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Setting a Default Value to a ComboBox using Json in ExtJS 3.4

I am trying to set a default value in a ComboBox in ExtJS 3.4 I have tried to set value: 'Standard' in the ComboBox config, but that only places a string in the box. I did some digging around and tried to setup the afterrender function, but still haven't gotten it to populate. The goal is to get the box to actually select the value and populate the box with the Json data, so that the user is able to select from subsequent ComboBoxes.
var hatComboStore = new Ext.data.JsonStore({
autoLoad: true,
fields: [
'BIN_ID',
'BIN_DESC'
],
baseParams: {
method: 'post'
},
url: 'json_bin_hat.php'
});
var hatCombo = new Ext.form.ComboBox({
allowBlank: false,
autoSelect: true,
displayField: 'BIN_DESC',
emptyText: 'Select a hat...',
fieldLabel: 'Hat',
forceSelection: false,
hiddenName: 'hatId',
itemId: 'hatId',
listEmptyText: 'No records found',
listeners: {
afterrender: function(combo, record, index) {
var hat = combo.getValue();
binCombo.store.baseParams.hat = hat;
},
select: function(combo, record, index) {
var hat = combo.getValue();
binCombo.store.baseParams.hat = hat;
},
focus: function(combo) {
binCombo.clearValue();
}
},
mode: 'remote',
msgTarget: 'side',
name: 'hatDesc',
store: hatComboStore,
submitValue: true,
triggerAction: 'all',
valueField: 'BIN_ID'
});
Anyone have any ideas? Thanks for your help!

I've got it to work using an override method.
Basically, the displayValue is what I wanted to display ('Standard') and the value is what I wanted to execute (value: 1). Apparently, the remote store is a little tricky to work with, so that's why the override was necessary.
var hatComboStore = new Ext.data.JsonStore({
autoLoad: true,
fields: [
'BIN_ID',
'BIN_DESC'
],
baseParams: {
method: 'post'
},
url: 'json_bin_hat.php'
});
var hatCombo = new Ext.form.ComboBox({
allowBlank: false,
autoSelect: true,
displayField: 'BIN_DESC',
displayValue: 'Standard',
emptyText: 'Select a hat...',
fieldLabel: 'Hat',
forceSelection: false,
hiddenName: 'hatId',
itemId: 'hatId',
listEmptyText: 'No records found',
listeners: {
afterrender: function(combo, record, index) {
var hat = combo.getValue();
binCombo.store.baseParams.hat = hat;
},
select: function(combo, record, index) {
var hat = combo.getValue();
binCombo.store.baseParams.hat = hat;
},
focus: function(combo) {
binCombo.clearValue();
}
},
mode: 'remote',
msgTarget: 'side',
name: 'hatDesc',
store: hatComboStore,
submitValue: true,
triggerAction: 'all',
valueField: 'BIN_ID'
value: 1
});
//Override method to default hatCombo value to 'Standard' while underlying value = 1
Ext.override(Ext.form.ComboBox, {
initValue: Ext.form.ComboBox.prototype.initValue.createSequence(function() {
if (this.mode == 'remote' && !!this.valueField && this.valueField != this.displayField && this.displayValue) {
if (this.forceSelection) {
this.lastSelectionText = this.displayValue;
}
this.setRawValue(this.displayValue);
}
})
});

Looks like the value prop is not working for remote stores. Probably the combo is rendered before the store has loaded. You can set the value after the store has loaded.
This works for me (tested as an ExtJS 3.4 fiddle).
var hatComboStore = new Ext.data.JsonStore({
autoLoad: true,
fields: [
'id',
'title'
],
url: 'https://jsonplaceholder.typicode.com/todos'
});
var hatCombo = new Ext.form.ComboBox({
fieldLabel: 'Hat',
store: hatComboStore,
displayField: 'title',
valueField: 'id',
mode: 'local',
submitValue: true,
triggerAction: 'all',
// Apparently does not work with remote store.
// value: '1'
});
hatComboStore.on('load', () => hatCombo.setValue('1'));
new Ext.form.FormPanel({
items: hatCombo,
renderTo: Ext.getBody()
});

see example of setting default value:
Combo config:
{
triggerAction: 'all',
id: 'dir_id',
fieldLabel: 'Direction',
queryMode: 'local',
editable: false,
xtype: 'combo',
store : dirValuesStore,
displayField:'name',
valueField:'id',
value: 'all',
width: 250,
forceSelection:true
}
source: Extjs 4 combobox default value

