private void barChart_CustomDrawSeriesPoint(object sender, CustomDrawSeriesPointEventArgs e)
{
BarDrawOptions barOptions = e.SeriesDrawOptions as BarDrawOptions;
int colorIndex = (int)e.SeriesPoint.Tag;
barOptions.Color = paletteEntries[colorIndex].Color;
}
private void OnCustomDrawSeries(object sender, CustomDrawSeriesEventArgs e)
{
bool isSelected = e.Series.Name.Equals(trackedSeriesName);
// Design a series marker image.
Bitmap image = new Bitmap(totalWidth, totalHeight);
using (Graphics graphics = Graphics.FromImage(image)) {
using (var fillBrush = isSelected ? (Brush) new HatchBrush(HatchStyle.DarkDownwardDiagonal,
e.LegendDrawOptions.Color,
e.LegendDrawOptions.ActualColor2)
: (Brush) new SolidBrush(e.LegendDrawOptions.Color)) {
graphics.FillRectangle(fillBrush, totalRect);
}
Image photo;
if (photoCache.TryGetValue(e.Series.Name, out photo))
{
graphics.DrawImage(photo, photoRect);
}
}
e.LegendMarkerImage = image;
e.DisposeLegendMarkerImage = true;
BarDrawOptions options = e.SeriesDrawOptions as BarDrawOptions;
if (options != null && isSelected)
{
options.FillStyle.FillMode = DevExpress.XtraCharts.FillMode.Hatch;
((HatchFillOptions)options.FillStyle.Options).HatchStyle = HatchStyle.DarkDownwardDiagonal;
}
}
private void chartControl1_CustomDrawSeriesPoint(object sender, DevExpress.XtraCharts.CustomDrawSeriesPointEventArgs e)
{
BarDrawOptions drawOptions = e.SeriesDrawOptions as BarDrawOptions;
if (drawOptions == null)
{
return;
}
double val = e.SeriesPoint[0];
if (val < 100)
{
drawOptions.Color = Color.Red;
}
else
{
drawOptions.Color = Color.LimeGreen;
}
}
public static void UpdateDrawOptions(BarDrawOptions options)
{
options.FillStyle.FillMode = FillMode.Hatch;
options.Shadow.Color = Color.Azure;
}
