DiagramConnector.BeginItem Property

Gets or sets the start item for the connector. This is a dependency property.

Namespace: DevExpress.Xpf.Diagram

Assembly: DevExpress.Xpf.Diagram.v20.2.dll

NuGet Packages: DevExpress.WindowsDesktop.Wpf.Diagram, DevExpress.Wpf.Diagram

Declaration

C#

public IDiagramItem BeginItem { get; set; }

VB.NET

Public Property BeginItem As IDiagramItem

Property Value

Type	Description
DevExpress.Diagram.Core.IDiagramItem	The connector’s start item.

Remarks

You can “glue” a connector to one of predefined points (connection points) on a shape with the DiagramConnector.BeginItemPointIndex property. If this property is set to -1, the connection point will be determined automatically based on the connector’s direction.

Instead of linking a connector to a certain diagram item or its point, you can start the connector at any point within the diagram canvas. To accomplish this, set the BeginItem property to null and specify the start point with the DiagramConnector.BeginPoint property.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the BeginItem property.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

How-to-prohibit-addition-of-detached-connectors-to-our-WPF-Diagram-Control/CS/AttachedConnectors/MainWindow.xaml.cs#L37

    connector.EndPointRestrictions = ConnectorPointRestrictions.KeepConnected;
    e.Cancel = connector.BeginItem == null || connector.EndItem == null;
}

VB.NET

How-to-prohibit-addition-of-detached-connectors-to-our-WPF-Diagram-Control/VB/AttachedConnectors/MainWindow.xaml.vb#L34

    connector.EndPointRestrictions = ConnectorPointRestrictions.KeepConnected
    e.Cancel = connector.BeginItem Is Nothing OrElse connector.EndItem Is Nothing
End If