| Name | Description | |
|---|---|---|
 | Backward | Gets or sets the property which specifies the number of periods to forecast backward. |
| DataLabel | Returns an instance of IDataLabel which represents the data label of this trendline. |
| DisplayEquation | Gets or sets the property which specifies whether the equation is displayed in the trendline data label. |
| DisplayRSquared | Gets or sets the property which specifies whether the R-Squared value is displayed in the trendline data label. |
| Format | Returns an instance of IChartFormat which represents the formatting options of this trendline. |
| Forward | Gets or sets the property which specifies the number of periods to forecast forward. |
| Index | Returns the zero based index of this trendline. |
| Intercept | Gets or sets the property which specifies the y-intercept of the trendline. |
| InterceptIsAuto | Gets or sets the property which specifies whether the y-intercept of the trendline is automatically determined. |
| Name | Gets or sets the property which specifies a custom name for the trendline. |
| NameIsAuto | Gets or sets the property which specifies whether the name of the trendline is automatically determined. |
| Order | Gets or sets the property which specifies the order on a polynomial trendline. |
| Period | Gets or sets the property which specifies the period on a moving average trendline. |
| Type | Gets or sets the property which specifies the trendline type. |