cannot populate Combo with dynamic array

[raj_plays]

Hi, I am trying to populate an Ext.form.ComboBox using a dynamically created 2 - d array.
Whereas a static 2 - d array like the one below works

var messageTypecombo = new Ext.form.ComboBox({
    allowBlank: false,
    typeAhead: true,
    triggerAction: 'all',
    store: new Ext.data.SimpleStore({
        fields: ['value', 'name'],
        data: [
            [0, 'Station Promo'],
            [1, 'Program Promo'],
            [2, 'Sponsor']
        ]
    }),
    mode: 'local',
    displayField: 'name',
    valueField: 'value'
});

The dynamic array like the one below does not. It displays only a 0 in the combo box

var messageTypesArr = [];
messageTypesArr.push([0, 'Station Promo']);
messageTypesArr.push([1, 'Program Promo']);
messageTypesArr.push([2, 'Sponsor']);

var messageTypecombo = new Ext.form.ComboBox({
    allowBlank: false,
    typeAhead: true,
    triggerAction: 'all',
    store: new Ext.data.SimpleStore({
        fields: ['value', 'name'],
        data: messageTypesArr
    }),
    mode: 'local',
    displayField: 'name',
    valueField: 'value'
});
 

Please help

[raj_plays]

Found the error.
I was trying to pouplate the combo before the dynamic array had been loaded.
Silly me.

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