Develop Reference

How to load extjs 4 grid data on form submission?

I am new to ExtJS.
I am developing a page which has a form at the top and a grid below. When user enters the search criteria in the form and enters Submit, grid has to be populated with data accordingly.
I have managed to get the JSON data from server to the client
console.log('response.responseText');
prints the data correctly, but unable to assign that to the grid.
Here is my code
Ext.define('colModel', {
extend: 'Ext.data.ColumnModel',
fields: [
'personId',
'country',
'idType',
'idValue'
]
});
// create the data store
var store = Ext.create('Ext.data.ArrayStore', {
model: 'colModel',
fields: [
{name: 'personId'},
{name: 'country'},
{name: 'idType'},
{name: 'idValue'}
],
proxy: {
type: 'ajax',
reader: {
type: 'json',
root: 'person'
}
},
autoLoad: false,
});
// create the Grid
var grid = Ext.create('Ext.grid.Panel', {
store: store,
stateful: true,
id: 'myGrid',
stateId: 'stateGrid',
columns: [
{
text : 'Person Id',
flex : 1,
sortable : false,
dataIndex: 'personId'
},
{
text : 'Country',
width : 75,
sortable : true,
dataIndex: 'country'
},
{
text : 'ID Type',
width : 75,
sortable : true,
dataIndex: 'idType'
},
{
text : 'Id Value',
width : 75,
sortable : true,
dataIndex: 'idValue'
},
],
height: 350,
title: 'Array Grid',
renderTo: 'bottom',
viewConfig: {
stripeRows: true,
ForceFit: true,
loadMask:false
}
});
and this function get invoked after form submission and response returned from server
displayGrid : function(response, opts) {
//Received response from the server
console.log('On Success');
responseData = Ext.decode(response.responseText);
console.log('response success ',responseData);
console.log(Ext.getCmp('myGrid').getStore());
grid.getStore().loadData('colModel',false);
}
I have managed to populate grid data on page load using the following code
var store = Ext.create('Ext.data.ArrayStore', {
model: 'colModel',
proxy: {
type: 'rest',
url : 'PersonSearch',
reader: {
type: 'json',
root: 'person'
}
},
autoLoad: true
});
but failed to load grid data on form submission.
Please help. Thanks in advance.
PS: I am using ExtJS 4.2
Update
This is the JSON update, I am getting from the server(caught using Firefox Browser Console)
"{"person":[{"personId":"1","country":"country 1","idType":"idType 1","idValue":"idValue 1"},{"personId":"2","country":"country 2","idType":"idType 2","idValue":"idValue 2"},{"personId":"3","country":"country 3","idType":"idType 3","idValue":"idValue 3"},{"personId":"4","country":"country 4","idType":"idType 4","idValue":"idValue 4"},{"personId":"5","country":"country 5","idType":"idType 5","idValue":"idValue 5"}]}
"

You aren't actually loading the data. Your data is stored in responseData, so your loadData call should load that data into the store. So, your loadData call should be as follows:
grid.getStore().loadData(responseData);
Note that this assumes that your responseData is in the correct format for the store you are loading it into. (Also note that the second parameter is false by default, so it isn't necessary to include it in this case)

Used forgivenson comment and set autoLoad: true
and
Updated the displayGrid method as below
displayGrid : function(response, opts) {
//Received response from the server
console.log('On Success');
responseData = Ext.decode(response.responseText,false);
console.log(response.responseText);
grid.getStore().loadData(responseData.person);
}
and the grid gets populated correctly.

