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mfaisal
24 Aug 2011, 4:13 AM
i am trying to implement ComboBox but not running properly. When i use Ext.form.Select its working fine but when i use Ext.form.ComboBox its not working properly.

var brandsSelectField = new Ext.create('Ext.form.ComboBox', {
store: store,
name: 'brand',
fieldLabel: 'Select Brand',
displayField: 'name',
valueField: 'value',
});


Program not running if i use this code. Please help me.

Regards,
Muhammad Faisal

tryanDLS
24 Aug 2011, 12:26 PM
'Not working' isn't a valid problem description.

One obvious problem is the extra comma after 'value' - run your code thru jslint.com

http://www.sencha.com/learn/Ext_Forum_Help

keithritt
24 Aug 2011, 2:20 PM
could you include the code that populates your 'store' variable?

also there is no renderTo or contentEl

mfaisal
24 Aug 2011, 10:10 PM
Comma is mistakenly placed.. I also wrote store for result. The complete code is as well.

Ext.regModel('BrandsData', {
fields: [
{ name: 'name', type: 'string' },
{ name: 'value', type: 'int' }
]
});

var store = new Ext.data.JsonStore({
model: 'BrandsData',
method: 'GET',
proxy: {
type: 'ajax',
url: linkTo + '?drpvalue=brands',
reader: {
type: 'json'
}
},
autoLoad: true
});

var brandsSelectField = new Ext.create('Ext.form.ComboBox', {
store: store,
name: 'brand',
fieldLabel: 'Select Brand',
displayField: 'name',
valueField: 'value'
});

what i have to given in renderTo or ContentEI property.

aacoro
25 Aug 2011, 3:15 AM
You just need somewhere to place the combobox in, so you need a panel / window:



var fp = new Ext.form.FormPanel({
renderTo: Ext.getBody(),
id: 'MyFormPanel',
width: 400,
height: 460,
title: 'Testing combobox',
frame: true,
items: [brandsSelectField]
});

aacoro
25 Aug 2011, 3:18 AM
placing your combobox inside the panel items, tells the combobox to renderTo the panel called fp.

If you don't want to place the combox inside the panel, you can add:


renderTo: Ext.getBody()

In the api documents you can read the ComboBox class has his own renderTo. So you can place it inside your code:



var brandsSelectField = new Ext.create('Ext.form.ComboBox', {
store: store,
name: 'brand',
fieldLabel: 'Select Brand',
displayField: 'name',
valueField: 'value',
renderTo: Ext.getBody()
});


This will render it to the HTML body.

Instead of body you can define your own div element inside your HTML page...


Good luck!

raz0r1
25 Aug 2011, 3:24 AM
remove the "new" then it should be fine ;)

Ext.define(); == "new" in Extjs4

as someone else said, if you dont use a panel or something you have to add the renderTo-property.

you can use the following:



var brandsSelectField = Ext.create('Ext.form.ComboBox', {
renderTo: Ext.getBody(),
store: store,
name: 'brand',
fieldLabel: 'Select Brand',
displayField: 'company',
valueField: 'price',
});

});


full page example:


<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
<link rel="stylesheet" href="extjs/resources/css/ext-all.css" />
<script type="text/javascript" src="extjs/ext-all-debug.js"></script>
<script type="text/javascript"><!--


Ext.onReady(function() {
var myData = [
['3m Co', 71.72, 0.02, 0.03, '9/1 12:00am'],
['Alcoa Inc', 29.01, 0.42, 1.47, '9/1 12:00am'],
['Altria Group Inc', 83.81, 0.28, 0.34, '9/1 12:00am'],
['American Express Company', 52.55, 0.01, 0.02, '9/1 12:00am'],
['American International Group, Inc.', 64.13, 0.31, 0.49, '9/1 12:00am'],
['AT&T Inc.', 31.61, -0.48, -1.54, '9/1 12:00am'],
['Boeing Co.', 75.43, 0.53, 0.71, '9/1 12:00am'],
['Caterpillar Inc.', 67.27, 0.92, 1.39, '9/1 12:00am'],
['Citigroup, Inc.', 49.37, 0.02, 0.04, '9/1 12:00am'],
['E.I. du Pont de Nemours and Company', 40.48, 0.51, 1.28, '9/1 12:00am'],
['Exxon Mobil Corp', 68.1, -0.43, -0.64, '9/1 12:00am'],
['General Electric Company', 34.14, -0.08, -0.23, '9/1 12:00am'],
['General Motors Corporation', 30.27, 1.09, 3.74, '9/1 12:00am'],
['Hewlett-Packard Co.', 36.53, -0.03, -0.08, '9/1 12:00am'],
['Honeywell Intl Inc', 38.77, 0.05, 0.13, '9/1 12:00am'],
['Intel Corporation', 19.88, 0.31, 1.58, '9/1 12:00am'],
['International Business Machines', 81.41, 0.44, 0.54, '9/1 12:00am'],
['Johnson & Johnson', 64.72, 0.06, 0.09, '9/1 12:00am'],
['JP Morgan & Chase & Co', 45.73, 0.07, 0.15, '9/1 12:00am'],
['McDonald\'s Corporation', 36.76, 0.86, 2.40, '9/1 12:00am'],
['Merck & Co., Inc.', 40.96, 0.41, 1.01, '9/1 12:00am'],
['Microsoft Corporation', 25.84, 0.14, 0.54, '9/1 12:00am'],
['Pfizer Inc', 27.96, 0.4, 1.45, '9/1 12:00am'],
['The Coca-Cola Company', 45.07, 0.26, 0.58, '9/1 12:00am'],
['The Home Depot, Inc.', 34.64, 0.35, 1.02, '9/1 12:00am'],
['The Procter & Gamble Company', 61.91, 0.01, 0.02, '9/1 12:00am'],
['United Technologies Corporation', 63.26, 0.55, 0.88, '9/1 12:00am'],
['Verizon Communications', 35.57, 0.39, 1.11, '9/1 12:00am'],
['Wal-Mart Stores, Inc.', 45.45, 0.73, 1.63, '9/1 12:00am']
];


var store = Ext.create('Ext.data.ArrayStore', {
fields: [
{name: 'company'},
{name: 'price', type: 'float'},
{name: 'change', type: 'float'},
{name: 'pctChange', type: 'float'}
],
data: myData
});
var brandsSelectField = Ext.create('Ext.form.ComboBox', {
renderTo: Ext.getBody(),
store: store,
name: 'brand',
fieldLabel: 'Select Brand',
displayField: 'company',
valueField: 'price',
});

});
</script>
</head>
<body>
</body>
</html>