ExtJS组合框：已加载的值但未显示

Question

这是我在extjs 2.2版中添加组合框的代码.....数据被加载并显示空行，当选择任何行时，它得到正确的项目，我想将标签对齐左边

提前致谢

Ext.onReady（函数（）{

var relationValues = new Ext.data.Store({
    reader: new Ext.data.JsonReader({
        fields: ['DKEY', 'NAME_AR', 'NAME_EN'],
        root: 'rows'
    }),
    proxy: new Ext.data.HttpProxy({
        url: 'LoadRelation'
    }),
    autoLoad: true
});

var userForm = new Ext.form.FormPanel({

    standardSubmit: true,

    frame:true,
    title: 'User Information',
    width: 350,
    defaults: {width: 230},
    defaultType: 'textfield',
    items: [
        {
            xtype: 'combo',
            name: 'relation',
            fieldLabel: 'Relation',
            mode: 'local',
            store: relationValues,
            displayField:'NAME_EN',
            valueField: 'DKEY',
            //anchor: '100%',
            listeners: {
                select: function(f,r,i){
                    console.log(r);
                }
            }
        }
    ],
    buttons: [{
        text: 'Insert',
        handler: function() {
            userForm.getForm().getEl().dom.action = 'login';
            userForm.getForm().getEl().dom.method = 'POST';
            userForm.getForm().submit();
        }
    },{
        text: 'Reset',
        handler: function() {
            userForm.getForm().reset();
        }
    }]
});
userForm.render('mydiv');

}）;