Thanks Stoyan.

1) I will modify the IComparer.Compare operation and try it out.

2) NodeModified event worked. Thanks.

3) Understood. Thank you.

4) I tried adding the code diagram.UndoManager.UndoEnabled = true; to the constructor. I also added 2 buttons for performing Undo and Redo operation. The Undo button has the following code,
diagram.UndoManager.Undo();
and the Redo button has the following code,
diagram.UndoManager.Redo();

The Undo and Redo seems to be malfunctioning. When undo operation is performed it introduces new nodes and makes the diagram a junk.

5) Also Drawing.Behavior = Behavior.DrawLink doesn't work. Is there anything else we need to set to enable manual drawing of the links. I need the ability that my diagram should be capable of drawing links manually as well as through code behind.

6) Can we use a CustomControl as well as a ShapeNode in the same diagram. My requirement is that i will have few Custom Controls in my diagram and i also need a IfElse which is already available in the ShapeNode.

Please help on these items.

Thanks Stoyan,

I am not creating any temporary nodes, i just have 3 buttons (in my toolbox) each for Activity(Shape node), WorkFlow(Shape node) and Ifelse(Shape node). On click of the buttons, i just insert the node above the stop node. Here i have used the function CreateActivity from the sample WorkFlowDesigner. After this if i try to do undo, i expect the 3rd node which is recently created to disappear, but strange things happen. ???

ControlNodes?, is it a node type. How to use it? Do you have any samples for it.

Please help.

Sent you the sample Project which i was working on. you will receive an email from Surendra@eagle-india.com.

Sorry, it's called ControlNode in the WinForms version. In WPF you can directly add a control to the diagram.Nodes collection - this creates a DiagramNodeAdapter behind the scenes. Or you might explicitly create a DiagramNodeAdapter that hosts the control and add it to the Nodes collection.

Quote:


The standard ShapeNode class has only one Image property. You have a few options:

- derive ShapeNode to add Image2 property, and override the Draw method to render Image2.
- use standard ShapeNodes with custom drawing, i.e. with their CustomDraw property is set to Additional, and the DrawNode event handler renders the additional image.
- use TableNodes (each cell can display an image) or a custom control wrapped in DiagramNodeAdapter.
- use an attached ShapeNode to display the additional image. If you set Transparent = true, only the image will be visible and not the node geometry.

Quote:


You could use the AttachTo method to attach the additional nodes to the IfElse node; then if the user moves the IfElse, the atatched images will move too. Selecting any of the child nodes won't select the whole group, but you could implement it with some event handling by selecting the nodes accessible through node.MasterGroup or node.SubordinateGroup.

I hope that helps,
Stoyan

Set CellFrameStyle = None to hide the border lines and assign to table[col, row].Image to set the images.

I hope that helps,
Stoyan

Try setting CaptionHeight = 0 and handling the CellClicked event.