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  1. #1
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    Default Unanswered: Combo box store 'autoLoad' usage in MVC architecture.

    Unanswered: Combo box store 'autoLoad' usage in MVC architecture.


    I have a small application using MVC architecture.


    I have a button that launches a window having a combobox(Ext.form.field.Combobox). Aim is to keep the combobox store loaded with data once the window is loaded with form fields(including the combobox). All the form values are also loaded dynamically.


    I do not want to use queryMode: 'remote' since it will take quite some time to load when combobox is clicked.


    I tried using two ways with autoLoad=true option:


    1. Explicitly load the store once the form is loaded successfully:


    Code:
    form.load({
        url: '/a/b/c',
        success: function(form, action){
            var ostypeCombo = window.down('combobox');//finding the combobox object
            ostypeCombo.store.load();
        },
        failure: function(){
            alert('failure');
        }
    });
    2. Keep the store ready with data and associate it with combobox in it's init() method:


    Code:
       Ext.define('AM.view.comboItem’' ,{
           extend: 'Ext.form.ComboBox',
           alias : 'widget.comboItem’',    
           xtype: 'combobox',
           
           //store: 'Ostypes', /* this will not work as store is not available during loading */
    
           initComponent: function(arguments) {
           	   this.store = Ext.getStore('comboStore');
               this.callParent(arguments);
           }
       });
    I found that I cannot use above commented configuration as the store is not yet created during load time of the view.
    Is there any other better way to do this?

    Thanks.

  2. #2
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    Default


    You could use bindStore:

    Code:
    Ext.define('MYAPP.view.field.MyCombo', {
        extend : 'Ext.form.field.ComboBox',
        alias  : 'widget.myapp-mycombo',
    
        ..
    
        initComponent : function () {
            var me = this;
    
            ..
    
            me.callParent(arguments);
        },
    
        bindStore : function (store, bool) {
            if (typeof store === 'string') {
                store = new MYAPP.store.MyStore(); // defined in controller:stores
            }
    
            MYAPP.view.field.MyCombo.superclass.bindStore.call(this, store, bool);
        }
    });
    Scott.

  3. #3
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    Default Combo box store 'autoLoad' usage in MVC architecture

    Combo box store 'autoLoad' usage in MVC architecture


    Thanks Scott. That seems like a better approach.

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