Extjs combobox to display records with value fetched from data store rest/jsp request

With ExtJs (4.2) version, wanted to know how to filter the empty records from the combobox dropdown list.
The code uses Extjs store to fetch a data from jsp, the result is a json object. Say below is the results rendered,
{ "data" : [
{"source":"system1","key1" : "value system1", "key2" : " value for system1"},
{"source":"system2","key1" : "value 11", "key2" : " value for key1, value 12"},
{"source":"system3" }, //Blank or empty key1, key2 record.
....
}
Js code with ExtJs
I am using ExtJs to display a combobox (Dropdown) below is the code fragment
var dataStore = Ext.create('Ext.data.Store', {
autoLoad: true,
fields: ['key1', 'key2'],
proxy:
{
type: 'ajax',
url: '<url to a jsp file which retruns json data>',
reader:
{
type: 'json',
root: 'templates'
}
}
});
...
var screenPanel = {
xtype: 'fieldset',
title: 'Panel - Data',
margin: '0 10 15 15',
padding: 10,
flex: 1,
width:"100%",
layout: 'anchor',
defaults: {
labelWidth: 160,
},
items: [
{
xtype: 'checkbox',
name: 'visibility',
id: 'visibility',
fieldLabel : 'Check to enable',
value:false
},
{
xtype: 'combobox',
anchor: '80%',
name: 'combodropdown',
itemId: 'combo1',
fieldLabel: 'Dropdown selection',
displayField: 'key2',
valueField: 'key1',
store: dataStore,
},{
xtype: 'container',
anchor: '80%',
....
The combox dropdown is listing the empty record as well. Is there a way to filter that value. In the above case the "source" : "system3" doesn't have key1 and key2 value but the xtype:combo (name: combodropdown) is listing a blank item as well.
Is there any example, on using an event to filter the data that are empty. like onClick event to filter the data like below
....
{
xtype: 'combobox',
anchor: '80%',
name: 'combodropdown',
itemId: 'combo1',
fieldLabel: 'Dropdown selection',
displayField: 'key2',
valueField: 'key1',
store: dataStore,
//some thing like this
onClick: function(value1,value2){
alert('clicked combox dropdown')
//data store value empty return something
}

You can use store filter. Something like:
Ext.application({
name: 'Fiddle',
launch: function () {
var dataStore = Ext.create('Ext.data.Store', {
autoLoad: true,
fields: ['key1', 'key2'],
proxy: {
type: 'ajax',
url: 'comboData.json',
reader: {
type: 'json',
root: 'data'
}
},
filters: [
function (item) {
return !Ext.isEmpty(item.get('key1')) && !Ext.isEmpty(item.get('key2'));
}
]
});
Ext.create('Ext.form.Panel', {
title: "Sample Panel",
items: [{
xtype: 'combobox',
name: 'combodropdown',
itemId: 'combo1',
fieldLabel: 'Dropdown selection',
displayField: 'key2',
valueField: 'key1',
store: dataStore,
listeners: {
expand: function(comboBox) {
console.log(comboBox.getStore().getRange());
}
}
}],
renderTo: Ext.getBody()
})
}
});

