Team,
I am having strange problem.
I am having two combo-boxes and I want to cascade one of them using the value of other.
So on select event of one combo-box I am getting another combo box and loading that store.
But what I have observed is the below case.
User selects first combo box value for very first time so store is loaded for second combo box.
When user selects second combo-box for very first time then AJAX call is made don't know why ?
Once again if user selects combo-box one then store is loaded for combo-box second
When user selects second combo-box once again AJAX call is not made (Why AJAX call is made for the first time)
I am not able to understand during step 2 why AJAX call is made for second combo as it is already loaded in step 1.
Code details
xtype: 'combo',id='firstcombo', name: 'DEFAULT_VALUE' ,minChars:2, value: decodeHtmlContent('') ,width:200 ,listWidth:500, resizable: true,
valueField : 'id', displayField: 'id', pageSize: 15,forceSelection:true, enableKeyEvents: true,
store: new Ext.data.Store({reader: new Ext.data.CFQueryReader({id: 'NAME',
fields:[{name:'id', mapping:'id'}]}),
fields: [{name:'id', mapping:'id'}],
url:'server/ajax/Params'
}
}),
listeners : {
select:function(combo, record, index) {
this.setRawValue(decodeHtmlContent(record.get('id')));
cascadeFields();
}
xtype: 'combo',id='secondcombo', name: 'DEFAULT_VALUE' ,minChars:2, value: decodeHtmlContent('') ,width:200 ,listWidth:500, resizable: true,
valueField : 'id', displayField: 'id', pageSize: 15,forceSelection:true, enableKeyEvents: true,
store: new Ext.data.Store({reader: new Ext.data.CFQueryReader({id: 'NAME',
fields:[{name:'id', mapping:'id'}]}),
fields: [{name:'id', mapping:'id'}],
url:'server/ajax/Params',
baseParam:{valuefirst:''}
},
listeners: {
beforeload: function(store, options) {
var value = Ext.getCmp('fistcombo').value;
Ext.apply(options.params, {
valuefirst:value
});
},
}),
listeners : {
select:function(combo, record, index) {
this.setRawValue(decodeHtmlContent(record.get('id')));
}
function cascadeFields()
{
var combo = Ext.getCmp('secondcombo');
if(combo.store)
{
var store = combo.store;
combo.setDisabled(true);
combo.clearValue('');
combo.store.removeAll();
combo.store.load();
combo.setDisabled(false);
}
}
You should specify no autoload on the stores:
autoload: false
And on the combo boxes, you should set the querymode to local:
queryMode: 'local'
Edit: You might want autoload on the first combo store though.
Related
This is my second time I am posting the same question as did not get answer till now.
I have a combobox and following is the store (ExtJs 2.3)
Combo Store:
Assignments
Meetings
Salary
I am filtering the combo on key up so that 'Salary' item wont be diaplyed int he list and it works fine.
But as the combobox item can also be selected by typing iside combobox, I have written following code on keyUp and beforeQuery of the combo.
keyup: function () {
combo2.selectedIndex = -1;
combo2.store.clearFilter();
combo2.store.filterBy(function (record) {
return record.get('text') != 'Salary';
});
}
beforequery: function (queryEvent) {
var combo1Val = combo.value; // Give the selected value correctly
if (combo1Val == 'Student' && combo2.store.isFiltered())
{
queryEvent.combo.expand();
queryEvent.combo.onLoad();
return false;
}
return true;
}
This filters out the 'Salary' option successfully, but now I am not able to select any option by typing the inside combobox as before i.e. now if I type 'As', it is not selecting 'Assignment' option anymore. What I am doing wrong here?
Have you tried using typeAhead?
something like this--
{
xtype: 'combobox',
name: 'address',
id: 'addressId',
store: Ext.create('myStore'),
valueField: 'fullAddress',
displayField: 'name',
minChars: 2,
typeAheadDelay: 100,
typeAhead: true,
emptyText: 'Select Address',
listEmptyText: 'error loading list!',
width: 300
}
I have in my ExtJS 4.2.1 Application a grid with the following editable column:
text: 'Location',
dataIndex: 'LocationId',
width: 140,
renderer: function(value) {
var record = me.store.findRecord('LocationId', value);
return record.get('Description');
},
editor: {
xtype: 'combobox',
typeAhead: true,
triggerAction: 'all',
store: Ext.create('App.store.catalog.Location', {
autoLoad: true
}),
displayField: 'Description',
valueField: 'LocationId',
listConfig: {
width: 250,
loadingText: 'Searching...',
// Custom rendering template for each item
getInnerTpl: function() {
return '<b>{Code}</b><br/>(<span style="font-size:0.8em;">{Description}</span>)';
}
}
}
The combo has a renderer to display the Description of the LocationId selected.
