
});

Add a dialog using jQuery using html generated by jQuery

I want to add a jQuery dialog using an string containing html code stored in a variable. Is it possible? Here is some of the tried code.
$("#remove-post").dialog({
autoOpen: false,
height: 'auto',
width: 'auto',
modal: true
});
$("body").delegate("a.delete-post", "click", function (e) {
e.preventDefault();
button = $(this);
remove_dialog_html = '<div id="remove-post">Are you sure you want to delete this post? Once, deleted it can\'t be reversed.</div>';
$('#remove-post').dialog("open");
});
You can simply change the html of this element.
$('#remove-post').html('<div id="remove-post">Are you sure you want to delete this post? Once, deleted it can\'t be reversed.</div>');
jsFiddle Demo
Edit:
You can also avoid adding the dialog to the original HTML file, by creating and destroying it when you open and close the dialog.
$('<div></div>')
.appendTo('body')
.html(htmlContent)
.dialog({
autoOpen: true,
height: 'auto',
width: 'auto',
modal: true,
close: function (event, ui) {
$(this).remove();
}
});
jsFiddle Demo
You cannot initialize jQuery dialog like this since it is not in the DOM at the page load time (where jQuery initialize the stuff).
What you have to do is that initialize dialog after adding the html to the DOM.
Just before $('#remove-post').dialog("open");
Are you looking for something like this. Check the fiddle below. Changed the code as per your requirement if this is what you are looking for.
http://jsfiddle.net/8R7xA/1/
$("#remove-post").dialog({
autoOpen: false,
height:'auto',
width:'auto',
modal: true
});
$(document).ready(function(){
var remove_dialog_html= '<div id="remove-post">Are you sure you want to delete this post? Once, deleted it can\'t be reversed.</div>';
$('#remove-post').html(remove_dialog_html);
$('#remove-post').dialog("open");
});
Please Refer this link link
Thanks!!
Edit: Try this:
$(document).ready(function () {
$("#divModifyDatesDialog").dialog({
autoOpen: false,
modal: true,
resizable: false,
draggable: false,
position: "center",
width: 550,
buttons: {
"Yes": {
click: function () {
-------------
},
"No": {
click: function () {
------
}
}
}
});

jQuery UI dialog box does not appear

I'm pretty much a total noob to JavaScript and jQuery and I'm having trouble getting a basic dialog box working. Here is my code:
<script type="text/javascript">
$(document).ready(function() {
var dialog = $("#dialog");
dialog.dialog({
title: "Dialog",
modal: true,
draggable: false,
resizable: false,
autoOpen: false,
width: 500,
height: 400
});
dialog.hide();
});
function showDialog() {
$("#dialog").dialog("open");
}
$("ui-widget-overlay").click(function() {
$(".ui-dialog-titlebar-close").trigger("click");
});
</script>
<div id="dialog">
Dialog text.
</div>
<button onclick="showDialog()">Show Dialog</button>
When I click the button, the title bar of the dialog comes up and the background of the page dims, but there are two problems:
The body of the dialog does not show (all that shows is the title bar)
When I click outside of the dialog, the dialog does not close. I have to click the "x" in the corner in order for the dialog to close.
I've been reading tons of related questions on here, but nothing I try seems to work. Any advice?
I believe the problem you're having is from this line:
dialog.hide();
What I would suggest is removing all of the dialog content from the dialog div and populating it when you actually show the dialog.
<div id="dialog"></div>
function showDialog()
{
$("#dialog").html("Dialog Text.");
$("#dialog").dialog("open");
}
As for handling the close part, have you tried nesting everything in the main page in a <div> of its own and then handling that click event?
<div id="mainPageDiv">
</div>
$("#mainPageDiv").click(function(){
$("#dialog").dialog("close");
});
Just use a modal dialog and close the dialog when they click the overlay. Also, you should not need to put any code in $(document).ready for this.
function showDialog() {
var dialog = $("#dialog");
dialog.dialog({
title: "Dialog",
modal: true,
open: function () {
$('.ui-widget-overlay').bind('click', function () {
dialog.dialog('close');
});
}
});
}
Demonstration
I see your:
$("ui-widget-overlay").click(
perhaps should select a class:
$(".ui-widget-overlay").click(
which does not happen as it does not exist, so you need to hook it to the document.
and the dialog.hide(); is not needed as it hides it automatically when it becomes a dialog
SO you should have:
$(document).on('click',".ui-widget-overlay", function() {
$(".ui-dialog-titlebar-close").trigger("click");
});
more simply:(if you have no other dialogs you need to deal with this way)
$(document).on('click',".ui-widget-overlay", function() {
$("#dialog").dialog("close");
});
sample fiddle to show full reworked code: http://jsfiddle.net/GrFE3/2/
I am adding this as an additional answer as it goes about this differently, changing the markup, removing the in-line event handler in the markup, uses your button, and uses your dialog variable (differently than you, but...
<div id="dialog">
Dialog text.
</div>
<button id="showDialog">Show Dialog</button>
and the code for that markup:
$(document).ready(function() {
var dialog = $("#dialog");
dialog.dialog({
title: "Dialog",
modal: true,
draggable: false,
resizable: false,
autoOpen: false,
width: 500,
height: 400
});
$('#showDialog').click(function() {
dialog.dialog("open");
});
$(document).on('click', ".ui-widget-overlay", function() {
dialog.dialog("close");
});
});

