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By Rick Merritt - 9 Years Ago
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I am trying to turn line series on and off based on a user clicking on the legend data item. Unfortunately the hit test always returns a 0 (zero) no matter which cell I click on in the legend. Any help would be appreciated.
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By Nevron Support - 9 Years Ago
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So far it looks like a bug in the control we'll investigate it further and fix it for the upcoming 2015 release.
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By Rick Merritt - 9 Years Ago
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Any Idea for a work-around?
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By Rick Merritt - 9 Years Ago
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Was this ever fixed in the latest release?
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By Nevron Support - 9 Years Ago
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Hi Rick,
This issue is not present in the 2015 release - we just tested with the following code and it was working OK:
private void Form1_Load(object sender, EventArgs e)
{
NChart chart = nChartControl1.Charts[0];
NBarSeries bar = new NBarSeries();
bar.Legend.Mode = SeriesLegendMode.DataPoints;
for (int i = 0; i < 10; i++)
{
bar.Values.Add(i);
}
chart.Series.Add(bar);
nChartControl1.MouseClick += new MouseEventHandler(nChartControl1_MouseClick);
}
void nChartControl1_MouseClick(object sender, MouseEventArgs e)
{
NHitTestResult result = nChartControl1.HitTest(e.X, e.Y);
if (result.ChartElement == ChartElement.LegendDataItem)
{
int index = result.LegendDataItemIndex;
}
}
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