ExtJS 4 Grid unwanted scrolling on load and node selection

I have a problem with the ExtJS 4 grid. I am using ExtJS 4.2.1, and whenever I load data into my grid using the loadRawData function, it automatically scrolls to the bottom, or near the bottom. Also, I am using grouping in the grid, and whenever I expand or collapse the node, it auto scrolls to the bottom again. This is really frustrating, and I can't seem to find a solution. I tried any solutions in this post from the Sencha forums, but nothing seemed to work.
This is my grid config:
gridPanel = new Ext.grid.Panel({
header: false,
title: 'Resultset',
id: 'resultTable',
width: 400,
split: true,
collapsible: true,
collapseMode: 'mini',
store: {
model: 'resultset',
autoLoad: false,
pageSize: 100,
proxy: {
type: 'ajax',
url: STORE_URL,
reader: {
type: 'json',
root: 'rows'
}
},
groupField:'tid'
},
features: [{ftype:'grouping'}],
deferRowRender: false,
columns: createColumns(),
selModel: {
checkOnly: true,
moveEditorOnEnter: false,
width: 20,
mode: 'MULTI'
},
selType: 'rowmodel',
tbar: [ createMenubar() ],
bbar:[ createPagingBar() ],
/*viewConfig: {
preserveScrollOnRefresh: true
}*/
});
And then when I load the data, I just do something like this:
var store = gridPanel.getStore();
store.loadRawData(data, false);
Any help would be appreciated!

How to load data in extJS grid from JSONStore?

I'm having problem loading data from JSON store to EXT grid. Following is the code:
var store = new Ext.data.JsonStore({
root: 'rates',
autoLoad=true,
fields: ['mainid','Country'],
proxy : new Ext.data.HttpProxy({
method: 'GET',
url: '/projectLink/gridData.php'
})
});
var grid = Ext.create('Ext.grid.Panel',{
renderTo: 'grid-rates',
width:700,
height:500,
title:"Country",
store:store,
columns:[
{id: 'mainid', header: "mainid", width: 200, sortable: true, dataIndex: 'mainid'},
{id: 'Country', header: "Country", width: 200, sortable: true, dataIndex: 'Country'}
]
});
The JSON store is getting filled as it sends request to server and data is sent back but the grid is never populated :( What's missing?
Following the JSON that I'm using:
{"count":"18239",
"rates":[
{"mainid":"75966","Country":"Afghanistan Cellular-AT"},
{"mainid":"75967","Country":"Afghanistan Cellular-AWCC"},
{"mainid":"75968","Country":"Afghanistan Cellular-Areeba"},
{"mainid":"75969","Country":"Afghanistan Cellular-Etisalat"},
{"mainid":"75970","Country":"Afghanistan Cellular-Others"},
{"mainid":"75971","Country":"Afghanistan Cellular-Roshan"},
{"mainid":"75972","Country":"Albania"},
{"mainid":"75973","Country":"Albania Cellular-AMC"},
{"mainid":"75974","Country":"Albania Cellular-Eagle"},
{"mainid":"75975","Country":"Albania Cellular-Plus"}
]}
Please help!

use Ext.data.Store instead JsonStore, tested in 4.0.2a
also i can't find JsonStore at the docs
try this:
var store = new Ext.data.Store({
fields:['mainid','Country'],
proxy: {
type: 'ajax',
url : '/projectLink/gridData.php',
reader: {
type: 'json',
root: 'rates',
totalProperty : "count"
}
},
autoLoad : true
});

I'm not sure if this is the problem, but the config autoLoad is wrong.
You have: autoLoad=true
It should be: autoLoad : true

How to load XML into a list using Sencha/Phonegap?

