| **DataFormatString** |The format string that will form the label text. Supported for numerical DataFields only. You can use a [ClientTemplate]({%slug htmlchart/functionality/clienttemplate/overview%}) to get formatting and ordering as desired. <br /> For **AreaSeries** , **BarSeries** , **ColumnSeries** , **DonutSeries** , **FunnelSeries** , **LineSeries** , **PieSeries** , **RadarAreaSeries** , **RadarColumnSeries** , **RadarLineSeries** , **WaterfallSeries** and **HorizontalWaterfallSeries** use the **{0}** placeholder that denote the **Y** value of the item; for **ScatterSeries** and **ScatterLineSeries** use the **{0}** and **{1}** placeholders that denote the **X** and **Y** values of the item; for **PolarAreaSeries** , **PolarLineSeries** and **PolarScatterSeries** use the **{0}** and **{1}** placeholders that denote accordingly the **Angle** and **Radius** values of the item; for **BubbleSeries** use the **{0}** , **{1}** , **{2}** and **{3}** placeholders that denote accordingly the **X** , **Y** , **Size** and **Tooltip** values of the item. *The Series labels in __BoxPlotSeries__ and __CandlestickSeries__ are not supported.*|
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