I have two instances of the class AddressPanel on the panel.
Ext.define('AddressPanel', {
extend: 'Ext.tab.Panel',
initComponent: function() {
this.items = [
{
title: 'Stations',
itemId : 'pointStation',
closable: false,
items:[
{
xtype: 'combo',
fieldLabel: 'station',
store: stationStore,
queryMode: 'remote',
displayField: 'name',
valueField: 'id',
editable : false
}
Both of them contain comboboxes that are associated with the same very basic store
var stationStore = Ext.create('Ext.data.Store', {
fields: ['id', 'name'],
proxy: {
type: 'ajax',
url : '/address/stationname'
}
});
I can open the combo from the first instance and choose a station.
Then I can open the combo from the second instance and choose another station.
It works fine.
But when I open the combobox from the first instance of AddressPanel again I get an endless loading.
How can I fix it?
Thank you in advance.
You could add an id to your combobox and when you go from the first instance to the second you can reset your combobox with
Ext.getCmp('id').reset();
I made two copies of the store and set the store config of the the first combo to the first copy of the store and the store config of the second combo to the second copy.
It helps.
Related
I have my KendoUI MultiSelect widget initialized like this:
$("#" + key).kendoMultiSelect({
placeholder: placeholder,
dataTextField: dataText,
dataValueField: dataValue,
filter: "contains",
autoBind: false,
dataSource: {
type: "jsonp",
transport: {
read: {
url: urlValue
}
},
error: function(e) {
console.log(e);
}
},
value: GetSavedJSONObject(key),
//value: [
//{ Name: "Chang", Id: 2 },
// { Name: "Uncle Bob's Organic Dried Pears", Id: 7 }
//],
select: removeMark,
change: multiselect_checkForChanges,
autoClose: isAutoClose
});
where GetSavedJSONObject(key) is an array of objects like this:
[Object { Id=1, Name="AA"}, Object { Id=2, Name="BB"}]
The issue I'm facing is when the page loads, I can see "AA" and "BB" in the multiselect widget and no call is made to the url. However, when I attempt to add more items to the widget, there are none to be added because the widget thinks the only items available are the items I specified in the "value" field of the widget during initialization.
In the Server Filtering demo, you will see that the example sets the value of the widget just like I did but when you try to add more items to the widget, then a call is made to the url for more data and the widget opens.
I'm sure this is user error but I just need some pointers on what to try next in order to get the widget to display the rest of the data.
EDIT:
When I made GetSavedJSONObject(key) return an array of the Ids so
[1,2,3]
I was able to click on the widget to get the rest of the data. However, the desired outcome is being able to set the values of the widget (because I have the Id/Name pairs) without having to make the call to the datasource and being able to click on the widget to fetch the rest of the data)
Keeping my array of Objects and setting the serverFiltering: true attribute fixed the issue. Hope this saves someone else time. sigh
Basically I have a Kendo UI Dropdownlist as my first grid column called "instrumentName"
In popup EDIT mode, I can see the correct instrumentName in the dropdown but there's one problem when I change the value:
As soon as I select a new instrument - the instrument ID shows up on the grid (in the background). The updated INSTRUMENT NAME should appear on the grid.
And once I click UPDATE, it does NOT show the instrument NAME, but rather the instrument ID (which is a number).
Some code snippets:
instrDropDown.value(e.model.instrumentId);
nodeGrid = $("#curvesGrid").kendoGrid({
dataSource: new kendo.data.DataSource({ ... });
columns: [
{
field: "instrumentName",
editor: instrumentsDropDownEditor, template: "#=instrumentName#"
},
{
field: "instrumentTypeName"
},
edit: function(e){
var instrDropDown = $('#instrumentName').data("kendoDropDownList");
instrDropDown.list.width(350); // widen the INSTRUMENT dropdown list
if (!e.model.isNew()) {
instrDropDown.value(e.model.instrumentId);
}
}
});
and here's my template editor for that Dropdown :
function instrumentsDropDownEditor(container, options) {
// INIT INSTRUMENT DROPDOWN !
var dropDown = $('<input id="instrumentName" name="instrumentName">');
dropDown.appendTo(container);
dropDown.kendoDropDownList({
dataTextField: "name",
dataValueField: "id",
dataSource: {
type: "json",
transport: {
read: "/api/breeze/GetInstruments"
},
},
pageSize: 6,
//select: onSelect,
change: function () { },
close: function (e) {
},
optionLabel: "Choose an instrument"
}).appendTo(container);
}
Do I need to do anything special on change of the Dropdown ?
thanks.
