Hello,

Thank you for your interest in our product. The currency exchange rate function is not suited for the CandleStick chart control or the StockPriceSeries, because the service does not report open/close/high/low values, but only provides the exchange rate and the time. So first you should use another one of the provided chart controls, i.e. AreaChart or LineChart with DateTimeSeries. You can then set-up a timer, that will query the API that provides the data and create the series object that will be used by the chart by plotting the time on the X-axis and the exchange rate of the Y-axis.

We've modified the Real Time Financial Chart demo along the above lines, you can download it here: https://mindfusion.eu/_samples/RealTimeCurrencyExchange.zip

You can modify it additionally to show a different time range, can use additional series, to show additional exchange rates, adjust the minimum and maximum values, etc; it should be enough to get you started.

Regards,
Lyubo