Then, my grid has the feature 'Ext.grid.plugin.CellEditing' so I can edit just that column cell.
The problem that I have is when I press the "Update" button, the combo display value returns to the original it used to have, even if the LocationId in the record has the right value.
This is my code that gets fired when the user press the "Update" button.
me.rowEditing = Ext.create('Ext.grid.plugin.RowEditing', {
clicksToMoveEditor: 1,
autoCancel: false,
listeners: {
edit: function(editor, e) {
var record = e.record;
me.setLoading('Updating...');
App.util.Ajax.request({
noMask: true,
url: '/api/catalog/UpdateEmployeeLocation',
jsonData: record.getData(),
success: function(response, opts) {
var obj = Ext.decode(response.responseText);
if (obj.success) {
// commit changes (no save just clear the dirty icon)
me.getStore().commitChanges();
}
},
callback: function() {
me.setLoading(false);
}
});
}
}
});
The record is saved correctly in my database but the combo display value is not updated with the description that corresponds to the LocationId. If I reload the store from server again then It shows correctly.
So, there is something wrong with the renderer in my column that is not updating the value after I update my record.
Any clue on how to get around this?
Thanks.
You are setting dataIndex as 'LocationId' but no where you are changing the 'LocationId', you are just changing description and updating it in rendered method. Since there no change in 'LocationId', store doesn't consider it as dirty field and hence rendered function is not getting called. One quick and dirty way could be instead of using 'LocationId', create another field in the model say 'LocationIdchangeTraker'. Use 'LocationIdchangeTraker' instead of 'LocationId' in data index. It doesn't not effect your view because you are changing the value in reneerer function. Now whenever you update the function change the value of 'LocationIdchangeTraker' as shown below.
record.set('LocationIdchangeTraker',Ext.getId());
I have a combo box inside a form like:
xtype: 'combo',
id: 'example',
name: 'ax',
triggerAction: 'all',
forceSelection: true,
editable: false,
allowBlank: false,
fieldLabel: 'example',
mode: 'remote',
displayField:'name',
valueField: 'id',
store: Ext.create('Ext.data.Store', {
fields: [
{name: 'id'},
{name: 'name'}
],
//autoLoad: false,
proxy: {
type: 'ajax',
url: 'example.php',
reader: {
type: 'json',
root: 'rows'
}
}
}
})
I don't want that auto load because that's slow when i start.
But i want set a value to combo box when i click edit button and load value to combo
this.down('form').getForm().load({
url: 'load.php',
success:function(){
}
});
data from load.php like (name of combe is ax)
{ success:true , data : { ax: '{"id":"0","name":"defaults"}' } }
But that's not working. How can i do that thanks.
p/s: If i have autoLoad : true and data is { success:true , data : { ax: '0' } } that's work well. But that's slow when i start.
What you want to do is make sure the combo is loaded before you try to set it's value.
You could check if the combo's store has any data in it:
if(combo.getStore().getCount() > 0)
{
//the store has data so it must be loaded, you can set the combo's value
//doing a form.load will have the desired effect
}
else
{
//the store isn't loaded yet! You can't set the combo's value
//form.load will not set the value of the combo
}
If it does, you can just set the value. But more likely however it will not have been loaded.
You could also do something like this
//in the controller's init block
this.control({
"#myEditButton" : {click: this.loadForm}
});
//a function in your controller
loadForm: function(button)
{
var combo; //get your combo somehow, either via references or via the button
combo.getStore().load({
scope: this,
callback:
function(records, operation, success)
{
if(success)
{
//load your form here
}
}
});
}
I know that might seem like a lot of code, but it's the only way to know for sure if the combo was loaded. If it is not, you cannot set it's value.
A third option would just be to explicitly load the store before you open your view.
I have a combo box which populates its values based on the selection of another combobox.
I have seen examples where the params in the underlying store are changed based on the selection, but what I want to achieve is to change the store itself of the second combo based on the selection on the first combo. This is my code, but it doesn't work. Can someone please help?
{
xtype: 'combo',
id: 'leads_filter_by',
width: 100,
mode: 'local',
store: ['Status','Source'],
//typeAhead: true,
triggerAction: 'all',
selectOnFocus:true,
typeAhead: false,
editable: false,
value:'Status',
listeners:{
'select': function(combo,value,index){
var filter_to_select = Ext.getCmp('cmbLeadsFilter');
var container = filter_to_select.container;
if (index == 0){
filter_to_select.store=leadStatusStore;
filter_to_select.displayField='leadStatusName';
filter_to_select.valueField='leadStatusId';
} else if(index==1) {
filter_to_select.store=leadSourceStore;
filter_to_select.displayField='leadSourceName';
filter_to_select.valueField='leadSourceId';
}
}
}
},
{
xtype: 'combo',
id: 'cmbLeadsFilter',
width:100,
store: leadStatusStore,
displayField: 'leadStatusName',
valueField: 'leadStatusId',
mode: 'local',
triggerAction: 'all',
selectOnFocus:true,
typeAhead: false,
editable: false
},
That is not how its designed to work!! When you set a store in the config, you are binding a store to the combo. You don't change the store, instead you are supposed to change the data when required.
