The palette and legend provide visual identification for node categories and styles used in the diagram.

The LegendItem property associates nodes with legend entries.

How LegendItem Works

• Automatic Node Coloring
  Nodes with the same LegendItem value automatically use the same color from the diagram palette.
• Legend Generation
  Each unique LegendItem value appears as a separate entry in the diagram legend.

Use Custom Palettes

FlexDiagram provides several built-in palettes. Custom palettes can also be assigned by using the Palette property.

Add LegendItem Example

var node1 = new Node() { Text = "Node 1", LegendItem = "Group 1" };
var node2 = new Node() { Text = "Node 2", LegendItem = "Group 1" };
var node3 = new Node() { Text = "Node 3", LegendItem = "Group 2" };
var node4 = new Node() { Text = "Node 4", LegendItem = "Group 2" };
diagram.Nodes.Add(node1);
diagram.Nodes.Add(node2);
diagram.Nodes.Add(node3);
diagram.Nodes.Add(node4);