Dynamically changing property field in ExtJs Grid

I am using a grid with a checkbox and a combobox. Right now I am trying to find a way to make the combobox multi select if the checkbox is checked in roweditor.
var pEditing =
Ext.create('Ext.grid.plugin.RowEditing',
{
clicksToMoveEditor: 2,
errorSummary: false,
autoCancel: false,
listeners:
{
change: function (newValue, oldValue, eOpts)
{
if (newValue.value == true)
{
this.down().down('grid').queryById('comboboxColumn').multiSelect = true;
}
else
{
this.down().down('grid').queryById('comboboxColumn').multiSelect = false;
}
console.log("Checkbox Change Debug");
}
}
});
Grid creation code :
{
renderer: renderCheckbox,
itemId: 'checkboxColumn',
header: 'Checkbox',
width: 100,
sortable: false,
dataIndex: 'ddCheckbox',
editor: {
xtype: 'checkbox',
cls: 'x-grid-checkheader-editor',
listeners:{
change: function (newValue, oldValue, eOpts) {
pEditing.fireEvent('change',newValue, oldValue, eOpts);
}
},
},
},
{
header: 'Speed',
dataIndex: 'ddSpeed',
itemId: 'comboBoxColumn',
width: 125,
editor:
{
xtype: 'combo',
editable: false,
multiSelect: false,
store:
[
['1', '1'],
['2', '2'],
['3', '3'],
['4', '4'],
['5', '5']
]
}
}
Right now the event is firing off and I can see the debug message printed to the log. However the multiselect property is not persisting after the event is fired. Is there any easy way to change the property of this combobox in the row? For example, if there are 3 rows in the grid, row one can have the checkbox checked, and multiple values selected while row two has the checkbox unchecked and only one selection can be made? I know I can find the index of the checkbox selected by using in the change function.
this.down().down('grid').getSelectionModel().getSelection()[0].getData()
Thanks

"multiselect" property is not persisting because, your below code is not yet reach till combo box control.
this.down().down('grid').queryById('comboboxColumn').multiSelect = true;
As per your code, combo box control is under 'comboBoxColumn' item. So specify "itemID" for combo box like
xtype: 'combo',
editable: false,
multiSelect: false,
itemId: 'comboBoxItems',
store:[....]
Then, try below code
this.down().down('grid').queryById('comboboxColumn').queryById('comboBoxItems').multiSelect = true;

As you using RowEditing plugin
In checkbox on value change event you will get 4 parameters change:function(field, newValue, oldValue, eOpts)
1) Usign field parameter you will get your selected row(roweditor) like this field.up().
2) Using this roweditor you can use roweditor.down() method and get your combo.
3) After that getting your component(combo) and using second parameter newValue you can set multiSelect like combo.multiSelect = newValue
Here is I have created an sencha fiddle demo.
Hope this will help you to achieve your solution or requirement
Ext.create('Ext.data.Store', {
storeId: 'simpsonsStore',
fields: ['name', 'email', 'phone'],
data: [{
name: 'Lisa',
email: 'lisa#simpsons.com',
phone: '555-111-1224'
}, {
name: 'Bart',
email: 'bart#simpsons.com',
phone: '555-222-1234'
}, {
name: 'Homer',
email: 'homer#simpsons.com',
phone: '555-222-1244'
}, {
name: 'Marge',
email: 'marge#simpsons.com',
phone: '555-222-1254'
}]
});
// The data store containing the list of states
var states = Ext.create('Ext.data.Store', {
fields: ['abbr', 'name'],
data: [{
"abbr": "AL",
"name": "Alabama"
}, {
"abbr": "AK",
"name": "Alaska"
}, {
"abbr": "AZ",
"name": "Arizona"
}]
});
Ext.create('Ext.grid.Panel', {
title: 'Simpsons',
store: Ext.data.StoreManager.lookup('simpsonsStore'),
columns: [{
header: 'Name',
dataIndex: 'name',
editor: 'textfield'
}, {
header: 'Email',
dataIndex: 'email',
flex: 1,
editor: {
xtype: 'combobox',
allowBlank: false
}
}, {
header: 'Multiple',
dataIndex: 'multiple',
sortable:false,
menuDisabled:true,
flex: 0.5,
editor: {
xtype: 'checkboxfield',
// checked:true,
listeners: {
change: function (field, newValue) {
var combo = field.up().down('#state');
combo.reset();
combo.multiSelect = newValue
}
}
}
}, {
header: 'States',
dataIndex: 'states',
flex: 1,
editor: {
xtype: 'combo',
store: states,
itemId: 'state',
queryMode: 'local',
displayField: 'name',
multiSelect:true,
valueField: 'abbr',
filterPickList: false,
listeners:{
afterrender:function(){
this.multiSelect=false;
}
}
}
}],
selModel: 'rowmodel',
plugins: {
ptype: 'rowediting',
clicksToEdit:1
},
height: 200,
width: '100%',
renderTo: Ext.getBody()
});