The right way of doing it would be to load the store with correct data from the server. To fetch data, you can pass params that will help the server side code get the set of options you need to load.
You will not want to change the store being used... Simply put, the store is bound to the control as it is instantiated. You can, however, change the URL, and params/baseParams used in any additional POST requests.
Using these params, you can code your service to return different sets of data in your combo box's store.
For the proposed problem you can try below solution :
Use below "listener" snippet for the first "leads_filter_by" combo. It will handle the dynamic store binding / changing for the second combobox.
listeners:{
'select': function(combo,value,index){
var filter_to_select = Ext.getCmp('cmbLeadsFilter');
var container = filter_to_select.container;
if (index == 0){
//filter_to_select.store=leadStatusStore;
filter_to_select.bindStore(leadStatusStore);
filter_to_select.displayField='leadStatusName';
filter_to_select.valueField='leadStatusId';
} else if(index==1) {
//filter_to_select.store=leadSourceStore;
filter_to_select.bindStore(leadSourceStore);
filter_to_select.displayField='leadSourceName';
filter_to_select.valueField='leadSourceId';
}
}
}
Hope this solution will help you.
Thanks & Regards.
I had a similar problem. The second combobox would load the store and display the values, but when I would select a value, it would not actually select. I would click the list item and the combobox value would remain blank.
My research also suggested that it was not recommended to change the store and field mappings on a combobox after initialization so here was my solution:
Create a container in the view that would hold the combobox to give me a reference point to add it back later
Grab a copy of the initial config off of the combobox ( this lets me set my config declaritively in the view and not hard code it into my replace function ... in case I want to add other config properties later)
Apply new store, valueField and displayField to that config
Destroy old combobox
Create new combobox with modified config
Using my reference from step 1, add the new combobox
view:
items: [{
xtype: 'combobox',
name: 'type',
allowBlank: false,
listeners: [{change: 'onTypeCombo'}],
reference: 'typeCombo'
}, { // see controller onTypeCombo for reason this container is necessary.
xtype: 'container',
reference: 'valueComboContainer',
items: [{
xtype: 'combobox',
name: 'value',
allowBlank: false,
forceSelection: true,
reference: 'valueCombo'
}]
}, {
xtype: 'button',
text: 'X',
tooltip: 'Remove this filter',
handler: 'onDeleteButton'
}]
controller:
replaceValueComboBox: function() {
var me = this;
var typeComboSelection = me.lookupReference('typeCombo').selection;
var valueStore = Ext.getStore(typeComboSelection.get('valueStore'));
var config = me.lookupReference('valueCombo').getInitialConfig();
/* These are things that get added along the way that we may also want to purge, but no problems now:
delete config.$initParent;
delete config.childEls;
delete config.publishes;
delete config.triggers;
delete config.twoWayBindable;
*/
config.store = valueStore;
config.valueField = typeComboSelection.get('valueField');
config.displayField = typeComboSelection.get('displayField');
me.lookupReference('valueCombo').destroy();
var vc = Ext.create('Ext.form.field.ComboBox', config);
me.lookupReference('valueComboContainer').add(vc);
},
My combobox's data is loaded after the form layout.
var villeStore = new Ext.data.ArrayStore({
fields: [{name:'idVille'}
,{name: 'ville'}]
});
var villeInput = new Ext.form.ComboBox({
fieldLabel: 'Ville',
store: villeStore,
valueField:'idVille',
displayField:'ville',
typeAhead: true,
mode: 'local',
triggerAction: 'all',
emptyText:'Ville',
width:100,
id:'villeInput'
});
The problem is that I need to display the last of the store, but even have the valueField, because when I click on a button, this is what I send to server
I did this, but it don't work, it show the last store value, but don't have the valueField
villeInput.store.on('load',function(store) {
villeInput.setValue(store.getAt(villeInput.store.getCount()-1).get('ville'));
});
The problem is that you need to set the value of the combo using the valueField (which is idVille) instead of the displayField:
villeInput.store.on('load',function(store) {
villeInput.setValue(store.getAt(villeInput.store.getCount()-1).get('idVille'));
});
Try this:
villeInput.store.on("load", function(store) {
villeInput.setValue(ActualidVille, false);
}, this);