ComponentOne Chart 8.0 for ActiveX

Candle Charts

A candle chart is a special type of HiLoOpenClose Chart used in financial applications to show the opening, closing, high and low prices of a given stock. The "candle" (the solid bar between the opening and closing values) represents the change in stock price from opening to closing. With simple candle charts, a filled candle typically indicates a falling stock price (close was lower than open), and a hollow candle typically indicates a rising stock price (open was lower than close). With complex candle charts, the series2 FillColor represents a rising stock price, and the series3 FillColor represents a falling stock price.

Using ChartStyles, you can customize the fill and line properties of each series.

To Change the Chart Type

Use the ChartType property to set the chart type for one ChartGroup. ChartType is located on the General Tab (ChartGroups) on the Property Pages. Use the ChartType dropdown to select the appropriate chart.

Programming Considerations

The four different series used to draw a candle chart creates a "logical" data set. When programming chart labels, point and set labels and markers, make sure you refer to this logical data set, and not the individual series themselves. For example, if there are 8 series forming 2 different candles, series 0 refers to the first logical data set, and series 1 refers to the second logical data set.