Hi Stoyan,

I've got 3 questions about the differences between MindFusion for WPF and WinForms.

Question 1:
In WPF I can override the Draw method of a custome-made node with the following code:

 public override void Draw(DrawingContext graphics, MindFusion.Diagramming.Wpf.RenderOptions options)
        {
            double totalHeight = Bounds.Height;
            double padding = 20;
            double ifHeight = Then_connected_node != null ? Then_connected_node.Bounds.Height : 0;
            double elseHeight = Else_connected_node != null ? Else_connected_node.Bounds.Height : 0;

            // Then-part and Else-part are null
            if (ifHeight == 0 && elseHeight == 0)
            {
                ifHeight = elseHeight = (totalHeight - 3 * padding) / 2;
            }
            // Only Then-part is null
            else if (ifHeight == 0)
            {
                ifHeight = totalHeight - elseHeight - 3 * padding;
            }
            // Only Else-part is null
            else if (elseHeight == 0)
            {
                elseHeight = totalHeight - ifHeight - 3 * padding;
            }

            var shape = new PathGeometry();
            shape.Figures.Add(new PathFigure(new Point(), new[]
            {
                new LineSegment(new Point(5, 0), true),

                new LineSegment(new Point(10, -7), true),
                new LineSegment(new Point(15, 0), true),

			    new LineSegment(new Point(Bounds.Width, 0), true),
			    new LineSegment(new Point(Bounds.Width, padding), true),
                new LineSegment(new Point(35, padding), true),

                new LineSegment(new Point(30, padding-7), true),
                new LineSegment(new Point(25, padding), true),

			    new LineSegment(new Point(padding, padding), true),
			    new LineSegment(new Point(padding, padding + ifHeight), true),
			    new LineSegment(new Point(Bounds.Width, padding + ifHeight), true),
			    new LineSegment(new Point(Bounds.Width, Bounds.Height - padding - elseHeight), true),
                new LineSegment(new Point(35, Bounds.Height - padding - elseHeight), true),

                new LineSegment(new Point(30, Bounds.Height - padding - elseHeight - 7), true),
                new LineSegment(new Point(25, Bounds.Height - padding - elseHeight), true),

			    new LineSegment(new Point(padding, Bounds.Height - padding - elseHeight), true),
			    new LineSegment(new Point(padding, Bounds.Height - padding), true),
			    new LineSegment(new Point(Bounds.Width, Bounds.Height - padding), true),
			    new LineSegment(new Point(Bounds.Width, Bounds.Height), true),
                new LineSegment(new Point(15, Bounds.Height), true),

                new LineSegment(new Point(10, Bounds.Height-7), true),
                new LineSegment(new Point(5, Bounds.Height), true),

			    new LineSegment(new Point(0, Bounds.Height), true),
			    new LineSegment(new Point(0, 0), true),
		    }, true));

            graphics.DrawGeometry(Brush, new Pen(Stroke, StrokeThickness), shape);
        }
 

Is it possible to achieve the exact same in WinForms? I tried to paste the same code in a WinForms project but it doesn't seem to recognize the PathGeometry class.

Question 2:
In WPF there is a property in the Diagram class called ModificationEffect. If I set this property to ModificationEffect.MoveShades I would get a preview when moving a node in the diagram. Is there a similar property in WinForms?

Question 3:

With the code below I can drag and drop Nodes to a Diagramfield from a NodeListView and while I do this I get a preview under my cursor. Is this possible with WinForms as well ?

    private DiagramNode dragIndicator = null;
        public InteractionState dragInteraction = null;

        // The three functions OnDiagramDragEnter, OnDiagramDragOver, OnNodeCreatedmethode are used
        // to be able to have a dragpreview.

        // This method is called when the cursor enters the corresponding window
        private void OnDiagramDragEnter(object sender, DragEventArgs e)
        {
            // The if statement checks if dragIndicator is empty and if there is a dragNode present
            if (dragIndicator == null && e.Data.GetDataPresent(typeof(DraggedNode)))
            {
                this.ModificationEffect = ModificationEffect.None;
                // var data gets present node that is dragable
                // var position gets the current position of the node that can be dragged
                var data = (DraggedNode)e.Data.GetData(typeof(DraggedNode));
                var position = e.GetPosition(this.DocumentPlane);

                // Make a Copy of the current node, its on 'false' cause its not getting use by the clipboard
                dragIndicator = (DiagramNode)data.Node.Clone(false);
                dragIndicator.Move(position.X, position.Y); // Keeps track of the position

                dragInteraction = new InteractionState(dragIndicator, 8, MindFusion.Diagramming.Wpf.Action.Modify);
                dragInteraction.Start(position, this);

                dragIndicator.Opacity = 0.5; // Changes the opacity of the node so that it looks transparent
                this.Nodes.Add(dragIndicator); // Node is being added to the diagram - this = the diagram
                e.Effects = DragDropEffects.Copy;
                e.Handled = true;
            }
        }

        // This method is called when the cursor moves inside the cursor moves inside the corresponding window
        public void OnDiagramDragOver(object sender, DragEventArgs e)
        {
            // Checks whether the dragindicator is filled with the data of the node that is being dragged
            if (dragIndicator != null)
            {
                var position = e.GetPosition(this.DocumentPlane);

                dragInteraction.Update(position, this);
                //dragIndicator.Move(position.X, position.Y);
                e.Effects = DragDropEffects.Copy;
                e.Handled = true;
            }
        }

        // Removes the contents of the dragIndicator, so it can be use again if
        private void OnNodeCreated(object sender, NodeEventArgs e)
        {
            if (dragIndicator != null)
            {
                this.ModificationEffect = ModificationEffect.MoveShades;
                e.Node.Bounds = dragIndicator.Bounds;
                this.Nodes.Remove(dragIndicator);
                dragIndicator = null;
                BR_Shape.lastInflatedNode = null;
            }
        }

  

Greets,

Vincent

Ah ok, thanks!! 

Greets,

Vincent