BPMN Data Object in Blazor Diagram Component

28 Dec 20213 minutes to read

A data object represents information flowing through the process, such as data placed into the process, data resulting from the process, data that needs to be collected, or data that must be stored. To define a DataObject, set the shape to DataObject and the type property defines whether data is an input or output. You can create multiple instances of data object with the collection property of data.

@using Syncfusion.Blazor.Diagram

@* Initialize the Diagram*@
<SfDiagramComponent Height="600px" Nodes="@nodes" />

    // Initialize the node collection with node.
    DiagramObjectCollection<Node> nodes;

    protected override void OnInitialized()
        nodes = new DiagramObjectCollection<Node>();
        Node node = new Node()
            // Position of the node.
            OffsetX = 100,
            OffsetY = 100,
            // Size of the node.
            Width = 100,
            Height = 100,
            // Unique Id of the node.
            ID = "node1",
            // Sets type to Bpmn and shape to DataObject.
            Shape = new BpmnShape()
                Type = Shapes.Bpmn,
                Shape = BpmnShapes.DataObject,
                // Sets collection to true when Dataobject is not a Single instance.
                DataObject = new BpmnDataObject()
                    Collection = true,
                    Type = BpmnDataObjects.Input

The following table contains various representation of the BPMN data object.

Boundary Image
Collection Data Object Collection Data BPMN Shape
Data Input Data Input BPMN Shape
Data Output Data Output BPMN Shape