Unchecking an ExtJS Grid Filter checkbox doesn't remove the filter

I have using the Features - Filters for gridpanel, using local set to true like so
ftype: 'filters',
local: true
Applying the filter and trying in the textfield automatically enabled the Filter checkbox and the grid is filtered.
Unchecking the checkbox next to filter doesn't remove the filter, the checkbox disappears BUT the grid is still showing filtered records.
If I deleting everything in the textfield then all records are shown.
Edit
Here is an example of the columns, store and model. I have only included a example of the company field, model and store items... The store does work as the grid is being populated and the filter works the first time but then i can't remove the filter.
var columns = [{
header: 'Company',
minWidth: 200,
dataIndex: 'company',
stateId: 'company-stateid',
draggable: false,
flex: 10,
sortable: true,
doSort: oMe.performSort,
filter:
{
type: 'string'
}
Ext.define('APEX.model.CompanyModel', {
extend: 'Ext.data.Model',
fields: [
{name:'company', sortType:Ext.data.SortTypes.asUCString},
Ext.define('APEX.store.Company', {
extend: 'Ext.data.Store',
model: 'APEX.model.CompanyModel',
Ext.apply(me, {
store: mainStore,
columns: columns,
selModel: {
selType: 'rowmodel'
},

I have a problem like yours before, I solved that using this configuration :
//This is my model, you can use type if your field not a string...
Ext.define('EKOJS.model.m_mst_pemohon', {
extend: 'Ext.data.Model',
alias : 'widget.mst_pemohonModel',
fields : [{name: 'id_pemohon',type:'int'},'NIP','Nama_Pemohon','Telp','Email'],
idProperty : 'id_pemohon'
});
//this is my column in the grid
this.columns = [
{
header: 'id_pemohon',filterable:true,
dataIndex: 'id_pemohon',hidden:true
},{
header: 'NIP',filterable:true,
dataIndex: 'NIP'
},{
header: 'Nama_Pemohon',filterable:true,
dataIndex: 'Nama_Pemohon'
},{
header: 'Telp',filterable:true,
dataIndex: 'Telp'
},{
header: 'Email',filterable:true,
dataIndex: 'Email'
}];
// This is for grid filtering feature
this.features = [{
ftype: 'filters',
autoReload: true,
encode: false,
local: true
}
];
In case your problem, you can change your config to this, don't forget to adjust your model too :
var feature = [{
ftype: 'filters',
autoReload: true,
encode: false,
local: true
}
];
var columns = [{
header: 'Company',
minWidth: 200,
dataIndex: 'company',
stateId: 'company-stateid',
draggable: false,
flex: 10,
sortable: true,
doSort: oMe.performSort,
filterable:true
Ext.define('APEX.model.CompanyModel', {
extend: 'Ext.data.Model',
fields: [
{name:'company', sortType:Ext.data.SortTypes.asUCString},
Ext.define('APEX.store.Company', {
extend: 'Ext.data.Store',
model: 'APEX.model.CompanyModel',
Ext.apply(me, {
store: mainStore,
columns: columns,
feature: feature,
selModel: {
selType: 'rowmodel'
},
Hope this help you too.. :D

