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Index error when setting OHLC Data Point

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Shantimohan asked on 29 Oct 2012, 03:55 PM

I want to display a single candlestick. My XAML & C# code are given below:

My XAML:

<telerikChart:RadCartesianChart x:Name="rccPerformanceOHLC"

Palette="Warm"

Margin="20,0,0,0"

EmptyContent=""

MinWidth="30">

<telerikChart:RadCartesianChart.Behaviors>

<telerikChart:ChartPanAndZoomBehavior HandleDoubleTap="False"

PanMode="None"

ZoomMode="None" />

</telerikChart:RadCartesianChart.Behaviors>

<telerikChart:RadCartesianChart.VerticalAxis>

<telerikChart:LinearAxis LineStroke="{StaticResource PhoneDisabledBrush}"

LineThickness="0"

Maximum="34.7725"

Minimum="34.36"

Visibility="Collapsed" />

</telerikChart:RadCartesianChart.VerticalAxis>

<telerikChart:RadCartesianChart.HorizontalAxis>

<telerikChart:CategoricalAxis LineStroke="{StaticResource PhoneDisabledBrush}"

LineThickness="0"

Visibility="Collapsed" />

</telerikChart:RadCartesianChart.HorizontalAxis>

<telerikChart:CandlestickSeries>

<telerikCharting:OhlcDataPoint Category="Mon"

Open="34.48"

High="34.69"

Low="34.47"

Close="34.63"/>

</telerikChart:CandlestickSeries>

</telerikChart:RadCartesianChart>

My C# code:

private void DisplayOhlcValue(DateTime dtTime, float fOpen, float fHigh, float fLow, float fClose)

{

// Plot the candlelight

CandlestickSeries ohlcSeries = (CandlestickSeries)rccPerformanceOHLC.Series[0];

float min = fLow - ((fHigh - fLow) / 2f);

float max = min + ((fHigh - min) / 0.8f);

((LinearAxis)rccPerformanceOHLC.VerticalAxis).Maximum = max;

((LinearAxis)rccPerformanceOHLC.VerticalAxis).Minimum = min;

// 1. Code that clears the existing data point and adds a new one

//ohlcSeries.DataPoints.Clear();

//ohlcSeries.DataPoints.Add(new OhlcDataPoint());

//ohlcSeries.DataPoints[0].Category = "";

//ohlcSeries.DataPoints[0].Open = fOpen;

//ohlcSeries.DataPoints[0].High = fHigh;

//ohlcSeries.DataPoints[0].Low = fLow;

//ohlcSeries.DataPoints[0].Close = fClose;

// 2. Code that changes OHLC values in the existing data point

//((OhlcDataPoint)ohlcSeries.DataPoints[0]).Category = "";

//((OhlcDataPoint)ohlcSeries.DataPoints[0]).Open = fOpen;

//((OhlcDataPoint)ohlcSeries.DataPoints[0]).High = fHigh;

//((OhlcDataPoint)ohlcSeries.DataPoints[0]).Low = fLow;

//((OhlcDataPoint)ohlcSeries.DataPoints[0]).Close = fClose;

}

I tried two ways to set OHLC values, as seen in the code. But I get an Index out of range error for both. What am I doing wrong?

Index error when setting OHLC Data Point

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