private void ExplodePieSegment(NStateObject state, EventArgs e, int offset)
{
// this method is called when the web control operates in the Nevron Instant Callback mode
NCallbackMouseEventArgs args = e as NCallbackMouseEventArgs;
NChartSessionStateObject chartState = state as NChartSessionStateObject;
NHitTestResult result = chartState.HitTest(args);
NRootPanel rootPanel = chartState.Document.RootPanel;
if (result.ChartElement == ChartElement.DataPoint)
{
NPieSeries pieSeries = result.Series as NPieSeries;
pieSeries.Detachments.Clear();
for (int i = 0; i < pieSeries.Values.Count; i++)
{
if (i == result.DataPointIndex)
{
pieSeries.Detachments.Add(offset);
}
else
{
pieSeries.Detachments.Add(0);
}
}
}
}
private void ColorPieSegment(NStateObject state, EventArgs e, Color c)
{
NCallbackMouseEventArgs args = e as NCallbackMouseEventArgs;
NChartSessionStateObject chartState = state as NChartSessionStateObject;
NHitTestResult result = chartState.HitTest(args);
NRootPanel rootPanel = chartState.Document.RootPanel;
if (result.ChartElement == ChartElement.DataPoint)
{
NPieSeries pieSeries = result.Series as NPieSeries;
for (int i = 0; i < pieSeries.Values.Count; i++)
{
if (i == result.DataPointIndex)
{
pieSeries.FillStyles[i] = new NColorFillStyle(c);
pieSeries.BorderStyles[i] = new NStrokeStyle(1, Color.White);
}
else
{
int colorIndex = i % NExampleUC.arrCustomColors2.Length;
Color color = NExampleUC.arrCustomColors2[colorIndex];
pieSeries.FillStyles[i] = new NColorFillStyle(color);
pieSeries.BorderStyles[i] = new NStrokeStyle(1, color);
}
}
}
}
private void ExplodePieSegment(NStateObject state, EventArgs e, int offset)
{
NCallbackMouseEventArgs args = e as NCallbackMouseEventArgs;
NChartSessionStateObject chartState = state as NChartSessionStateObject;
NHitTestResult result = chartState.HitTest(args);
if (result.ChartElement == ChartElement.DataPoint)
{
NPieSeries pieSeries = result.Series as NPieSeries;
pieSeries.Detachments.Clear();
for (int i = 0; i < pieSeries.Values.Count; i++)
{
if (i == result.DataPointIndex)
{
pieSeries.Detachments.Add(offset);
}
else
{
pieSeries.Detachments.Add(0);
}
}
}
}
private void ProcessMouseEvent(NStateObject state, EventArgs e, Color c)
{
NCallbackMouseEventArgs args = e as NCallbackMouseEventArgs;
NChartSessionStateObject chartState = state as NChartSessionStateObject;
NHitTestResult result = chartState.HitTest(args);
NRootPanel rootPanel = chartState.Document.RootPanel;
if (result.ChartElement == ChartElement.DataPoint)
{
switch (result.Chart.Tag.ToString())
{
case "BarChart":
NChartPalette palette = new NChartPalette(ChartPredefinedPalette.Nevron);
Color highlightColor = palette.SeriesColors[5];
NBarSeries barSeries = result.Series as NBarSeries;
foreach (NBarSeries series in rootPanel.Charts[0].Series)
{
series.FillStyles.Clear();
series.BorderStyles.Clear();
}
barSeries.FillStyles[result.DataPointIndex] = new NColorFillStyle(c);
barSeries.BorderStyles[result.DataPointIndex] = new NStrokeStyle(1, c);
int nCount = rootPanel.ChildPanels.Count;
for (int i = 0; i < nCount; i++)
{
if (rootPanel.ChildPanels[i] is NRoundedRectangularCallout)
{
rootPanel.ChildPanels.RemoveAt(i);
}
}
NRoundedRectangularCallout m_RoundedRectangularCallout = new NRoundedRectangularCallout();
m_RoundedRectangularCallout.ArrowLength = new NLength(10, NRelativeUnit.ParentPercentage);
m_RoundedRectangularCallout.FillStyle = new NGradientFillStyle(Color.FromArgb(255, Color.White), Color.FromArgb(125, highlightColor));
m_RoundedRectangularCallout.UseAutomaticSize = true;
m_RoundedRectangularCallout.Orientation = 45;
m_RoundedRectangularCallout.Anchor = new NDataPointAnchor(barSeries, result.DataPointIndex, ContentAlignment.TopRight, StringAlignment.Center);
m_RoundedRectangularCallout.Text = ((NDataPoint)result.Object)[DataPointValue.Y].ToString();
rootPanel.ChildPanels.Add(m_RoundedRectangularCallout);
break;
case "PieChart":
NPieSeries pieSeries = result.Series as NPieSeries;
pieSeries.Detachments.Clear();
for (int i = 0; i < pieSeries.Values.Count; i++)
{
if (i == result.DataPointIndex)
{
pieSeries.Detachments.Add(15);
}
else
{
pieSeries.Detachments.Add(0);
}
}
break;
}
}
}
