doc: Add mode and onPanelChange in API document, close #9785

components/date-picker/index.en-US.md

@@ -51,6 +51,8 @@ The following APIs are shared by DatePicker, MonthPicker, RangePicker, WeekPicke
 | size | determine the size of the input box, the height of `large` and `small`, are 40px and 24px respectively, while default size is 32px | string | - |
 | style | to customize the style of the input box | object | {} |
 | onOpenChange | a callback function, can be executed whether the popup calendar is popped up or closed | function(status) | - |
+| mode | picker panel mode | `time|date|month|year` | 'date' |
+| onPanelChange | callback when picker panel mode is changed | function(value, mode) | - |
 
 ### Common Methods
 

components/date-picker/index.zh-CN.md

@@ -74,6 +74,8 @@ subtitle: 日期选择框
 | value | 日期 | [moment](http://momentjs.com/) | 无 |
 | onChange | 时间发生变化的回调 | function(date: moment, dateString: string) | 无 |
 | onOk | 点击确定按钮的回调 | function() | - |
+| mode | 日期面板的状态 | `time|date|month|year` | 'date' |
+| onPanelChange | 日期面板变化时的回调 | function(value, mode) | - |
 
 ### MonthPicker