I have a combobox and now I want to create a dynamic textfields on change of this combo box in Extjs 4 and i am following the Mvc structure of Extjs .
Mycombo is below
{
xtype : 'combo',
store : 'product.CategoryComboBox',
name: 'category',
id:'category',
displayField: 'name',
valueField: 'idProductCategory',
multiSelect : false,
fieldLabel: 'Category',
allowBlank: false,
allowQueryAll : false,
forceSelection : true,
typeAhead: true,
triggerAction: 'all',
delimiter : ',',
width: 300,
queryMode:'local',
listeners:{select:{fn:function(combo, value) {}
}
You can add a FieldSet like this to your form
{
xtype: 'fieldset',
itemId: 'field_container',
layout: 'anchor',
border: 0,
style: { padding: '0' },
fieldDefaults: {
// field defaults
},
defaultType: 'textfield'
}
so when the combobox changes its value you just do the following
var container = this.down('fieldset[itemId="field_container"]');
container.removeAll();
var fieldsToAdd = [
{ name: 'field1', xtype: 'textfield', value: 'xxxxxx' },
{ name: 'field2', xtype: 'textfield', value: 'yyyyyyy' }
];
container.add(fieldsToAdd);
this way you can decide what the fieldsToAdd contains based on the combobox value.
Set an id to the textfield, then configure the listeners property of your combo as follows :
listeners: {
change: function (combo, value) {
Ext.get('idOfYourTextfield').setValue(value);
}
}
Field container allows to have multiple form fields on the same line, so you could do that:
{
xtype: 'fieldcontainer',
layout: 'hbox',
items: {
xtype: 'combo',
// your config here
listeners: {
change: function () {
this.up('fieldcontainer').add({
xtype: 'textfield',
value: this.getValue()
});
}
}
}
}
Edit
I guess you'll need to test if the text field already exists:
change: function () {
var ct = this.up('fieldcontainer'),
textField = ct.down('textfield');
if (textField) {
textField.setValue(this.getValue());
} else {
ct.add({
xtype: 'textfield',
value: this.getValue()
});
}
}
Related
Intro:
I need to call the backend controller to see if the user is admin. If the user is NOT admin, hide the toolbar in the application. Currently the var is successfully changing; However, it is changing after the view is already created causing the view to always have the toolbar visable.
Problem:
Need to check backend to see if user is in the admin group.
Need to return true if they are in admin group
MyCode:
var adminBool = false;
function CheckAdmin() {
debugger;
var a;
Direct.Report.IsAdmin(this.results, a);
debugger;
};
function results(result, constructor, c, d, e, f, g, h) {
debugger;
this.adminBool= result.adminUser; //returns bool
}
Ext.define('Ext.View.MyViewModel', {
extend: 'Ext.app.ViewModel',
alias: 'viewmodel.AdministrationViewModel',
init: this.CheckAdmin(),
data: {
addNew: true,
update: true,
gridData: null,
isAdmin: this.adminBool
}
});
Synopsis:
Call the backend controller for admin status
Return bool
Update viewModel with bool respectively
ViewModel property,'isAdmin', will bind with hidden property to hide unwanted actions for non admins
UPDATE:
Basically I need a way to delay "isAdmin: this.adminBool" check to after the backend call is finished.
As you are using ViewModel.
So you can use set() method to update your viewmodel field.
I have created an sencha fiddle demo using viewmodel. You can check, how it is working in fiddle. In this fiddle I have not used any API, it just example regarding of ViewModel. Hope this will help you to solve your problem or achieve your requirement.
//ViewModel
Ext.define('MyViewModel', {
extend: 'Ext.app.ViewModel',
alias: 'viewmodel.AdministrationViewModel',
data: {
isAdmin: true
}
});
//Panel
Ext.create('Ext.panel.Panel', {
title: 'ViewModel example',
width: '100%',
renderTo: Ext.getBody(),
viewModel: 'AdministrationViewModel',
layout: {
type: 'vbox', // Arrange child items vertically
align: 'stretch', // Each takes up full width
padding: 10
},
defaults: {
margin: 10
},
items: [{
xtype: 'combo',
height: 40,
fieldLabel: 'Choose Admin or user',
emptyText: 'Choose Admin or user',
labelAlign: 'top',
store: {
fields: ['name', 'value'],
data: [{
"value": true,
"name": "Admin"
}, {
"value": false,
"name": "User"
}]
},
queryMode: 'local',
displayField: 'name',
valueField: 'value',
listeners: {
select: function (combo, record) {
var viewModel = combo.up('panel').getViewModel(),
isAdmin = record.get('value');
//If selected value is {Admin} then we will show toolbar otherwise in case of {User} hide
viewModel.set('isAdmin', !isAdmin);
}
}
}, {
xtype: 'toolbar',
width: '100%',
height: 50,
padding: 10,
bind: {
hidden: '{isAdmin}'
},
items: [{
// xtype: 'button', // default for Toolbars
text: 'Admin',
}, {
xtype: 'splitbutton',
text: 'Split Button'
},
// begin using the right-justified button container
'->', // same as { xtype: 'tbfill' }
{
xtype: 'textfield',
name: 'field1',
emptyText: 'enter search term'
},
// add a vertical separator bar between toolbar items
'-', // same as {xtype: 'tbseparator'} to create Ext.toolbar.Separator
'text 1', // same as {xtype: 'tbtext', text: 'text1'} to create Ext.toolbar.TextItem
{
xtype: 'tbspacer'
}, // same as ' ' to create Ext.toolbar.Spacer
'text 2', {
xtype: 'tbspacer',
width: 50
}, // add a 50px space
'text 3'
]
}]
});
I want to binding a field state (disabled or hidden) according to different selected values in a combobox.
