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<html>

<head>

<title>Stores</title>

<style>

body{

background-color:#aeaeae;

}

#container{

background-color:#ccc;

}

</style>

Ext.BLANK_IMAGE_URL = 'extjs/resources/images/default/s.gif';

// mapping of the fields as we'll get them from the remote source

// could also just list off each fieldname (not as a config object) if the name matches...

// recordFields = ['id', 'firstname', 'lastname']...

var recordFields = [

{name: 'id', mapping: 'id'},

{name: 'firstname', mapping: 'firstname'},

{name: 'lastname', mapping: 'lastname'},

{name: 'street', mapping: 'street'},

{name: 'city', mapping: 'city'},

{name: 'state', mapping: 'state'},

{name: 'zip', mapping: 'zip'},

{name: 'department', mapping: 'department'}

];

var remoteJsonStore = new Ext.data.JsonStore({

fields : recordFields, // for field mapping

// by specifying the url property, the store will auto-create a Proxy for us

// in this case, a ScriptTagProxy.. but it didnt' work

//url : 'http://extjsinaction.com/dataQuery.php',

proxy : new Ext.data.ScriptTagProxy( {

url : 'http://extjsinaction.com/dataQuery.php'

}),

totalProperty : 'totalCount', // optional field for the "total" results, for pagination

root : 'records', // important: the property where the data is found

id : 'ourRemoteStore',

autoLoad : false, // tell store NOT to auto-fetch upon initialization

remoteSort : true // tell store NOt to sort locally, due to paginated results

});

// not using an xtype for the store (xtype: jsonstore) because we will later bind it to GridPanel and PagingToolbar...

// we'll set up some styling functions for later

var colorTextBlue = function(id) {

return '<span style="color: #0000FF;">' + id + '</span>';

};

// custom renderers are called with 6 arguments... we'll only use the first and third.

var stylizeAddress = function(street, column, record) {

var city = record.get('city');

var state = record.get('state');

var zip = record.get('zip');

return String.format('{0}<br>{1} {2}, {3}', street, city, state, zip );

};

// now for our column model, mapping fields (in the store) to columns

// instead of an instance of Ext.grid.ColumnModel however we're just keeping

// track of an array of the Column configs to use later..

var columnModel = [

{

header: 'ID',

dataIndex : 'id',

sortable : true,

width : 50,

resizable : false,

hidden : true,

renderer : colorTextBlue // an example of a custom renderer function

{

header : 'Last Name',

dataIndex : 'lastname',

sortable : true,

hideable : false,

width: 75

{

header : 'First Name',

dataIndex : 'firstname',

sortable : true,

hideable : false,

width :75

{

header : 'Address',

dataIndex : 'street',

sortable : false,

id : 'addressCol',

renderer : stylizeAddress

{

header : 'Department',

dataIndex : 'department',

sortable : true,

width : 150

}

];

// paging toolbar for pagination, as an Xtype config object

var pagingToolbar = {

xtype : 'paging',

store : remoteJsonStore,

pageSize : 50, // will use this and the "totalCount" property from server to set up pagination counts

displayInfo : true // display current page + total pages

};

// Events...

// a few event handlers

// display a message box

var doMsgBoxAlert = function(thisGrid) {

// "selModel" is the RowSelectionModel, which has a method getSelected() for the Record

var record = thisGrid.selModel.getSelected();

var firstName = record.get('firstname');

var lastName = record.get('lastname');

var msg = String.format(

'The record you chose:<br /> {0}, {1}',

lastName ,

firstName

);

Ext.MessageBox.alert('', msg);

};

var doRowDblClick = function(thisGrid) {

doMsgBoxAlert(thisGrid);

};

var doRowCtxMenu = function(thisGrid, rowIndex, evtObj) {

evtObj.stopEvent();

// another means of getting the SelectionModel

// and in this case we are selecting a row at the index that was clicked

thisGrid.getSelectionModel().selectRow(rowIndex);

// this is a technique to avoid re-instantiating objects more than once

if (!thisGrid.rowCtxMenu) {

thisGrid.rowCtxMenu = new Ext.menu.Menu({

items : {

text : 'View Record',

handler : function() {

doMsgBoxAlert(thisGrid);

}

});

}

thisGrid.rowCtxMenu.showAt(evtObj.getXY());

};

var grid = {

xtype : 'grid', // GridPanel xtype

columns : columnModel,

store : remoteJsonStore,

loadMask : true, // auto mask when loading and paginating

bbar : pagingToolbar,

autoExpandColumn : 'addressCol',

selModel : new Ext.grid.RowSelectionModel({

singleSelect: true

}),

stripRows: true,

listeners: {

rowdblclick: doRowDblClick,

rowcontextmenu: doRowCtxMenu,

// you might want to also destroy this UI widget if it was instantiated

destroy: function(thisGrid) {

// always passes the component being destroyed

if (thisGrid.rowCtxMenu) {

thisGrid.rowCtxMenu.destroy();

}

};

Ext.onReady(function () {

// now a container for our grid!

new Ext.Window({

height : 350,

width : 550,

border : false,

layout : 'fit',

items : grid

}).show();

// and we should tell the Store to load up since we disabled auto loading

Ext.StoreMgr.get('ourRemoteStore').load({

params : {

start : 0,

limit : 50

}

});

</script>

</head>

<body>

</body>

</html>

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