Show negative & possitive values of Y axis in different colors. eg Green & Red

[Avi]

Hi,

    I wish to show negative and positive values on Y axis with different colors.

    If possible,i also wish to show the values on the series with different color.
    How can i do this.


Thanks,
Avi

[Dwight]

Hello Avi,

Such functionality is not available out-of-the-box, but can be easily achieved.
Here is a sample code of RadChart.BeforeLayout event handler:

private void radChart1_BeforeLayout(object sender, EventArgs e)
{
    foreach (ChartAxisItem item in this.radChart1.PlotArea.YAxis.Items)
    {
        if (item.Value < 0)
            item.TextBlock.Appearance.TextProperties.Color = Color.Red;
    }

    foreach (ChartSeries series in this.radChart1.Series)
        foreach (ChartSeriesItem item in series.Items)
        {
            if (item.YValue < 0)
                item.Label.TextBlock.Appearance.TextProperties.Color = Color.Red;
        }
}

Note, that this code will change the colors of the labels that have negative values for both Y axis and all the series in the chart.

Sincerely yours,
Evtim
the Telerik team

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