## Timeline class

Summary description of Timeline ViewDue to MS Excel, Excel 2003 does not support Timeline

```go

type Timeline struct  {
	ptr unsafe.Pointer
}

```
## Constructors

| Method | Description |
| --- | --- |

## Methods

| Method | Description |
| --- | --- |
|[IsNull](./isnull/) | Checks whether the implementation object is nullptr. | 
|[GetShowHeader](./getshowheader/) | Indicates whether to display the header of this timeline. | 
|[SetShowHeader](./setshowheader/) | Indicates whether to display the header of this timeline. | 
|[GetShowSelectionLabel](./getshowselectionlabel/) | Indicates whether to display the selction label. | 
|[SetShowSelectionLabel](./setshowselectionlabel/) | Indicates whether to display the selction label. | 
|[GetShowTimeLevel](./getshowtimelevel/) | Indicates whether to display the drop-down selection box of the time level. | 
|[SetShowTimeLevel](./setshowtimelevel/) | Indicates whether to display the drop-down selection box of the time level. | 
|[GetShowHorizontalScrollbar](./getshowhorizontalscrollbar/) | Indicates whether to display the horizontal scroll bar. | 
|[SetShowHorizontalScrollbar](./setshowhorizontalscrollbar/) | Indicates whether to display the horizontal scroll bar. | 
|[GetStartDate](./getstartdate/) | Gets and sets the start date of the timespan scrolling position of this Timeline. | 
|[SetStartDate](./setstartdate/) | Gets and sets the start date of the timespan scrolling position of this Timeline. | 
|[GetCurrentLevel](./getcurrentlevel/) | The current time level of the Timeline. | 
|[SetCurrentLevel](./setcurrentlevel/) | The current time level of the Timeline. | 
|[GetSelectionLevel](./getselectionlevel/) | Gets and sets the time level at which the current selection was made for the Timeline. | 
|[SetSelectionLevel](./setselectionlevel/) | Gets and sets the time level at which the current selection was made for the Timeline. | 
|[GetSelectedDateTimeRange](./getselecteddatetimerange/) | Gets the selected range of date time. | 
|[Select](./select/) | Select item between the date time. | 
|[GetCaption](./getcaption/) | Gets or sets the caption of this Timeline. | 
|[SetCaption](./setcaption/) | Gets or sets the caption of this Timeline. | 
|[GetShape](./getshape/) | Returns the TimelineShape object associated with this Timeline. | 
|[GetName](./getname/) | Returns or sets the name of the specified Timeline | 
|[SetName](./setname/) | Returns or sets the name of the specified Timeline |