Bob
dataFieldValue is what is going to be saved as value of the DropDownList. If you want name to be saved then you should define dataValueField as name.
Regarding the background update that's the default behavior since this is an ObservableObject and as consequence changes are automatically propagated. If you don't want this you should probably try using a fake variable for the drop-down and in the save event copy it to the actual field. Do you really need this?
I am trying to create two combo boxes, one enabling users to select a state and the other a local government area (LGA), and have it so the LGAs are filtered on the basis of the state selected. I'm using Ext 3.4 and populating data stores using an AJAX request. The filtering is being done with a REST query to Django.
I believe the issue I'm having is coming down to variable scope, as the first combo box works fine but once I select a state I get an error stating "Uncaught TypeError: Cannot call method 'request' of undefined" when I'm trying to load the URL for the LGA combo box's data store. I've indicated where this is happening with a comment in the code (see below). I'm struggling to understand how I need to rejig the code to make things work. I'm a bit of a newbie to programming so apologies if the solution is a simple one. My code is below.
Thanks in advance for any help.
Ext.onReady(function() {
var stateStore = new Ext.data.JsonStore({
autoDestroy: true,
url: 'states.json',
storeId: 'ste-store',
root: 'records',
id: 'ste-store',
fields: ['state']
});
var lgaStore = new Ext.data.JsonStore({
autoDestroy: true,
url: '',
storeId: 'lga-store',
root: 'records',
id: 'lga-store',
fields: ['lga']
});
var stateCombo = new Ext.form.ComboBox({
renderTo: document.body,
id: 'ste-cb',
typeAhead: true,
triggerAction: 'all',
lazyRender: true,
mode: 'local',
store: stateStore,
displayField: 'state',
valueField: 'state',
listeners: {
render: function(e) {this.getStore().load()},
select: function(combo, record, index) {
var selectedState = record.get('state');
var lgaUrl = 'lgas.json?state=' + selectedState;
lgaStore.url = lgaUrl; //Error is traced back to here
lgaCombo.getStore().load();
}
}
});
var lgaCombo = new Ext.form.ComboBox({
renderTo: document.body,
id: 'lga-cb',
typeAhead: true,
triggerAction: 'all',
lazyRender: true,
mode: 'local',
store: lgaStore,
displayField: 'lga',
valueField: 'lga',
});
});
first mistake of your code in mode. If you fetching data from back-end mode should be remote.
Another i advice your use select event of first combo box to get the data from server .
here is my two combo box which fetch the data remotely
new Ext.form.ComboBox({
id:"myB",
hiddenName:'myserId',
store: myStore(),
emptyText:'Select App ...',
fieldLabel:'Apps',
displayField: 'name',
valueField: 'id',
typeAhead: true,
forceSelection: true,
triggerAction: 'all',
mode:'remote',
maxLength: 50,
editable: false,
listWidth : 345,
anchor : '90%',
selectOnFocus:true,
listeners: {
// 'select' will be fired as soon as an item in the ComboBox is selected with mouse, keyboard.
