BPMN Shapes in Blazor Diagram Component

15 Dec 20222 minutes to read

BPMN(Business Process Model and Notation) shapes are used to represent the internal business procedure in a graphical notation and enable you to communicate the procedures in a standard manner. To create a BPMN shape, in the node property shape, type should be set to “Bpmn” and its shape should be set as any one of the built-in shapes.

The following code example explains how to create a simple business process.

@using Syncfusion.Blazor.Diagrams
@using System.Collections.ObjectModel

@* Initialize Diagram *@
<SfDiagram Height="600px" Nodes="@NodeCollection">

    //Defines diagram's node collection
    public ObservableCollection<DiagramNode> NodeCollection { get; set; }

    protected override void OnInitialized()
        NodeCollection = new ObservableCollection<DiagramNode>();
        DiagramNode node = new DiagramNode()
            // Position of the node
            OffsetX = 100,
            OffsetY = 100,
            // Size of the node
            Width = 100,
            Height = 100,
            // Unique Id of the node
            Id = "node1",
            Shape = new DiagramShape()
                //Sets type to Bpmn
                Type = Shapes.Bpmn


The default value for the property Shape is “event”.

The list of BPMN shapes are as follows:

Shape Image
Event Event Shape
Gateway Gateway Shape
Task Task Shape
Message Message Shape
DataSource Datasource Shape
DataObject Dataobject Shape
Group Group Shape