void lbPosition_SelectedIndexChanged(object sender, RoutedEventArgs e)
{
if (chart != null)
{
PieSeries.SetLabelPosition(Series.Label, (PieLabelPosition)lbPosition.SelectedItem);
}
}
public static ChartControl CreatPieChart(SolidColorBrush forecolor, string ChartTitle, List <ChartDataChartCommonData> dtchart)
{
mausac = 0;
ChartControl abc = new ChartControl();
SimpleDiagram2D dg1 = new SimpleDiagram2D();
//liabc.Titles.Clear();
//Tao Tile cho Chart
Title nt = new Title();
nt.Content = ChartTitle;
nt.Foreground = forecolor;
abc.Titles.Add(nt);
//Tinh so Series
List <string> countsr = (from p in dtchart group p by p.Series into g select g.Key).ToList();
//Creat Diagram
abc.Diagram = dg1;
GridControl dtl = new GridControl();
for (int i = 0; i < countsr.Count; i++)
{
PieSeries2D dgs1 = new PieSeries2D();
dgs1.HoleRadiusPercent = 0; //Thiet lap khoang trong tu tam hinh tron den duong tron
dgs1.ArgumentScaleType = ScaleType.Auto;
foreach (ChartDataChartCommonData dr in dtchart) //Tao cac point
{
if (dr.Series == countsr.ElementAt(i))
{
//Tao Series
SeriesPoint sr1 = new SeriesPoint();
sr1.Argument = dr.Agrument + ":" + dr.Value.ToString();
sr1.Value = dr.Value;
sr1.Tag = mausac.ToString();
dgs1.Points.Add(sr1);
mausac++;
}
}
dgs1.Label = new SeriesLabel();//Tao Label cho Diagram
PieSeries.SetLabelPosition(dgs1.Label, PieLabelPosition.TwoColumns);
dgs1.Label.RenderMode = LabelRenderMode.RectangleConnectedToCenter;
dgs1.LabelsVisibility = true;//Hien thi Lablel cho tung vung
PointOptions pn1 = new PointOptions();
pn1.PointView = PointView.ArgumentAndValues;
pn1.Pattern = "{A} ({V})"; //Tao mau chu thich
NumericOptions nbm1 = new NumericOptions(); //Tao Kieu hien thi
nbm1.Format = NumericFormat.Percent;
pn1.ValueNumericOptions = nbm1;
PieSeries2D.SetPercentOptions(pn1, new PercentOptions()
{
ValueAsPercent = true, PercentageAccuracy = 5
}); //Quy dinh ty le phan tram chinh xac
dgs1.PointOptions = pn1;
dg1.Series.Add(dgs1);
//Tao chu thich
dgs1.LegendPointOptions = pn1;
}
abc.Legend = new Legend();
//End tao chu thich
//Set mau sac cho seriespont
abc.CustomDrawSeriesPoint += abc_CustomDrawSeriesPoint;
return(abc);
}