select: function(combo, record, index){
var geoStorageCB = Ext.getCmp('geoCB');
geoStorageCB.getStore().proxy.setUrl('../test', true);
geoStorageCB.getStore().load({
params:{
id:combo.getValue()
}
});
}
}
}),new Ext.form.ComboBox({
id:"geoCB",
hiddenName:'geoId',
hidden : true,
store:myGeoStorage(),
emptyText:'Select GeoStorage ...',
displayField: 'storageName',
valueField: 'id',
typeAhead: true,
forceSelection: true,
triggerAction: 'all',
mode:'local',
listWidth : 345,
editable: false,
maxLength: 50,
anchor : '90%',
selectOnFocus:true
})
This Example from sencha forum can give you an idea how cascading combo works. I think the main problem of your code is your lgaStore loading method (inside stateCombo listener) doesn't use correct way to pass parameters to Django for the query. As naresh mentioned, you'd better use "lgaCombo.getStore().load({params:{...}});"
I want to add a combobox in my app with a remote store. I have a store that call a php script that returns data in json format and I linked it with my combobox.
The store is autoLoaded but my combobox is still empty.
Here's my store
// Define autocomplete model
Ext.define('modelloAC', {
extend: 'Ext.data.Model',
fields: [
{ name: 'telaio' }
]
});
// store auto complete
var autoCompleteStore = Ext.create('Ext.data.Store', {
model: modelloAC,
autoLoad: true,
proxy: {
type: 'ajax',
url: 'script/request.php?operazione=gettelai',
reader: {
type: 'json',
root: 'telai',
totalProperty: 'results'
}
}
});
My PHP return a JSON array:
{"results":207,"telai":[{"telaio":"ZAR93200001271042"},{"telaio":"ZLA84000001738127"},{"telaio":"VF3WC9HXC33751301"},{"telaio":"W0L0AHL3555247737"}]}
My combobox:
xtype: 'combo',
name: 'telaio',
//hideTrigger: true,
store: autoCompleteStore,
typeAhead: true,
queryMode: 'remote',
fieldLabel: 'Telaio'
My store loads perfectly but my combobox is empty, where's the problem?
Need to add displayField and valueField in combo config:
...
displayField: 'telaio',
valueField: 'telaio',
...
Also model in your store is undefined now. Write it as a string:
...
model: 'modelloAC',
...
I have a grid which uses a remote store and remote pagination because I have too many records.The store for the main grid is:
Ext.define('ArD.store.RecordsListStore', {
extend: 'Ext.data.Store',
model: 'ArD.model.RecordsListModel',
autoLoad: true,
autoSync: true,
remoteSort: true,
remoteFilter: true,
pageSize: 15,
proxy: {
type: 'ajax',
actionMethods: 'POST',
api: {
read: g_settings.baseUrl + 'index.php/recordslist/getAll',
destroy: g_settings.baseUrl + 'index.php/recordslist/deleteRecord'
},
reader: {
type: 'json',
root: 'data',
totalProperty: 'totalCount',
successProperty: 'success'
},
writer: {
root: 'data',
writeAllFields: true,
encode: true
}
}
});
then I populate my grid and and it's all fine. But the problem is that I have a combobox which looks like this:
{
xtype: 'combo',
id: 'records_list_form_id',
emptyText: 'Choose Form',
editable: false,
store: 'FilterRecordsByForm',
displayField: 'title',
valueField: 'id',
lastQuery: '',
triggerAction: 'all',
queryMode: 'remote',
typeAhead: false,
width: 200,
listeners: {
select: this._filterRecords
}
}
And when I select something from the combobox there's the function :
_filterRecords: function()
{
var recStore = Ext.getStore('RecordsListStore');
var a = Ext.getCmp('records_list_form_id').getValue( );
var rec = Ext.getStore('FilterRecordsByForm').getAt(a);
console.log(recStore);
},
mostly just trying some things but I can get the ID of the selected element from the combobox and that is where I am.
What I need is having the id to make a new query usign my AJAX api (PHP/SQL backend) and populate the grid with the info related with this id. In my case I have 1:M relations so when I pass the Id i expect M records which I want to render on the place of the old grid.
Thanks
Leron
Use filter() method. Provide information that you need to filter by and store object will automatically request updated info from the server (you already have remoteFilter configured).
Look at Ext.Ajax() to make an on-demand ajax call to the server-side to load up your data and then use Store.loadData() or something like that to re-populate the Grid.