DiagramQueryConnectionPointsEventArgs.ItemConnectionBorderState Property

Specifies whether to enable connection to an item and show a visual indication.

Namespace: DevExpress.Xpf.Diagram

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

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

Declaration

C#

public ConnectionElementState ItemConnectionBorderState { get; set; }

VB.NET

Public Property ItemConnectionBorderState As ConnectionElementState

Property Value

Type	Description
ConnectionElementState	A ConnectionElementState enumeration value.

Available values:

Name	Description
Visible	Connection is enabled.
Hidden	Connection is disabled with no visual indication.
Disabled	Connection is disabled. Visual indication (red border around an item/connector) is shown.

Remarks

The DiagramQueryConnectionPointsEventArgs.HoveredItem property returns the item hovered with the connection point that is being moved by the end-user.

Set the ItemConnectionBorderState property to either ConnectionElementState.Hidden or ConnectionElementState.Disabled to prevent the end-user from connecting to an item.

Use the DiagramQueryConnectionPointsEventArgs.ItemConnectionPointStates property to specify whether to enable connection to individual connection points and show a visual indication.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the ItemConnectionBorderState 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-create-a-diagram-item-with-labeled-input-and-output-points/CS/InputOutputShapes/MainWindow.xaml.cs#L49

{
    e.ItemConnectionBorderState = ConnectionElementState.Hidden;
    if (e.ConnectorPointType == ConnectorPointType.Begin)

VB.NET

How-to-create-a-diagram-item-with-labeled-input-and-output-points/VB/InputOutputShapes/MainWindow.xaml.vb#L44

If String.Equals(shape.Tag, "input") Then
    e.ItemConnectionBorderState = ConnectionElementState.Hidden
    If e.ConnectorPointType = ConnectorPointType.Begin Then