1. #1
    Ext JS Premium Member tvanzoelen's Avatar
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    Default Unanswered: How to scroll selected record into view

    Unanswered: How to scroll selected record into view


    I have this code to select a record and scroll it into view, but it is not working.

    Code:
     grid.getSelectionModel().select(record);
     grid.getView().focusRow(record);
    If somebody knows how to do this, plz tell me!

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    focusRow doesn't do it? What version?
    Mitchell Simoens @SenchaMitch
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    Ext JS Premium Member tvanzoelen's Avatar
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    4.07

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    Using the Array grid example, I did the following and it worked for me:

    Code:
            var rec  = store.getAt(15),
                view = grid.getView();
    
            view.focusRow(rec);
    it scrolled down until 'Intel Corporation' was in view.
    Mitchell Simoens @SenchaMitch
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  5. #5
    Ext JS Premium Member tvanzoelen's Avatar
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    I see, it works if the items are loaded in the view, but how to know that moment in a case like this?

    Code:
    Ext.onReady(function() {
        Ext.QuickTips.init();
    
        // setup the state provider, all state information will be saved to a cookie
        Ext.state.Manager.setProvider(Ext.create('Ext.state.CookieProvider'));
    
        // 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', {
            fields: [
               { name: 'company' },
               { name: 'price', type: 'float' },
               { name: 'change', type: 'float' },
               { name: 'pctChange', type: 'float' },
               { name: 'lastChange', type: 'date', dateFormat: 'n/j h:ia' }
            ],
            data: myData
        });
    
    
        // create the Grid
        var grid = Ext.create('Ext.grid.Panel', {
            store: store,
            stateful: true,
            stateId: 'stateGrid',
            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'
                },
                {
                    xtype: 'actioncolumn',
                    width: 50,
                    items: [{
                        icon: '../shared/icons/fam/delete.gif',  // Use a URL in the icon config
                        tooltip: 'Sell stock',
                        handler: function(grid, rowIndex, colIndex) {
                            var rec = store.getAt(rowIndex);
                            alert("Sell " + rec.get('company'));
                        }
                    }, {
                        getClass: function(v, meta, rec) {          // Or return a class from a function
                            if (rec.get('change') < 0) {
                                this.items[1].tooltip = 'Hold stock';
                                return 'alert-col';
                            } else {
                                this.items[1].tooltip = 'Buy stock';
                                return 'buy-col';
                            }
                        },
                        handler: function(grid, rowIndex, colIndex) {
                            var rec = store.getAt(rowIndex);
                            alert((rec.get('change') < 0 ? "Hold " : "Buy ") + rec.get('company'));
                        }
    }]
                    }
            ],
            height: 350,
            width: 600,
            title: 'Array Grid',
            viewConfig: {
                stripeRows: true
            }
        });
    
        var win = Ext.create('Ext.window.Window', {
            items: [grid]
        });
    
        win.on('show', function() {
            var rec = store.getAt(15);
            var view = grid.getView();
    
            view.focusRow(rec);
        });
    
        win.show();
    
    });
    This is the example, but in my code I do it on the callback if I load the store. At that moment the records are visible in the grid/view but the scrollers are not ready. then the focusRow will not work.

  6. #6
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    AM
    @tvanzoelen: Did you get a solution to this problem?

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