Jquery UI Dialog + Jquery Repeats its Functions when Cancelled

please help me on this
Q1: When i clicked the Cancel Button, all the functions seems to repeat calling itself, and I only encounter this in IE
my HTML
<button class="btnCaller">diag caller 1</button>
<button type="button" class="btnCaller">diag caller 2</button >
<table id="diagMenu" style="display:none">
<tr><td>
<input id="anyField"></input>
<button id="cmdInsertNewProject">Ok</button >
<button id="cmdCancelNewProject">Cancel</button >
</td></tr>
</table>
my JS
$(document).ready(function() {
$('.btnCaller').click(function() {
fnAddNewProject()
AddNewProject_ShowUI()
})
});
function fnAddNewProject() {
$('#diagMenu').dialog({
autoOpen: false,
width: 650,
maxHeight: 1000,
maxWidth: 600,
modal: true,
resizable: false,
title: "Insert New Project",
position: "center"
})
$('#btnRun').click(function() {
alert("do other stuff")
})
$('#cmdInsertNewProject').live('click', function() {
InsertNewProject();
})
$('#cmdCancelNewProject').live('click', function() {
$('#diagMenu').dialog('close');
})
}
function InsertNewProject() {
if ($('#anyField').val() == '') {
alert("Fill up field to continue") //dont close the dialog
return false
} else {
//reset and exit
$('#anyField').val('')
$('#diagMenu').dialog('close');
}
}
function AddNewProject_ShowUI() {
$('#diagMenu').dialog('open');
}
i have this on jsFiddle
http://jsfiddle.net/aeris/Qn9HE/
There is a problem with how you're registering the event handlers. The click event handlers should be added only once, so this can be done in ready() method.
Also what ever you are doing in fnAddNewProject() should be done only once, not on every click so you can move the function call to ready()
You can see it working here.
Change
.live('click',
to
.click(
and that should fix your problems, I think.
EDIT:
according to http://api.jquery.com/live/, it appears that the .live() command is deprecated. Try using .on() instead.
So, as it has already been pointed out, the way you are registering your handler with the dialog is causing it to be reregistered every time the event happens. As a result, you get the popup repeatedly (because of the new registration every single time).
With that said, you can make use of jQueryUI's dialog's buttons property to attach your buttons (and the corresponding functions) to your dialog and not have to worry about all this event registration. I didn't complete it, but I updated your example here (you'll note - it's a lot more simple). Please note the "buttons" property that is part of the dialog.
$('#diagMenu').dialog({
autoOpen: false,
width: 650,
maxHeight: 1000,
maxWidth: 600,
modal: true,
resizable: false,
title: "Insert New Project",
position: "center",
buttons: {
"OK": function() {
InsertNewProject();
$(this).dialog("close");
},
"Cancel": function() {
$(this).dialog('close');
}
},
Cancel: function() {
$(this).dialog("close");
}
});

