All docs
V20.2
20.2
20.1
The page you are viewing does not exist in version 20.1. This link will take you to the root page.
19.2
The page you are viewing does not exist in version 19.2. This link will take you to the root page.
19.1
The page you are viewing does not exist in version 19.1. This link will take you to the root page.
18.2
The page you are viewing does not exist in version 18.2. This link will take you to the root page.
18.1
The page you are viewing does not exist in version 18.1. This link will take you to the root page.
17.2
The page you are viewing does not exist in version 17.2. This link will take you to the root page.

SankeyDiagramControl.SourceDataMember Property

Specifies the name of a data member that contains source node labels.

Namespace: DevExpress.XtraCharts.Sankey

Assembly: DevExpress.XtraCharts.v20.2.UI.dll

Declaration

public string SourceDataMember { get; set; }
Public Property SourceDataMember As String

Property Value

Type Description
String

The name of a data source field that stores target node labels.

Remarks

Specify the DataSource property to bind a Sankey diagram to data. You can assign an object of a class that implements one of the following interfaces: IList, IListSource or IBindingList.

Then, define the names of data members that store data for source nodes, target nodes, and weights:

  • SourceDataMember - Specifies the name of a data member that contains data for source node labels.

  • TargetDataMember - Specifies the name of a data member that contains data for target node labels.

  • WeightDataMember (Optional) - Specifies the name of a data member that contains data for link weights. If unspecified, weights equal 1.

using System;
using System.Collections.Generic;
using System.Windows.Forms;
using DevExpress.XtraCharts.Sankey;
namespace SankeySample {
    public partial class Form1 : Form {
        public Form1() {
            InitializeComponent();
        }
        private void Form1_Load(object sender, EventArgs e) {
            sankeyDiagramControl1.DataSource = GetSankeyItems();
            sankeyDiagramControl1.SourceDataMember = "Source";
            sankeyDiagramControl1.TargetDataMember = "Target";            
            sankeyDiagramControl1.WeightDataMember = "Value";
            sankeyDiagramControl1.Titles.Add(new SankeyTitle { Text = "Export/Import" });
        }
        List<SankeyItem> GetSankeyItems() {
            List<SankeyItem> data = new List<SankeyItem> {
                new SankeyItem { Source = "France", Target = "UK", Value = 53 },
                new SankeyItem { Source = "Australia", Target = "UK", Value = 72 },
                new SankeyItem { Source = "France", Target = "Canada", Value = 81 },
                new SankeyItem { Source = "China", Target = "Canada", Value = 96 },
                new SankeyItem { Source = "UK", Target = "France", Value = 61 },
                new SankeyItem { Source = "Canada", Target = "France", Value = 89 },
            };
            return data;
        }
    }
    public class SankeyItem {
        public string Source { get; set; }
        public string Target { get; set; }
        public double Value { get; set; }
    }
}
See Also