ComboBox is not working in an EditorGridPanel for ExtJS

I am new to ExtJS and need to put a ComboBox in an EditorGridPanel.
My code so far does not create the combobox in the EditorGridPanel and the EditorGridPanel does not display as well.
Here is the code and thanks for your help. capturetheflag
/*==== INVOICE DATA START =======================================================*/
/* create the ComboBox editor */
var idCombo = new Ext.form.ComboBox({
id: 'id',
valueField: 'id',
displayField:'id',
store: '', //what do I store here??
triggerAction: 'all'
});
var idRenderer = function(value,metaData,record){
// try record.data.teacher here
return "displayValue"
var iLineItemCM = new Ext.grid.ColumnModel([
{
id: 'i_line_item_id',
header: 'Line Item ID',
dataIndex: 'i_line_item_id',
width: 80,
editor: this.idCombo(),
renderer:idRenderer
}
,{
id:'i_line_item_name',
header: "Line Item Name",
dataIndex: 'i_line_item_name',
width: 315,
resizable: true,
align: 'center',
editor: new Ext.form.TextArea({
allowBlank: false
})
}
,{
header: "Amount",
dataIndex: 'i_line_item_amt',
width: 80,
align: 'right',
renderer: 'usMoney',
editor: new Ext.form.NumberField({
allowBlank: false,
allowNegative: false,
maxValue: 100000
})
}
]);
var iLineItemRec =
new Ext.data.Record.create([
{
name: 'i_line_item_id' ,
mapping: 'i_line_item_id' ,
type: 'string'
}
,{
name: 'i_line_item_name' ,
mapping: 'i_line_item_name' ,
type: 'string'
}
,{
name: 'i_line_item_amt' ,
mapping: 'i_line_item_amt' ,
type: 'string'
}
]);
var iLineItemStore = new Ext.data.Store({
url: '',
reader: new Ext.data.JsonReader({
root: 'rows'
},
iLineItemRec
)
});
var iLineItemGrid = new Ext.grid.EditorGridPanel({
id: 'iLineItemStore',
store: iLineItemStore,
cm: iLineItemCM,
cls: 'iLineItemGrid',
width: 'auto',
height: 'auto',
frame: true,
//title:'Edit Plants?',
//plugins:checkColumn,
clicksToEdit:1,
viewConfig: {
//forceFit: true
autoFit:true
},
tbar: [{
text: 'Add',
tooltip:'Add the line item',
handler : function(){
var r = new iLineItemRec({
i_line_item_name: '',
i_line_item_amt: ''
});
iLineItemGrid.stopEditing();
iLineItemStore.insert(0, r);
iLineItemGrid.startEditing(0, 0);
}
},
{
text: 'Delete',
tooltip:'Remove the selected line item',
handler: function(){
iLineItemGrid.stopEditing();
var r = iLineItemGrid.getSelectionModel().getSelectedCell();
iLineItemStore.removeAt(r[1]);
}
}
]
});
/////////////////// CODE ENDS

You need to create a data store and bind that to your combobox. Then in the combo config, you can tell it which field from the store you want to display and which field you want for the value. Here is an example from ExtJS 4 API Docs:
// The data store containing the list of states
var states = Ext.create('Ext.data.Store', {
fields: ['abbr', 'name'], // fields that your data consists of
data : [
{"abbr":"AL", "name":"Alabama"},
{"abbr":"AK", "name":"Alaska"},
{"abbr":"AZ", "name":"Arizona"}
//...
]
});
// Create the combo box, attached to the states data store
var combo = Ext.create('Ext.form.ComboBox', {
fieldLabel: 'Choose State',
store: states, // here you use the store
queryMode: 'local',
displayField: 'name', // you tell your combobox which field to display from the store
valueField: 'abbr', // you tell your combobox which field to use for value from the store
renderTo: Ext.getBody()
});
If you use combo.getValue(), and if e.g. "Alaska" were selected in your combobox, it would return "AK". You can also use the same field as displayField and valueField if you like.