Class RelationShip

Represents a UML relationship connector between classifiers.

Inheritance
object
DiagramObject
ConnectorShape
RelationShip
Implements
Inherited Members
Namespace: Syncfusion.Blazor.Diagram
Assembly: Syncfusion.Blazor.Diagram.dll
Syntax
public class RelationShip : ConnectorShape, IDiagramObject, ICloneable
Remarks

Defines the relationship type (e.g., association, inheritance), directionality, and optional multiplicity annotations at both ends.

Examples
Connector connector = new Connector()
{
    ID = "rel1",
    SourceID = "class1",
    TargetID = "class2",
    Shape = new RelationShip()
    {
        RelationshipShape = Relationship.Aggregation,
        AssociationType = AssociationFlow.BiDirectional,
        Multiplicity = new ClassifierMultiplicity()
        {
            Source = new MultiplicityLabel { LowerBounds = "1", UpperBounds = "1" },
            Target = new MultiplicityLabel { LowerBounds = "0", UpperBounds = "*" }
        }
    }
};

Constructors

RelationShip()

Initializes a new instance of RelationShip.

Declaration
public RelationShip()

RelationShip(RelationShip)

Initializes a new instance of RelationShip copied from src.

Declaration
public RelationShip(RelationShip src)
Parameters
Type Name Description
RelationShip src

Properties

AssociationType

Gets or sets the directionality of an association relationship.

Declaration
[JsonPropertyName("associationType")]
public AssociationFlow? AssociationType { get; set; }
Property Value
Type Description
AssociationFlow?

A AssociationFlow representing the association direction.
Remarks

Applicable only when RelationshipShape is Association.

It controls whether the association is unidirectional or bidirectional.

Examples

This example demonstrates creating a bidirectional association:

connectors.Add(new Connector()
{
    SourcePoint = new DiagramPoint() { X = 150, Y = 250 },
    TargetPoint = new DiagramPoint() { X = 350, Y = 250 },
    Type = ConnectorSegmentType.Straight,
    Shape = new RelationShip()
    {
        RelationshipShape = Relationship.Association,
        AssociationType = AssociationFlow.BiDirectional
    }
});

Multiplicity

Gets or sets the multiplicity configuration for the relationship.

Declaration
[JsonPropertyName("multiplicity")]
public ClassifierMultiplicity? Multiplicity { get; set; }
Property Value
Type Description
ClassifierMultiplicity

A ClassifierMultiplicity representing source and target cardinality. When null, no multiplicity labels are displayed.
Remarks

Defines the cardinality at both source and target ends using labels such as "1", "0..*", etc. If null, no multiplicity labels are displayed.

Examples

This example demonstrates applying multiplicity to a connector:

DiagramObjectCollection<Connector> connectors = new DiagramObjectCollection<Connector>();

connectors.Add(new Connector()
{
    ID = "connector3",
    SourcePoint = new DiagramPoint() { X = 200, Y = 300 },
    TargetPoint = new DiagramPoint() { X = 400, Y = 300 },
    Type = ConnectorSegmentType.Straight,
    Shape = new RelationShip()
    {
        RelationshipShape = Relationship.Dependency,
        Multiplicity = new ClassifierMultiplicity()
        {
            Source = new MultiplicityLabel() { LowerBounds = "1", UpperBounds = "*" },
            Target = new MultiplicityLabel() { LowerBounds = "0", UpperBounds = "1" }
        }
    }
});

RelationshipShape

Gets or sets the UML relationship type.

Declaration
[JsonPropertyName("relationshipShape")]
public Relationship RelationshipShape { get; set; }
Property Value
Type Description
Relationship

A Relationship representing the type of UML relationship. The default value is Aggregation.
Remarks

Determines the connectors visual style and associated decorators, such as:

  • Association (line)
  • Aggregation (hollow diamond)
  • Composition (filled diamond)
  • Inheritance (triangle arrow)
  • Dependency (dashed arrow)
Examples

This example demonstrates creating a connector with an aggregation relationship:

connectors.Add(new Connector()
{
    SourcePoint = new DiagramPoint() { X = 100, Y = 200 },
    TargetPoint = new DiagramPoint() { X = 300, Y = 200 },
    Type = ConnectorSegmentType.Straight,
    Shape = new RelationShip()
    {
        RelationshipShape = Relationship.Aggregation
    }
});

Methods

Clone()

Creates a new object that is a copy of the current RelationShip.

Declaration
public override object Clone()
Returns
Type
object
Overrides

Implements