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Thread: Simple MVC list not working

  1. #1
    Sencha User
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    Jun 2012
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    Default Answered: Simple MVC list not working

    Hi,

    I'm trying to write my first simple mvc app. I have a Main View and a Products view. I also have a Main controller. My Products view extend Ext.List. My problem is the list doesn't show anything even though I've set the data and itemTpl. Here is my code:

    app.js
    Code:
    Ext.application({
        name: 'SenchaTest',
    
    
        controllers: ['Main'],
    
    
        launch: function() {
            // Destroy the #appLoadingIndicator element
            Ext.fly('appLoadingIndicator').destroy();
            
            Ext.create('SenchaTest.view.Main');
        },
    });
    view/Main.js
    Code:
    Ext.define('SenchaTest.view.Main', {
        extend: 'Ext.TabPanel',
        requires:['Ext.data.Store'],
        
        config: {
            fullscreen: true,
            items:[
                {
                    xtype:'productspage',
                    title:'Products',
                    data: [
                            { title: 'Item 1' },
                            { title: 'Item 2' },
                            { title: 'Item 3' },
                            { title: 'Item 4' }
                    ],
                    itemTpl:'{title}'
                }
            ]
        },
        
        initialize: function() {
            console.log('Main view initialize');
        }
        
    });

    view/Products.js
    Code:
    Ext.define('SenchaTest.view.Products', {
        extend: 'Ext.List',
        xtype: 'productspage',
        
        initialize: function() {
            console.log('Products view initialize');
        },
        
    });
    controller/Main.js
    Code:
    Ext.define('SenchaTest.controller.Main',{
        extend: 'Ext.app.Controller',
        config:{
            views:['Main', 'Products'],
        },
        
        launch: function() {
            console.log('Main Controller launch');
        },
        
        init: function() {
            console.log('Main Controller init');
        }
    });

    Here is what appears in my console:
    Main Controller init
    Products view initialize
    Main view initialize
    Main Controller launch

    So my views and controller are initiated. But nothing shows in my products list. The list component does seem to have been loaded because i can see scrollbars when dragging it.

    The weird thing is if I change the xtype: 'productspage' to xtype:'list' .... it works .... but my products view extend Ext.List ... so isn't it the same?

  2. When you override the initialize method, you need to execute callParent

    Code:
    this.callParent(arguments);

  3. #2
    Sencha - Community Support Team mitchellsimoens's Avatar
    Join Date
    Mar 2007
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    Default

    When you override the initialize method, you need to execute callParent

    Code:
    this.callParent(arguments);
    Mitchell Simoens @LikelyMitch
    Modus Create, Senior Frontend Engineer
    ________________
    Need any sort of Ext JS help? Modus Create is here to help!

    Check out my GitHub:
    https://github.com/mitchellsimoens

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