Class DiagramConnectorConnectionChangedEventArgs

Provides data for ConnectionChanged: a Connector's source or target endpoint just finished attaching to, detaching from, or being re-routed between nodes/ports in the WebView (EJ2's connectionChange event, "Changed" state).

Inheritance
System.Object
DiagramConnectorConnectionChangedEventArgs
Namespace: Syncfusion.Maui.Diagram
Assembly: Syncfusion.Maui.Diagram.dll
Syntax
public sealed class DiagramConnectorConnectionChangedEventArgs : EventArgs
Remarks

"old" properties are captured from Connector's own state on the managed side immediately before the new values are applied — EJ2's connectionChange callback reports the connector itself in args.oldValue/args.newValue (references to EJ2's live objects, not snapshots), so by the time the C# side sees them they already reflect the new state. The bridge therefore reads the managed Connector directly. See Managers.DiagramManager.OnBridgeConnectorConnectionChanged for the apply order that makes the old/new pairs meaningful.

Properties

Cause

Gets EJ2's cause string for this connection change (typical values include "Connect", "Disconnect", "Reconnect", "CzReroute"; exact set depends on which internal call site of the underlying EJ2 tool raised the event). null when the host page didn't forward a cause (for example, a payload from an older session that predates this field, or a programmatic apply with no gesture).

Declaration
public string Cause { get; }
Property Value
Type
System.String

Connector

Gets the connector whose connection changed. Its endpoints already equal NewSourceID/NewTargetID.

Declaration
public Connector Connector { get; }
Property Value
Type
Connector

NewSourceID

Gets the connector's SourceID after this change (null if it is now a floating point).

Declaration
public string NewSourceID { get; }
Property Value
Type
System.String

NewSourcePoint

Gets the connector's SourcePoint after this change.

Declaration
public Nullable<Point> NewSourcePoint { get; }
Property Value
Type
System.Nullable<Microsoft.Maui.Graphics.Point>

NewSourcePortID

Gets the connector's SourcePortID after this change.

Declaration
public string NewSourcePortID { get; }
Property Value
Type
System.String

NewTargetID

Gets the connector's TargetID after this change (null if it is now a floating point).

Declaration
public string NewTargetID { get; }
Property Value
Type
System.String

NewTargetPoint

Gets the connector's TargetPoint after this change.

Declaration
public Nullable<Point> NewTargetPoint { get; }
Property Value
Type
System.Nullable<Microsoft.Maui.Graphics.Point>

NewTargetPortID

Gets the connector's TargetPortID after this change.

Declaration
public string NewTargetPortID { get; }
Property Value
Type
System.String

OldSourceID

Gets the connector's SourceID before this change (or null if it was a floating point).

Declaration
public string OldSourceID { get; }
Property Value
Type
System.String

OldSourcePoint

Gets the connector's SourcePoint before this change (set when OldSourceID was null).

Declaration
public Nullable<Point> OldSourcePoint { get; }
Property Value
Type
System.Nullable<Microsoft.Maui.Graphics.Point>

OldSourcePortID

Gets the connector's SourcePortID before this change.

Declaration
public string OldSourcePortID { get; }
Property Value
Type
System.String

OldTargetID

Gets the connector's TargetID before this change (or null if it was a floating point).

Declaration
public string OldTargetID { get; }
Property Value
Type
System.String

OldTargetPoint

Gets the connector's TargetPoint before this change (set when OldTargetID was null).

Declaration
public Nullable<Point> OldTargetPoint { get; }
Property Value
Type
System.Nullable<Microsoft.Maui.Graphics.Point>

OldTargetPortID

Gets the connector's TargetPortID before this change.

Declaration
public string OldTargetPortID { get; }
Property Value
Type
System.String