If just one option is selected in combobox works great
Fiddle: https://fiddle.sencha.com/#fiddle/1itf
stackoverflow: Binding component state conditionally
I tried the following way:
bind: {
disabled: ('{isAlabama} || {isAlaska}')
},
Apparently it works. If I select Alabama or Alaska, the field Alabama is hidden.
The problem is that when I select the combobox value Arizona should display the fields
Alabama and Alaska, which does not, just show Alaska.
Fiddle: https://fiddle.sencha.com/#fiddle/1j36 EDITED
It is possible to do this with binding?
I reworded the formulas slightly and moved the AL||AK logic into the hideAlabama formula instead of it being in the disabled property. This keeps the hidden property to a single formula evaluation, as it seemed that multiple formula evaluations were not behaving as expected.
Ext.application({
name : 'Fiddle',
launch : function() {
}
});
var states = Ext.create('Ext.data.Store', {
fields: ['abbr', 'name'],
data : [
{"abbr":"AL", "name":"Alabama"},
{"abbr":"AK", "name":"Alaska"},
{"abbr":"AZ", "name":"Arizona"}
]
});
Ext.define('My.ViewModel', {
extend: 'Ext.app.ViewModel',
alias: 'viewmodel.myviewmodel',
formulas: {
hideAlabama: function(get) {
return get('comboboxvalue') === 'AL' || get('comboboxvalue') === 'AK';
},
hideAlaska: function(get) {
return get('comboboxvalue') === 'AK';
},
hideArizona: function(get) {
return get('comboboxvalue') === 'AZ';
}
}
});
Ext.create('Ext.form.Panel', {
title: 'Sign Up Form',
width: 300,
height: 230,
bodyPadding: 10,
margin: 10,
layout: {
type:'anchor',
align: 'stretch'
},
viewModel:{
type: 'myviewmodel'
},
items: [{
xtype: 'combobox',
fieldLabel: 'Choose State',
store: states,
queryMode: 'local',
displayField: 'name',
valueField: 'abbr',
reference:'combobox',
bind: {
value: '{comboboxvalue}'
}
},{
xtype: 'textfield',
fieldLabel: 'If Alabama, hide',
bind: {
hidden: '{hideAlabama}'
}
},{
xtype: 'textfield',
fieldLabel: 'If Alaska, hide',
bind: {
hidden: '{hideAlaska}'
}
},{
xtype: 'textfield',
fieldLabel: 'If Arizona, hide',
bind: {
hidden: '{hideArizona}'
}
}],
renderTo: Ext.getBody()
});
I defined a view that should be able to be called in two modes. There are only two differences depending on a flag:
title of view (config.title)
selectfield might be shown or hidden
Here is the simplified view:
Ext.define('MyApp.view.fancyView', {
xtype: 'fancyview',
extend: 'Ext.form.Panel',
config: {
cls: 'fancyviewclass',
title: "titleDependingOnFlag",
items: [
{
xtype: 'fieldset',
name: 'fieldsetFancy',
items: [
{
xtype: 'selectfield',
itemId: 'stateID',
usePicker: true,
label: 'state',
store: 'States',
name: 'StateID',
valueField: 'ID',
displayField: 'ID'
},
{
xtype: 'selectfield',
itemId: 'countryID',
usePicker: true,
label: 'country',
store: 'Countries',
name: 'CountryID',
valueField: 'ID',
displayField: 'ID',
//hidden: true
}
]
}
]
}
});
And of course there is a controller that creates this view. At the moment I'm passing the flag as config value, see
Ext.define('MyApp.controller.fancyController', {
...
raisedBasedOnTap:function (flag){
this.myFancyFlag = !!flag;
var myFancyView = Ext.create('FLSMOBILE.minimax.view.CallReportTimestampPlaceCar', {
myFancyFlag: me.myFancyFlag
});
app.pushView(myFancyView);
}
...