I'm trying to setup a native style app using sencha touch and phonegap. I'm trying to pull in data from an external XML feed into the model.
In my model (Event.js) I have this:
Ext.regModel('Event', {
fields: [
{name: 'title', type: 'string'}
]
});
In my store (eventsstore.js):
ToolbarDemo.eventstore = new Ext.data.Store({
model: 'Event',
sorters: 'title',
getGroupString : function(record) {
return record.get('title')[0];
},
proxy: {
type: 'ajax',
url: 'http://the-url-to-the-file.xml',
reader: {
type: 'xml',
root: 'events',
record: 'event'
}
},
autoLoad: true
});
And in the view (tried as a list):
ToolbarDemo.views.Eventscard = Ext.extend(Ext.List, {
title: "Events",
iconCls: "search",
store: ToolbarDemo.eventstore,
itemTpl: '{title}',
grouped: true,
indexBar: true,
cardSwitchAnimation: 'slide'
});
Ext.reg('eventscard', ToolbarDemo.views.Eventscard);
And tried as a panel:
ToolbarDemo.views.Eventscard = Ext.extend(Ext.Panel, {
title: "Events",
iconCls: "search",
dockedItems: [{
xtype: 'toolbar',
title: 'Events'
}],
layout: 'fit',
items: [{
xtype: 'list',
store: ToolbarDemo.eventstore,
itemTpl: '{title}',
grouped: true
}],
//This was an experiment, safe to leave out?
initComponent: function() {
//ToolbarDemo.eventstore.load();
ToolbarDemo.views.Eventscard.superclass.initComponent.apply(this, arguments);
}
});
Ext.reg('eventscard', ToolbarDemo.views.Eventscard);
Now when I navigate to that card view, the loading overlay/spinner is displayed but that's as far as it goes, the list of items does not appear. Any ideas of what I'm doing wrong?

I am not that much familier with this, I have used like this to display a list.. try this
ToolbarDemo.eventstore.load();
var itemTpl = new Ext.XTemplate('<div id='title'>{title}</div>');
this.eventStoreList = new Ext.List({
id: 'eventStoreList',
store: ToolbarDemo.eventstore,
itemTpl: itemTpl,
height: 370,
indexBar: false
});
this.eventStoreListContainer = new Ext.Container( {
id : 'eventStoreListContainer',
items : [this.eventStoreList]
});
this.items = [this.eventStoreListContainer];
ToolbarDemo.views.Eventscard.superclass.initComponent.apply(this);

Well, I got it working!
I added ToolbarDemo.eventstore.read(); to the end of my store code, saved the XML file locally in the root 'www' folder then using the list method worked fine!
Does any body know why this (calling a remote XML) could be a problem?
EDIT: Turns out that it works fine in the browser like that, but not the iPhone simulator. So now I've set it back to the remote URL and added the URLs to the PhoneGap Whitelist and it works great :)

ExtJS grid filters: how can I load 'list' filter options from external json?

I have a ExtJS (4.0) grid and it works fine. Now I want it to advance it a bit by adding filters to it. I want users to be able to filter items by the status.
I have created the following store:
var status_store = Ext.create('Ext.data.Store', {
model: 'Statuses',
proxy: {
type: 'ajax',
url: '/json/statuses/',
reader: 'json'
}
});
and I can see it loads, /json/statuses/ will return the following json object:
[
{
"name": "OK",
"isActive": true
},
{
"name": "Outdated",
"isActive": true
},
{
"name": "New",
"isActive": true
}
]
Now I define the filters:
var filters = {
ftype: 'filters',
encode: encode,
local: local,
filters: [{
type: 'list',
dataIndex: 'name',
store: 'status_store',
labelField: 'name'
}]
};
and add the filter to my column definition:
{text: 'Status', width: 120, dataIndex: 'status', sortable: true, filterable: true, filter: {type: 'list'}},
What happens is I get the following error when the grid loads:
Uncaught TypeError: Object json has no method 'read' (ext-all-debug.js:25702)
and when I click on the column header for the menu:
Uncaught TypeError: Object status_store has no method 'on' (ListMenu.js:69)
How can I fix this or am I doing something conceptually wrong?
Here is the full quote of my code just in case: http://pastebin.com/SNn6gFJz

Thanks for Diagnosing the problem. The 4.1 fix is this modify ListMenu.js
in the else part of the constructor
replace
me.store.on('load', me.onLoad, me);
with
// add a listener to the store object
var storeObject = Ext.StoreMgr.lookup(me.store);
storeObject.on('load', me.onLoad, me);
me.store = storeObject;

filters: [{
type: 'list',
dataIndex: 'name',
store: 'status_store',
labelField: 'name' ,
options:[a,b]
}]
You also have to give the options in list filters.

I was having a similar problem. I followed the #jd comment on the other answer here but the options menu just said "loading...". I resolved it with a bit of a hack here.