Cannot read property 'createInstance'. - Angular, Vue, React, Web Components, Javascript, HTML5 Widgets

Tagged: jqxListBox, list

This topic contains 5 replies, has 2 voices, and was last updated by Dimitar 12 years ago.

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Cannot read property ‘createInstance’. Posts
September 4, 2012 at 10:18 am Cannot read property ‘createInstance’. #7402
tremi
Member
```
Hello.

I trying implement ListBox widget to my web site. But when i call
 "$("#list").jqxListBox({ allowDrop: true, allowDrag: true, source: source, width: 200, height: 250});" 
i see error message "Uncaught TypeError: Cannot read property 'createInstance' of undefined".

Can you help me resolve this problem?
```
September 4, 2012 at 10:31 am Cannot read property ‘createInstance’. #7407
Dimitar
Participant
Hello tremi,

Here is an example based on your code which works perfectly fine:
```
<!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>jQuery ListBox Sample</title>
    <link rel="stylesheet" href="../../jqwidgets/styles/jqx.base.css" type="text/css" />
    <script type="text/javascript" src="../scripts/jquery-1.7.2.min.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxcore.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxbuttons.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxscrollbar.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxlistbox.js"></script>
    <script type="text/javascript" src="../jqwidgets/jqxdragdrop.js"></script>
    <script type="text/javascript">
        $(document).ready(function () {
            var source = [
                    "Affogato",
                    "Americano",
                    "Bicerin",
                    "Breve",
                    "Café Bombón",
                    "Café au lait",
                    "Caffé Corretto",
                    "Café Crema",
                    "Caffé Latte",
		        ];
            // Create a jqxListBox
            $("#list").jqxListBox({ allowDrop: true, allowDrag: true, source: source, width: 200, height: 250 });
        });
    </script>
</head>
<body>
    <div id="list">
    </div>
</body>
</html>
```
Best Regards,
Dimitar

jqWidgets team
http://www.jqwidgets.com/
September 4, 2012 at 10:40 am Cannot read property ‘createInstance’. #7409

tremi
Member

I use this widget in context of emberJs application. And i want to know what can call this error.

error details:

Uncaught TypeError: Cannot read property ‘createInstance’ of undefined jqxcore.js:195
(anonymous function) jqxcore.js:195
e.extend.each jquery-1.7.2.min.js:469
e.fn.e.each jquery-1.7.2.min.js:332
a.jqx.jqxWidget.a.fn.(anonymous function) jqxcore.js:169
a.extend.createInstance jqxscrollbar.js:7
(anonymous function) jqxcore.js:196
e.extend.each jquery-1.7.2.min.js:469
e.fn.e.each jquery-1.7.2.min.js:332
a.jqx.jqxWidget.a.fn.(anonymous function) jqxcore.js:169
a.extend.createInstance jqxlistbox.js:7
(anonymous function) jqxcore.js:196
e.extend.each jquery-1.7.2.min.js:469
e.fn.e.each jquery-1.7.2.min.js:332
a.jqx.jqxWidget.a.fn.(anonymous function) jqxcore.js:169
(anonymous function) DashboardController.js:54
f.Callbacks.o jquery-1.7.2.min.js:581
f.Callbacks.p.add jquery-1.7.2.min.js:589
e.fn.e.ready jquery-1.7.2.min.js:334
Astrum.dashboardController.Ember.ArrayController.create.alert DashboardController.js:37
ActionHelper.registerAction.ActionHelper.registeredActions.(anonymous function).handler ember-1.0.pre.js:19458
Ember.EventDispatcher.Ember.Object.extend.setupHandler ember-1.0.pre.js:11250
f.event.dispatch jquery-1.7.2.min.js:1180
f.event.add.h.handle.i

September 4, 2012 at 10:44 am Cannot read property ‘createInstance’. #7411

Dimitar
Participant

Hi tremi,

Did you try our example and did you include all the necessary .js files in your project?

Best Regards,
Dimitar

jqWidgets team
http://www.jqwidgets.com/

September 4, 2012 at 10:58 am Cannot read property ‘createInstance’. #7412

tremi
Member

Hi Dimitar,

I try example. Its work. But in context of my application i see error. And i use all necessary .js files.

September 4, 2012 at 11:16 am Cannot read property ‘createInstance’. #7414

Dimitar
Participant

Hi tremi,

I’m afraid the cause of this issue is unknown to us. However, you may sent a code snippet to support@jqwidgets.com so that we can test it locally and probably be of more help.

Best Regards,
Dimitar

jqWidgets team
http://www.jqwidgets.com/
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