View Full Version : Combo does not show selected value on first drop down

5 Mar 2012, 12:21 PM
Hi all

I have a problem where a Combo with a valid selection is not actually shown in view the first time it is dropped down.

The second time the Combo is dropped down, the value is shown fine.

This modified sample test case indicates the problem. This occurs on IE, Firefox and Chrome, all with ExtJS 4.0.7.

Any help gratefully appreciated.


<script language="javascript">

Ext.onReady(function () {
// Define the model for a State
Ext.define('State', {
extend: 'Ext.data.Model',
fields: [
{ type: 'string', name: 'abbr' },
{ type: 'string', name: 'name' },
{ type: 'string', name: 'slogan' }

// The data for all states
var states = [
{ "abbr": "AL", "name": "Alabama", "slogan": "The Heart of Dixie" },
{ "abbr": "AK", "name": "Alaska", "slogan": "The Land of the Midnight Sun" },
{ "abbr": "AZ", "name": "Arizona", "slogan": "The Grand Canyon State" },
{ "abbr": "AR", "name": "Arkansas", "slogan": "The Natural State" },
{ "abbr": "CA", "name": "California", "slogan": "The Golden State" },
{ "abbr": "CO", "name": "Colorado", "slogan": "The Mountain State" },
{ "abbr": "CT", "name": "Connecticut", "slogan": "The Constitution State" },
{ "abbr": "DE", "name": "Delaware", "slogan": "The First State" },
{ "abbr": "DC", "name": "District of Columbia", "slogan": "The Nation's Capital" },
{ "abbr": "FL", "name": "Florida", "slogan": "The Sunshine State" },
{ "abbr": "GA", "name": "Georgia", "slogan": "The Peach State" },
{ "abbr": "HI", "name": "Hawaii", "slogan": "The Aloha State" },
{ "abbr": "ID", "name": "Idaho", "slogan": "Famous Potatoes" },
{ "abbr": "IL", "name": "Illinois", "slogan": "The Prairie State" },
{ "abbr": "IN", "name": "Indiana", "slogan": "The Hospitality State" },
{ "abbr": "IA", "name": "Iowa", "slogan": "The Corn State" },
{ "abbr": "KS", "name": "Kansas", "slogan": "The Sunflower State" },
{ "abbr": "KY", "name": "Kentucky", "slogan": "The Bluegrass State" },
{ "abbr": "LA", "name": "Louisiana", "slogan": "The Bayou State" },
{ "abbr": "ME", "name": "Maine", "slogan": "The Pine Tree State" },
{ "abbr": "MD", "name": "Maryland", "slogan": "Chesapeake State" },
{ "abbr": "MA", "name": "Massachusetts", "slogan": "The Spirit of America" },
{ "abbr": "MI", "name": "Michigan", "slogan": "Great Lakes State" },
{ "abbr": "MN", "name": "Minnesota", "slogan": "North Star State" },
{ "abbr": "MS", "name": "Mississippi", "slogan": "Magnolia State" },
{ "abbr": "MO", "name": "Missouri", "slogan": "Show Me State" },
{ "abbr": "MT", "name": "Montana", "slogan": "Big Sky Country" },
{ "abbr": "NE", "name": "Nebraska", "slogan": "Beef State" },
{ "abbr": "NV", "name": "Nevada", "slogan": "Silver State" },
{ "abbr": "NH", "name": "New Hampshire", "slogan": "Granite State" },
{ "abbr": "NJ", "name": "New Jersey", "slogan": "Garden State" },
{ "abbr": "NM", "name": "New Mexico", "slogan": "Land of Enchantment" },
{ "abbr": "NY", "name": "New York", "slogan": "Empire State" },
{ "abbr": "NC", "name": "North Carolina", "slogan": "First in Freedom" },
{ "abbr": "ND", "name": "North Dakota", "slogan": "Peace Garden State" },
{ "abbr": "OH", "name": "Ohio", "slogan": "The Heart of it All" },
{ "abbr": "OK", "name": "Oklahoma", "slogan": "Oklahoma is OK" },
{ "abbr": "OR", "name": "Oregon", "slogan": "Pacific Wonderland" },
{ "abbr": "PA", "name": "Pennsylvania", "slogan": "Keystone State" },
{ "abbr": "RI", "name": "Rhode Island", "slogan": "Ocean State" },
{ "abbr": "SC", "name": "South Carolina", "slogan": "Nothing Could be Finer" },
{ "abbr": "SD", "name": "South Dakota", "slogan": "Great Faces, Great Places" },
{ "abbr": "TN", "name": "Tennessee", "slogan": "Volunteer State" },
{ "abbr": "TX", "name": "Texas", "slogan": "Lone Star State" },
{ "abbr": "UT", "name": "Utah", "slogan": "Salt Lake State" },
{ "abbr": "VT", "name": "Vermont", "slogan": "Green Mountain State" },
{ "abbr": "VA", "name": "Virginia", "slogan": "Mother of States" },
{ "abbr": "WA", "name": "Washington", "slogan": "Green Tree State" },
{ "abbr": "WV", "name": "West Virginia", "slogan": "Mountain State" },
{ "abbr": "WI", "name": "Wisconsin", "slogan": "America's Dairyland" },
{ "abbr": "WY", "name": "Wyoming", "slogan": "Like No Place on Earth" }

// The data store holding the states; shared by each of the ComboBox examples below
var store = Ext.create('Ext.data.Store', {
model: 'State',
data: states

// Simple ComboBox using the data store
var simpleCombo = Ext.create('Ext.form.field.ComboBox', {
store: store,
fieldLabel: 'Select a single state',
renderTo: Ext.getBody(),
displayField: 'name',
forceSelection: true,
valueField: 'abbr',
width: 320,
labelWidth: 130,
queryMode: 'local'



5 Mar 2012, 12:24 PM
With your code and 4.0.7, Wisconsin was selected

5 Mar 2012, 12:27 PM

To confirm:

You dropped the combo down and the scrollbar went to the bottom of the list showing Wisconsin as the selected item?

5 Mar 2012, 12:40 PM
Did you try it with 4.1?

5 Mar 2012, 12:47 PM
Yes, it actually works with 4.1.

6 Mar 2012, 6:48 AM
yap - suggested that - had a similar issue some time ago... and hopefully ext4.1 is ready before we want to launch our application ;)