jQuery UI Dialog Box - does not open after being closed

I have a problem with the jquery-ui dialog box.
The problem is that when I close the dialog box and then I click on the link that triggers it, it does not pop-up again unless I refresh the page.
How can I call the dialog box back without refreshing the actual page.
Below is my code:
$(document).ready(function() {
$('#showTerms').click(function()
{
$('#terms').css('display','inline');
$('#terms').dialog({
resizable: false,
modal: true,
width: 400,
height: 450,
overlay: { backgroundColor: "#000", opacity: 0.5 },
buttons:{ "Close": function() { $(this).dialog("close"); } },
close: function(ev, ui) { $(this).remove(); },
});
});
Thanks
You're actually supposed to use $("#terms").dialog({ autoOpen: false }); to initialize it.
Then you can use $('#terms').dialog('open'); to open the dialog, and $('#terms').dialog('close'); to close it.
I solved it.
I used destroy instead close function (it doesn't make any sense), but it worked.
$(document).ready(function() {
$('#showTerms').click(function()
{
$('#terms').css('display','inline');
$('#terms').dialog({resizable: false,
modal: true,
width: 400,
height: 450,
overlay: { backgroundColor: "#000", opacity: 0.5 },
buttons:{ "Close": function() { $(this).dialog('**destroy**'); } },
close: function(ev, ui) { $(this).close(); },
});
});
$('#form1 input#calendarTEST').datepicker({ dateFormat: 'MM d, yy' });
});
on the last line, don't use $(this).remove() use $(this).hide() instead.
EDIT: To clarify,on the close click event you're removing the #terms div from the DOM which is why its not coming back. You just need to hide it instead.
I believe you can only initialize the dialog one time. The example above is trying to initialize the dialog every time #terms is clicked. This will cause problems. Instead, the initialization should occur outside of the click event. Your example should probably look something like this:
$(document).ready(function() {
// dialog init
$('#terms').dialog({
autoOpen: false,
resizable: false,
modal: true,
width: 400,
height: 450,
overlay: { backgroundColor: "#000", opacity: 0.5 },
buttons: { "Close": function() { $(this).dialog('close'); } },
close: function(ev, ui) { $(this).close(); }
});
// click event
$('#showTerms').click(function(){
$('#terms').dialog('open').css('display','inline');
});
// date picker
$('#form1 input#calendarTEST').datepicker({ dateFormat: 'MM d, yy' });
});
I'm thinking that once you clear that up, it should fix the 'open from link' issue you described.
For me this approach works:
The dialog may be closed by clicking the X on the dialog or by clicking 'Bewaren'. I'm adding an (arbitrary) id because I need to be sure every bit of html added to the dom is removed afterwards.
$('<div id="dossier_edit_form_tmp_id">').html(data.form)
.data('dossier_id',dossier_id)
.dialog({
title: 'Opdracht wijzigen',
show: 'clip',
hide: 'clip',
minWidth: 520,
width: 520,
modal: true,
buttons: { 'Bewaren': dossier_edit_form_opslaan },
close: function(event, ui){
$(this).dialog('destroy');
$('#dossier_edit_form_tmp_id').remove();
}
});
<button onClick="abrirOpen()">Open Dialog</button>
<script type="text/javascript">
var $dialogo = $("<div></div>").html("Aqui tu contenido(here your content)").dialog({
title: "Dialogo de UI",
autoOpen: false,
close: function(ev, ui){
$(this).dialog("destroy");
}
function abrirOpen(){
$dialogo.dialog("open");
}
});
//**Esto funciona para mi... (this works for me)**
</script>
This is a super old thread but since the answer even says "It doesn't make any sense", I thought I'd add the answer...
The original post used $(this).remove(); in the close handler, this would actually remove the dialog div from the DOM. Attempting to initialize a dialog again wouldn't work because the div was removed.
Using $(this).dialog('destroy') is calling the method destroy defined in the dialog object which does not remove it from the DOM.
From the documentation:
destroy()
Removes the dialog functionality completely. This will return the element back to its >>pre-init state.
This method does not accept any arguments.
That said, only destroy or remove on close if you have a good reason to.
$(this).dialog('destroy');
works!
.close() is mor general and can be used in reference to more objects. .dialog('close') can only be used with dialogs
I use the dialog as an dialog file browser and uploader then I rewrite the code like this
var dialog1 = $("#dialog").dialog({
autoOpen: false,
height: 480,
width: 640
});
$('#tikla').click(function() {
dialog1.load('./browser.php').dialog('open');
});
everything seems to work great.
I had the same problem with jquery-ui overlay dialog box - it would work only once and then stop unless i reload the page. I found the answer in one of their examples -
Multiple overlays on a same page
flowplayer_tools_multiple_open_close
- who would have though, right?? :-) -
the important setting appeared to be
oneInstance: false
so, now i have it like this -
$(document).ready(function() {
var overlays = null;
overlays = jQuery("a[rel]");
for (var n = 0; n < overlays.length; n++) {
$(overlays[n]).overlay({
oneInstance: false,
mask: '#669966',
effect: 'apple',
onBeforeLoad: function() {
overlay_before_load(this);
}
});
}
}
and everything works just fine
hope this helps somebody
O.
The jQuery documentation has a link to this article
'Basic usage of the jQuery UI dialog'
that explains this situation and how to resolve it.

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