Hi,

Item properties that do not have corresponding default-value properties in the FlowChart class can be set from the Initialize[Box/Arrow/Table] events.

Another possibility is to keep some prototype objects initialized with the default values you need, and use your own Behavior class. From the Behavior.StartDraw method return new items initialized from the prototypes using the respective copy constructor. Currently the standard Behavior classes initialize new items using the

Box(FlowChart parent)
Arrow(FlowChart parent)
Table(FlowChart parent)

constructors, which copy the attribute values from the FlowChart. Instead them, try using the

Box(Box prototype)
Arrow(Arrow prototype)
Table(Table prototype)

constructors.

I hope that helps,
Stoyan

It seems you cannot have null source and destination, so try if that will work with the  DummyNode class -

new Arrow(prototypeArrow, new DummyNode(), new DummyNode());

The DummyNode objects are what you get as a source and/or destination when you draw unconnected arrows. In this case, they should be replaced with the real nodes once the arrow creation comlpetes.

Stoyan

It doesn't work, here is my "StartDraw" overrides behavior methode :

Public Overrides Function StartDraw(ByVal point As System.Drawing.PointF) As MindFusion.Diagramming.WinForms.InteractionState

	  Dim Node As MindFusion.Diagramming.WinForms.Node = FlowChart.GetNodeAt(point, True, False)

	  If Node IsNot Nothing Then

		Dim FlowChartObject As MindFusion.Diagramming.WinForms.ChartObject = FlowChart.GetObjectAt(point, False)

		If FlowChartObject IsNot Nothing AndAlso FlowChartObject.Selected Then
		    Return New MindFusion.Diagramming.WinForms.InteractionState(FlowChartObject, 8, MindFusion.Diagramming.WinForms.Action.Modify)
		Else
		    'Me.DefaultArrow.ControlPoints.Clear()
		    'Return New MindFusion.Diagramming.WinForms.InteractionState(Me._Default_Arrow, -1, MindFusion.Diagramming.WinForms.Action.Create)
		    Try

			  Dim ArrowTest As New Arrow(FlowChart, Node)

			  Dim ArrowTest1 As New Arrow(Me.DefaultArrow, Node, New DummyNode(Me.FlowChart))
			  Dim ArrowTest2 As New Arrow(Me.DefaultArrow, Node, New DummyNode(Me.FlowChart))
			  'ArrowTest2.Destination = Nothing
			  ArrowTest2.ControlPoints.Clear()
			  ArrowTest2.ControlPoints.Add(New System.Drawing.PointF(0, 0))
			  ArrowTest2.ControlPoints.Add(New System.Drawing.PointF(0, 0))

			  Return New MindFusion.Diagramming.WinForms.InteractionState(ArrowTest, -1, MindFusion.Diagramming.WinForms.Action.Create)

		    Catch ex As Exception
			  MsgBox(ex.StackTrace)
			  Return Nothing
		    End Try

		End If


	  Else
		Dim Table As New MindFusion.Diagramming.WinForms.Table(FlowChart)
		Return New MindFusion.Diagramming.WinForms.InteractionState(Table, -1, MindFusion.Diagramming.WinForms.Action.Create)
	  End If

    End Function 

Node is the variable wich represent the node under the mouse
ArrowTest is an Arrow I want to create whose work fine
ArrowTest1 and ArrowTest2 are Arrows I want to create whose doesn't work
So I'll try to fine the difference between ArrowTest and ArrowTest1 & 2 with Debugging spy

ArrowTest.Destination = nothing
ArrowTest.Destination <> nothing

How can I set my arrow destination property to nothing; i'll try ArrowTest.Destination = nothing
but it doesn't work.