1  items: { 2                                 xtype: ‘combobox‘, 3                                 displayField: ‘name‘, 4                                 labelAlign: ‘right‘, 5                                 valueField: ‘num‘, 6                                 matchFieldWidth:false,//默认是true,改成false下拉内容就自动变宽显示在一行了 7                                 value: ‘all‘, 8                                 queryMode: ‘local‘, 9                                 store:10                                     new Ext.data.Store({11                                         fields: [‘name‘, ‘num‘],12                                         data: [{ ‘name‘: ‘11111111111111111111‘, ‘num‘: ‘all‘ },13                                             { ‘name‘: ‘2222222222222222222222‘, ‘num‘: ‘10‘ },14                                             { ‘name‘: ‘3333‘, ‘num‘: ‘0‘ },15                                             { ‘name‘: ‘444‘, ‘num‘: ‘-10‘ }]16                                     }),17 }