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biohazardo
2 Apr 2012, 5:48 AM
I load grid's store with data. Then I selecting defined record in that grid by:
me.getSelectionModel().select(r);
Than I want to scroll down my grid to this record. I know it's index.

I trying to use scrollByDeltaY, but when I use loadData on my grid, no rows are in grid view, and scroll method doesn't work. What event I need to handle? Tried many, but they are firirng before data show.

scottmartin
2 Apr 2012, 3:16 PM
It should autoscroll on row select. See if the following example works for you:




Ext.define('Company', {
extend: 'Ext.data.Model',
fields: [
{name: 'company'},
{name: 'price', type: 'float'},
{name: 'change', type: 'float'},
{name: 'pctChange', type: 'float'},
{name: 'lastChange', type: 'date', dateFormat: 'n/j h:ia'}
],
idProperty: 'company'
});

Ext.onReady(function() {
Ext.QuickTips.init();

// sample static data for the store
var myData = [
['3m Co', 71.72, 0.02, 0.03, '9/1 12:00am'],
['Alcoa Inc', 29.01, 0.42, 1.47, '9/1 12:00am'],
['Altria Group Inc', 83.81, 0.28, 0.34, '9/1 12:00am'],
['American Express Company', 52.55, 0.01, 0.02, '9/1 12:00am'],
['American International Group, Inc.', 64.13, 0.31, 0.49, '9/1 12:00am'],
['AT&T Inc.', 31.61, -0.48, -1.54, '9/1 12:00am'],
['Boeing Co.', 75.43, 0.53, 0.71, '9/1 12:00am'],
['Caterpillar Inc.', 67.27, 0.92, 1.39, '9/1 12:00am'],
['Citigroup, Inc.', 49.37, 0.02, 0.04, '9/1 12:00am'],
['E.I. du Pont de Nemours and Company', 40.48, 0.51, 1.28, '9/1 12:00am'],
['Exxon Mobil Corp', 68.1, -0.43, -0.64, '9/1 12:00am'],
['General Electric Company', 34.14, -0.08, -0.23, '9/1 12:00am'],
['General Motors Corporation', 30.27, 1.09, 3.74, '9/1 12:00am'],
['Hewlett-Packard Co.', 36.53, -0.03, -0.08, '9/1 12:00am'],
['Honeywell Intl Inc', 38.77, 0.05, 0.13, '9/1 12:00am'],
['Intel Corporation', 19.88, 0.31, 1.58, '9/1 12:00am'],
['International Business Machines', 81.41, 0.44, 0.54, '9/1 12:00am'],
['Johnson & Johnson', 64.72, 0.06, 0.09, '9/1 12:00am'],
['JP Morgan & Chase & Co', 45.73, 0.07, 0.15, '9/1 12:00am'],
['McDonald\'s Corporation', 36.76, 0.86, 2.40, '9/1 12:00am'],
['Merck & Co., Inc.', 40.96, 0.41, 1.01, '9/1 12:00am'],
['Microsoft Corporation', 25.84, 0.14, 0.54, '9/1 12:00am'],
['Pfizer Inc', 27.96, 0.4, 1.45, '9/1 12:00am'],
['The Coca-Cola Company', 45.07, 0.26, 0.58, '9/1 12:00am'],
['The Home Depot, Inc.', 34.64, 0.35, 1.02, '9/1 12:00am'],
['The Procter & Gamble Company', 61.91, 0.01, 0.02, '9/1 12:00am'],
['United Technologies Corporation', 63.26, 0.55, 0.88, '9/1 12:00am'],
['Verizon Communications', 35.57, 0.39, 1.11, '9/1 12:00am'],
['Wal-Mart Stores, Inc.', 45.45, 0.73, 1.63, '9/1 12:00am']
];

/**
* Custom function used for column renderer
* @param {Object} val
*/
function change(val) {
if (val > 0) {
return '<span style="color:green;">' + val + '</span>';
} else if (val < 0) {
return '<span style="color:red;">' + val + '</span>';
}
return val;
}

/**
* Custom function used for column renderer
* @param {Object} val
*/
function pctChange(val) {
if (val > 0) {
return '<span style="color:green;">' + val + '%</span>';
} else if (val < 0) {
return '<span style="color:red;">' + val + '%</span>';
}
return val;
}

// create the data store
var store = Ext.create('Ext.data.ArrayStore', {
model: 'Company',
data: myData
});

// create the Grid
var grid = Ext.create('Ext.grid.Panel', {
store: store,
tbar: [
{
text: 'skip rec:20',
handler: function() {
grid.getSelectionModel().select(20);
}
},
{
text: 'skip rec:1',
handler: function() {
grid.getSelectionModel().select(1);
}
}
],
columns: [
{
text : 'Company',
flex : 1,
sortable : false,
dataIndex: 'company'
},
{
text : 'Price',
width : 75,
sortable : true,
renderer : 'usMoney',
dataIndex: 'price'
},
{
text : 'Change',
width : 75,
sortable : true,
renderer : change,
dataIndex: 'change'
},
{
text : '% Change',
width : 75,
sortable : true,
renderer : pctChange,
dataIndex: 'pctChange'
},
{
text : 'Last Updated',
width : 85,
sortable : true,
renderer : Ext.util.Format.dateRenderer('m/d/Y'),
dataIndex: 'lastChange'
}
],
height: 400,
width: 600,
title: 'Array Grid',
renderTo: Ext.getBody(),
viewConfig: {
stripeRows: true,
enableTextSelection: true
}
});

grid.getSelectionModel().select(0);

});


Regards,
Scott.

biohazardo
2 Apr 2012, 10:20 PM
When the grid is fully loaded by data, and I see that data, it will scroll. If I use .select(1000); from console, it will scroll down to record. Here is my code:


Application.getSomeData().findItems(false,function(response){
//Action returns data
me.grid.store.loadData(response);
//Load data to store


//Then I want to select an item, data in grid isn't visible yet. Selected is an analog of record, that I need to select in grid


if (me.selected){
var id = me.selected.get('ID');
id = parseInt(id);
var record = false;


//Finds my record
Ext.each(me.grid.store.getRange(),function(r){
if (r.get('id') == id)
record = r;
});




console.log(record);
//Then I want to select It
me.grid.getSelectionModel().select(record);
//Some additional methods
me.someaction();
me.someaction2();
}
});


And It will select item, but not sctoll to it, becase in that moment data isn't shown.