SeriesBase.ColorDataMember Property
Gets or sets the data source field name that contains series point colors.
Namespace: DevExpress.XtraCharts
Assembly: DevExpress.XtraCharts.v23.2.dll
NuGet Package: DevExpress.Charts
Declaration
[XtraChartsLocalizableCategory(XtraChartsCategory.Data)]
public string ColorDataMember { get; set; }Property Value
| Type | Description |
|---|---|
| String | The data source field name that contains series point colors. |
Remarks
Series Point Colorizers define colors based on values that the ColorDataMember contains. A colorizer determines how to process the ColorDataMember values:
- ColorObjectColorizer sets color data member values to the SeriesPoint.Color property.
- KeyColorColorizer allows you to select the color based on
ColorDataMembervalues used as key values. - RangeColorizer allows you to specify value ranges that are colored with the same color.
When the Chart Control aggregates series data, the aggregated point has the color that mostly occurs within the aggregated interval.
Example
To configure and use the Key-Color colorizer, perform the following steps.
Create a KeyColorColorizer object and assign it to the SeriesViewBase.Colorizer property.
Populate the KeyColorColorizer.Keys collection.
Specify the ChartPaletteColorizerBase.Palette property if you want to use a non-default palette to colorize your data.
using System;
using System.Collections.Generic;
using System.Windows.Forms;
using System.Xml.Linq;
using DevExpress.XtraCharts;
namespace KeyColorColorizerExample {
public partial class Form1 : Form {
const string filepath = "..//..//Data//GDP.xml";
public Form1() {
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e) {
#region #BarSeries
// Create and customize a bar series.
Series barSeries = new Series() {
DataSource = LoadData(filepath),
ArgumentDataMember = "Country",
ColorDataMember = "Region",
View = new SideBySideBarSeriesView()
};
barSeries.View.Colorizer = CreateColorizer();
barSeries.ValueDataMembers.AddRange(new string[] { "Product" });
#endregion #BarSeries
// Add the series to the ChartControl's Series collection.
chartControl1.Series.Add(barSeries);
// Show a title for the values axis.
((XYDiagram)chartControl1.Diagram).AxisY.Title.Text = "GDP per capita, $";
((XYDiagram)chartControl1.Diagram).AxisY.Title.Visibility = DevExpress.Utils.DefaultBoolean.True;
}
#region #KeyColorColorier
// Creates the Key-Color colorizer for the bar chart.
ChartColorizerBase CreateColorizer() {
KeyColorColorizer colorizer = new KeyColorColorizer() {
PaletteName = "Apex"
};
colorizer.Keys.Add("Africa");
colorizer.Keys.Add("America");
colorizer.Keys.Add("Asia");
colorizer.Keys.Add("Australia");
colorizer.Keys.Add("Europe");
return colorizer;
}
#endregion #KeyColorColorier
#region #DataLoad
class HpiPoint {
public string Country { get; set; }
public double Product { get; set; }
public string Region { get; set; }
}
// Loads data from an XML data source.
static List<HpiPoint> LoadData(string filepath) {
XDocument doc = XDocument.Load(filepath);
List<HpiPoint> points = new List<HpiPoint>();
foreach (XElement element in doc.Element("G20HPIs").Elements("CountryStatistics")) {
points.Add(new HpiPoint() {
Country = element.Element("Country").Value,
Product = Convert.ToDouble(element.Element("Product").Value),
Region = element.Element("Region").Value
});
}
return points;
}
#endregion #DataLoad
}
}
<?xml version="1.0" encoding="utf-8" ?>
<G20HPIs>
<CountryStatistics>
<Country>Argentina</Country>
<Region>America</Region>
<Product>16011.6728032264</Product>
</CountryStatistics>
<CountryStatistics>
<Country>Australia</Country>
<Region>Australia</Region>
<Product>38159.6336533223</Product>
</CountryStatistics>
<CountryStatistics>
<Country>Brazil</Country>
<Region>America</Region>
<Product>11210.3908053823</Product>
</CountryStatistics>
<CountryStatistics>
<Country>Canada</Country>
<Region>America</Region>
<Product>39050.1673163719</Product>
</CountryStatistics>
<CountryStatistics>
<Country>China</Country>
<Region>Asia</Region>
<Product>7599</Product>
</CountryStatistics>
<CountryStatistics>
<Country>France</Country>
<Region>Europe</Region>
<Product>34123.1966249035</Product>
</CountryStatistics>
<CountryStatistics>
<Country>Germany</Country>
<Region>Europe</Region>
<Product>37402.2677660974</Product>
</CountryStatistics>
<CountryStatistics>
<Country>India</Country>
<Region>Asia</Region>
<Product>3425.4489267524</Product>
</CountryStatistics>
<CountryStatistics>
<Country>Indonesia</Country>
<Region>Asia</Region>
<Product>4325.2533282173</Product>
</CountryStatistics>
<CountryStatistics>
<Country>Italy</Country>
<Region>Europe</Region>
<Product>31954.1751781228</Product>
</CountryStatistics>
<CountryStatistics>
<Country>Japan</Country>
<Region>Asia</Region>
<Product>33732.8682226596</Product>
</CountryStatistics>
<CountryStatistics>
<Country>Mexico</Country>
<Region>America</Region>
<Product>14563.884253986</Product>
</CountryStatistics>
<CountryStatistics>
<Country>Russia</Country>
<Region>Europe</Region>
<Product>19891.3528339013</Product>
</CountryStatistics>
<CountryStatistics>
<Country>Saudi Arabia</Country>
<Region>Asia</Region>
<Product>22713.4852913284</Product>
</CountryStatistics>
<CountryStatistics>
<Country>South Africa</Country>
<Region>Africa</Region>
<Product>10565.1840563081</Product>
</CountryStatistics>
<CountryStatistics>
<Country>South Korea</Country>
<Region>Asia</Region>
<Product>29101.0711400706</Product>
</CountryStatistics>
<CountryStatistics>
<Country>Turkey</Country>
<Region>Africa</Region>
<Product>15686.860167575</Product>
</CountryStatistics>
<CountryStatistics>
<Country>United Kingdom</Country>
<Region>Europe</Region>
<Product>35686.1997705521</Product>
</CountryStatistics>
<CountryStatistics>
<Country>Spain</Country>
<Region>Europe</Region>
<Product>32230.3585974199</Product>
</CountryStatistics>
<CountryStatistics>
<Country>USA</Country>
<Region>America</Region>
<Product>47153.0094273427</Product>
</CountryStatistics>
</G20HPIs>
Related GitHub Examples
The following code snippets (auto-collected from DevExpress Examples) contain references to the ColorDataMember property.
Note
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