ExtJs中ComboBox使用之技巧

在ExtJs中，想要提交ComboBox的Value，需要设置hiddenName:

 1 xtype: 'combo',
 2                                        fieldLabel: '产品品牌',
 3                                        emptyText: "--产品品牌--",
 4                                        displayField: 'Name',
 5                                        valueField: 'Id',
 6                                        hiddenName:'brand',
 7                                        triggerAction: 'all',
 8                                        width: 120,
 9                                        editable: false,
10                                        forceSelection: true,
11                                        allowBlank: false,
12