});
What would be the best approach to make the title depending on a flag (like title: fancyFlag? 'title1' : 'title2') and hide selectfield countryID based on the flag?
Thanks in advance!
So I have the view below. This view is called when an item from a list on a previous view is tapped. The lists on this view are filtered based on the previous selection, but I want to be able to add items to these lists that contain the same filter (store field = "value"). How can I get it so that the value that is filtering the lists is also passed when clicking the button and loading a new view?
My View page.
Ext.define("MyApp.view.ShowAll", {
extend: 'Ext.Container',
requires: ['Ext.NavigationView', 'Ext.dataview.List', 'Ext.layout.HBox', 'Ext.Container'],
xtype: 'myapp-showall',
config: {
layout: 'hbox',
items: [
{
layout: 'fit',
xtype: 'container',
itemId: 'listContainer',
flex: 1,
items: [
{
xtype: 'list',
store: 'leftStore',
itemTpl: '{storeField}',
emptyText: 'No values added yet'
},
{
xtype: 'toolbar',
docked: 'bottom',
padding: '5px',
items: [{ xtype: 'button', itemId: 'addValue', text: 'Add Values', ui: 'confirm', width:'100%' }]
}
]
},
{
style: "background-color: #333;",
width: 10
},
{
layout: 'fit',
xtype: 'container',
itemId: 'listContainerTwo',
flex: 1,
items: [
{
xtype: 'list',
store: 'rightStore',
itemTpl: '{storeField}',
emptyText: 'No values added yet'
},
{
xtype: 'toolbar',
docked: 'bottom',
padding: '5px',
items: [{ xtype: 'button', itemId: 'addValueRight', text: 'Add Values', ui: 'confirm', width:'100%' }]
}
]
}
]
}
});
Here is part of my Controller (which sets the store filters)
showValues: function() {
this.showValueDetails(arguments[3]);
},
showValueDetails: function(record) {
var title = "Value: "+record['data']['name'];
var showValue = Ext.create('MyApp.view.ShowAll', { title: title });
showValue.setRecord(record);
var valueName = record['data']['name'];
var leftStore = Ext.getStore("leftStore");
leftStore.clearFilter();
leftStore.filter('storeField', valueName);
var rightStore = Ext.getStore("rightStore");
rightStore.clearFilter();
rightStore.filter('storeField', valueName);
this.getMain().push(showValue);
},
It sets the page title correctly and filters the store also. I just am unsure how to pass a variable so when the buttons are clicked the valueName (from controller) is passed to the next view.
Since I was able to set the title fine using the code above, once I click the submit button all it takes is the following to get the title.
var titleVariable = Ext.getCmp('ShowAll')['title'];
I have a formPanel with a column layout. It works perfectly as long as there are visible fields in every column.
I tried adding in hidden fields to provide space for the parts of the column where I need it but it's displaying very strangely. I did try changing to adding in textFields and hiding them but it was not keepingany space at all.
The screenshot below shows what I mean. There is a hidden field at the end of the 1st row at column 3 and at the bottom of the column 1 and 3 but the layout doesn't show that.
The hidden fields have been implemented as (with unique id/name values):
{
id:'my_field_id',
name: 'my_field_name',
xtype: 'hidden'
}
And my formpanel columns have been configured similar to:
id: 'myForm'
,title: 'Search Form'
,frame:true
,waitMessage: 'Please wait.'
,initComponent: function() {
var config = {
items: [{
layout:'table',
items:[{
//columnWidth:.25,
layout: 'form',
items: [{
xtype: 'datefield',
fieldLabel: "From Date",
id: 'date1'
},
{
xtype:'combo',
id: 'fieldSelecCmb1',
hiddenName: 'ddi_country',
anchor:'98%',
store: fieldStore,
displayField: 'name',
valueField: 'alpha2code',
selectOnFocus: true,
mode: 'local',
typeAhead: true,
editable: false,
triggerAction: 'all',
value: 'emp_id',
listeners:{
select: {
fn:function(combo, value){
myStore.load({params:{ddi_country: this.value}});
}
}
}
},
{
id:'my_field',
name: 'my_field',
xtype: 'hidden'
}
]
},
had the same problem .. we defined a component
Ext.define('NCEN.extended.columnSpacer', {
extend: 'Ext.form.field.Display',
alias: 'widget.columnSpacer',
value: ' '
});
and just use it like
xtype: 'columnSpacer'