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    Sencha User harman's Avatar
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    Default Unanswered: DeferredRender not working for ExtJS 4.1.1 Ext.tab.Panel

    Unanswered: DeferredRender not working for ExtJS 4.1.1 Ext.tab.Panel


    Hi All,

    I was previously using ExtJS 4.0.7 tabpanel which had a few tabs.
    Each tab had a grid.
    The tab panel was with following config
    Code:
    var tabForm = Ext.create('Ext.tab.Panel', {
        id: 'myTab',
        plain: true,
        deferredRender: false,
        frame : false,
        border :  false,
        defaults: { hideMode: 'offsets' },
        items: [
                  //some tabs with grids
        ]
    });
    which used to render all the grids with the data on first hit to page.

    But as i tried upgrading to 4.1.1 with same code and click on different tabs it doesnt seems to be working and render grid and its records then and there on activation of tab only. I tried putting viewready listener on gridview in 2nd tab's grid and it fires only when i go to the 2nd tab where as it fired in 4.0.7 as soon as i land on the page.

    Is the way of deferred Rendering changed?
    Or is it a Bug?

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    Default Sample code

    Sample code


    Following is the sample code.
    As you see the viewready alert pops up only after going on Tab 2 in ExtJS 4.1.1
    where as it pops up as soon as you land on page in ExtJS 4.0.7.

    Code:
    Ext.create('Ext.data.Store', {
        storeId: 'simpsonsStore1',
        fields: ['name', 'email', 'phone'],
        data: {
            'items': [
                {
                'name': 'Lisa',
                "email": "lisa@simpsons.com",
                "phone": "555-111-1224"},
            {
                'name': 'Bart',
                "email": "bart@simpsons.com",
                "phone": "555-222-1234"},
            {
                'name': 'Homer',
                "email": "home@simpsons.com",
                "phone": "555-222-1244"},
            {
                'name': 'Marge',
                "email": "marge@simpsons.com",
                "phone": "555-222-1254"}
            ]
        },
        proxy: {
            type: 'memory',
            reader: {
                type: 'json',
                root: 'items'
            }
        }
    });
    
    var grid1 = Ext.create('Ext.grid.Panel', {
        title: 'Simpsons',
        store: Ext.data.StoreManager.lookup('simpsonsStore1'),
        columns: [
            {
            text: 'Name',
            dataIndex: 'name'},
        {
            text: 'Email',
            dataIndex: 'email',
            flex: 1},
        {
            text: 'Phone',
            dataIndex: 'phone'}
        ]
    });
    
    Ext.create('Ext.data.Store', {
        storeId: 'simpsonsStore2',
        fields: ['name', 'email', 'phone'],
        data: {
            'items': [
                {
                'name': 'Lisa',
                "email": "lisa@simpsons.com",
                "phone": "555-111-1224"},
            {
                'name': 'Bart',
                "email": "bart@simpsons.com",
                "phone": "555-222-1234"},
            {
                'name': 'Homer',
                "email": "home@simpsons.com",
                "phone": "555-222-1244"},
            {
                'name': 'Marge',
                "email": "marge@simpsons.com",
                "phone": "555-222-1254"}
            ]
        },
        proxy: {
            type: 'memory',
            reader: {
                type: 'json',
                root: 'items'
            }
        }
    });
    
    var grid2 = Ext.create('Ext.grid.Panel', {
        title: 'Simpsons',
        store: Ext.data.StoreManager.lookup('simpsonsStore2'),
        viewConfig: {
            listeners: {
                viewready: function(thisField) {
                    alert("ready 2");
                }
            }
        },
        columns: [
            {
            text: 'Name',
            dataIndex: 'name'},
        {
            text: 'Email',
            dataIndex: 'email',
            flex: 1},
        {
            text: 'Phone',
            dataIndex: 'phone'}
        ]/*,
        listeners: {
            render: function(thisGrid) {
                alert('rendered');
            }
        }*/
    });
    
    var panel1 = new Ext.panel.Panel({
        title: 'tab 1',
        layout: 'fit',
        items: [grid1]
    });
    
    var panel2 = new Ext.panel.Panel({
        title: 'tab 2',
        layout: 'fit',
        items: [grid2]
    });
    
    Ext.create('Ext.tab.Panel', {
        width: 600,
        height: 600,
        activeTab: 0,
        deferredRender: false,
        defaults: { hideMode: 'offsets' },
        items: [
            panel1,
            panel2
            ],
        renderTo: Ext.getBody()
    });

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    Default How to Report a Bug

    How to Report a Bug


    As i do not get any reply on the thread, either i have written something absurd or this really is a bug.
    Can anyone direct me on how to report a Bug please?

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    nothing is an unknown quantity at this point

      0  

    Default


    I have the same problem with a tab not being rendered although using this property.

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