Files to look at:
This example demonstrates how to demonstrate master-detail data in the same chart.
You can only use the Drill-Down functionality when chart series are generated by series templates.
- Use SeriesTemplate.ArgumentDrillTemplate to specify detail data when a user clicks an argument's axis label.
- Use SeriesTemplate.SeriesDrillTemplate to specify how the Chart Control displays detail data when a user clicks a series (or the series's marker in a legend).
- Use SeriesTemplate.SeriesPointDrillTemplate to specify detail data when a user clicks a series point.
Refer to the Drill Down article for more information.
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Example Code
Form1.cs(vb)
C#using DevExpress.Drawing;
using DevExpress.Utils;
using DevExpress.XtraCharts;
using DevExpress.XtraEditors;
using System.Collections.Generic;
using System.Drawing;
namespace DrillDownChart {
public partial class Form1 : XtraForm {
List<string> categories;
DXFont linkFont;
DXFont regularFont;
ChartControl chartControl { get { return chartControl1; } }
public Form1() {
InitializeComponent();
}
private void Form1_Load(object sender, System.EventArgs e) {
var keys = SaleItem.CategorizedProducts.Keys;
categories = new List<string>(keys.Count);
foreach (string category in SaleItem.CategorizedProducts.Keys)
categories.Add(category);
List<SaleItem> data = SaleItem.GetTotalIncome();
chartControl.DataSource = data;
chartControl.SeriesTemplate.SeriesDataMember = "Category";
chartControl.SeriesTemplate.ArgumentDataMember = "Company";
chartControl.SeriesTemplate.QualitativeSummaryOptions.SummaryFunction = "SUM([Income])";
chartControl.SeriesTemplate.View = new StackedBarSeriesView();
SeriesTemplate argumentDrillTemplate = new SeriesTemplate();
argumentDrillTemplate.SeriesDataMember = "Category";
argumentDrillTemplate.ArgumentDataMember = "OrderDate";
argumentDrillTemplate.View = new StackedAreaSeriesView();
argumentDrillTemplate.DateTimeSummaryOptions.MeasureUnit = DateTimeMeasureUnit.Month;
argumentDrillTemplate.DateTimeSummaryOptions.UseAxisMeasureUnit = false;
argumentDrillTemplate.DateTimeSummaryOptions.SummaryFunction = "SUM([Income])";
chartControl.SeriesTemplate.ArgumentDrillTemplate = argumentDrillTemplate;
SeriesTemplate seriesDrillTemplate = new SeriesTemplate();
seriesDrillTemplate.SeriesDataMember = "Product";
seriesDrillTemplate.ArgumentDataMember = "Company";
seriesDrillTemplate.QualitativeSummaryOptions.SummaryFunction = "SUM([Income])";
seriesDrillTemplate.View = new StackedBarSeriesView();
chartControl.SeriesTemplate.SeriesDrillTemplate = seriesDrillTemplate;
SeriesTemplate seriesPointDrillTemplate = new SeriesTemplate();
seriesPointDrillTemplate.SeriesDataMember = "Product";
seriesPointDrillTemplate.ArgumentDataMember = "OrderDate";
seriesPointDrillTemplate.DateTimeSummaryOptions.MeasureUnit = DateTimeMeasureUnit.Month;
seriesPointDrillTemplate.DateTimeSummaryOptions.UseAxisMeasureUnit = false;
seriesPointDrillTemplate.DateTimeSummaryOptions.SummaryFunction = "SUM([Income])";
seriesPointDrillTemplate.View = new StackedAreaSeriesView();
chartControl.SeriesTemplate.SeriesPointDrillTemplate = seriesPointDrillTemplate;
if (chartControl.Diagram is XYDiagram diagram) {
diagram.Rotated = true;
regularFont = diagram.AxisX.Label.DXFont;
linkFont = new DXFont(regularFont, DXFontStyle.Underline);
diagram.AxisX.Label.DXFont = linkFont;
}
chartControl.DrillDownStateChanged += chart_DrillDownStateChanged;
}
void chart_DrillDownStateChanged(object sender, DrillDownStateChangedEventArgs e) {
if (chartControl.Diagram is XYDiagram diagram && e.Series.Length > 0) {
if (e.Series[0].View is StackedBarSeriesView) {
chartControl.CrosshairEnabled = DefaultBoolean.False;
chartControl.ToolTipEnabled = DefaultBoolean.True;
diagram.Rotated = true;
diagram.AxisX.Label.DXFont = this.linkFont;
diagram.EnableAxisXScrolling = false;
diagram.EnableAxisXZooming = false;
}
else {
chartControl.CrosshairEnabled = DefaultBoolean.True;
chartControl.ToolTipEnabled = DefaultBoolean.False;
diagram.Rotated = false;
diagram.AxisX.Label.DXFont = this.regularFont;
diagram.EnableAxisXScrolling = true;
diagram.EnableAxisXZooming = true;
}
}
foreach (DrillDownItem item in e.States) {
if (item.Parameters.ContainsKey("Category")) {
chartControl.PaletteBaseColorNumber = categories.IndexOf(item.Parameters["Category"].ToString()) + 1;
return;
}
}
chartControl.PaletteBaseColorNumber = 0;
}
}
}