# apex:lineSeries A data series to be rendered as connected points in a linear Visualforce chart. At a minimum you must specify the fields in the data collection to use as X and Y values for each point, as well as the X and Y axes to scale against. **Note:** This component must be enclosed within an `` component. You can have multiple `` and `` components in a single chart. You can also add `` and `` components, but the results might not be very readable. ## Example ```apex ``` ## Attributes | Attribute Name | Attribute Type | Description | Required? | API Version | Access | | ---------------------- | -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------- | ----------- | ------ | | `axis` | String | Which axis this chart series should bind to. Must be one of the four edges of the chart: left, right, top, or bottom The axis bound to must be defined by a sibling `` component. | Yes | 23.0 | | | `fill` | Boolean | A Boolean value that specifies whether the area under the line should be filled or not. If not specified, this value defaults to false. |   | 23.0 | | | `fillColor` | String | A string that specifies the color to use to fill the area under the line, specified as an HTML-style (hexadecimal) color. If not specified, the fill color matches the line color. Only used if fill is set to true. |   | 26.0 | | | `highlight` | Boolean | A Boolean value that specifies whether each point of the series line should be highlighted when the mouse pointer passes over it. If not specified, this value defaults to true. |   | 23.0 | | | `highlightStrokeWidth` | String | A string that specifies the width of the line that is drawn over the series line when it's highlighted. |   | 26.0 | | | `id` | String | An identifier that allows the chart component to be referenced by other components on the page. |   | 23.0 | global | | `markerFill` | String | The color of data point markers for this series, specified as an HTML-style (hexadecimal) color. If not specified, the marker color matches the line color. |   | 23.0 | | | `markerSize` | Integer | The size of each data point marker for this series. If not specified, this value defaults to "3". |   | 23.0 | | | `markerType` | String | The shape of each data point marker for this series. Valid options are: circle or cross If not specified, the marker shape is chosen from a sequence of shapes. |   | 23.0 | | | `opacity` | String | A decimal number between 0 and 1 representing the opacity of the filled area under the line for the series. If not specified, defaults to "0.3". Only used if fill is set to true. |   | 26.0 | | | `rendered` | Boolean | A Boolean value that specifies whether the chart series is rendered in the chart. If not specified, this value defaults to true. |   | 23.0 | | | `rendererFn` | String | A string that specifies the name of a JavaScript function that augments or overrides how each data point is rendered. Implement to provide additional styling or to augment data. |   | 26.0 | | | `showInLegend` | Boolean | A Boolean value that specifies whether this chart series should be added to the chart legend. If not specified, this value defaults to true. |   | 23.0 | | | `smooth` | Integer | An integer specifying the amount of smoothing for the line, with lower numbers applying more smoothing. 0 (zero) disables smoothing, and uses straight lines between the points in the series. |   | 26.0 | | | `strokeColor` | String | A string specifying the color of the line for this series, specified as an HTML-style (hexadecimal) color. If not specified, colors are used in sequence from the chart colorSet or theme. |   | 26.0 | | | `strokeWidth` | String | An integer specifying the width of the line for this series. |   | 26.0 | | | `tips` | Boolean | A Boolean value that specifies whether to display a tooltip for each data point marker when the mouse pointer passes over it. The format of the tip is : . If not specified, this value defaults to true. |   | 23.0 | | | `title` | String | The title of this chart series, which is displayed in the chart legend. |   | 23.0 | | | `xField` | String | The field in each record provided in the chart data from which to retrieve the x-axis value for each data point in the series. This field must exist in every record in the chart data. | Yes | 23.0 | | | `yField` | String | The field in each record provided in the chart data from which to retrieve the y-axis value for each data point in the series. This field must exist in every record in the chart data. | Yes | 23.0 | | **See Also** - [apex:chart](/docs/platform/salesforce-pages-developers-guide/guide/pages-compref-chart.md) - [Other Linear Series Charts](/docs/platform/salesforce-pages-developers-guide/guide/pages-charting-appearance-linear-charts.md) - [Visualforce Charting](/docs/platform/salesforce-pages-developers-guide/guide/pages-charting.md)