## TimelineCollection class

Specifies the collection of all the <see cref="Timeline"/> objects on the worksheet.It was supported since Excel 2013.

```go

type TimelineCollection struct  {
	ptr unsafe.Pointer
}

```
## Constructors

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

## Methods

| Method | Description |
| --- | --- |
|[IsNull](./isnull/) | Checks whether the implementation object is nullptr. | 
|[Get_Int](./get_int/) | Gets the Timeline by index. | 
|[Get_String](./get_string/) | Gets the Timeline  by Timeline's name. | 
|[Add_PivotTable_Int_Int_String](./add_pivottable_int_int_string/) | Add a new Timeline using PivotTable as data source | 
|[Add_PivotTable_String_String](./add_pivottable_string_string/) | Add a new Timeline using PivotTable as data source | 
|[Add_PivotTable_Int_Int_Int](./add_pivottable_int_int_int/) | Add a new Timeline using PivotTable as data source | 
|[Add_PivotTable_String_Int](./add_pivottable_string_int/) | Add a new Timeline using PivotTable as data source | 
|[Add_PivotTable_Int_Int_PivotField](./add_pivottable_int_int_pivotfield/) | Add a new Timeline using PivotTable as data source | 
|[Add_PivotTable_String_PivotField](./add_pivottable_string_pivotfield/) | Add a new Timeline using PivotTable as data source | 
|[GetCount](./getcount/) | Gets the number of elements contained in the instance. |