Extjs4 combobox displayValue in grid

Question

Please, help. I want to show my displayValue in the Grid. I found the solution here, but I can\'t understand how use it. My code:

columns:[...,{         


        

Answer 1

var myStore = new Ext.data.Store({
    fields: ['value','display'],
    data: prod_list
});

...

            editor: {
                xtype: 'combobox',
                store: myStore,
                displayField: 'display',
                valueField: 'value'
            },
            renderer: function(val){
                index = myStore.findExact('value',val); 
                if (index != -1){
                    rs = myStore.getAt(index).data; 
                    return rs.display; 
                }
            }