Hi,

If you need to know the size of the diagram control on screen to center that default node, you should handle the UserControl.Loaded event. It occurs when the element is laid out and rendered. To center a node on screen, you probably have to check the size of the diagram's parent control (ScrollViewer in most cases) and not the diagram itself.

I hope that helps,
Stoyan

Hi,

I want to have a fixed side element that is not movable and holds a table of anchor points.

When I use the TableNode I have a caption that is used for dragging the node. Is it possible to use the TableNode without the caption and without the possibility to move it away from the side?
Or should I better use a different node, e.g. the ShapedNode for that purpose and program the table behavior on my own?

Regards

Thanks again,

now I want to create a DiagramLink between a row of a TableNode and an AnchorPoint of a ShapeNode.

The method Factory.CreateDiagramLink seems to support only creating Links between a row of TableNode and a ShapeNode as an entity. But I must create it to one single of several AnchorPoints.

I there any possibility to do so?

Regards,
Pontius

Thanks.

In my application the user should be able to create more than one DiagramLink between two nodes.

The background is that I have a big TabelNode on the left side of my diagram where the cells represent variables like "X1", "X2", or "Y". Now the user may drop a "Plus"-Node on the diagram that has two input variables and one output variable representing the sum. He wants to create two DiagramLinks from the TableNode: one links "X1" to the first AnchorPoint of the "Plus"-Node, the other one links "X2" to the second AnchorPoint of the same "Plus"-Node.

When the user has created the first link already then he cannot create the second link and the mouse symbol shows something like forbidden.

How can I work around this?

Regards,
Pontius

Thanks,

it was the Diagram.AllowLinksRepeat property that was set to false. By setting it to true I face the problem that multiple incoming links may link to an AnchorPoint.

I can handle the ValidateAnchorPoint event but how can I find out from the LinkValidationEventArg if an AnchorPoint has a link connected already?

Regards

Thanks,

that seems to work for my TemplatedNode but not for my TableNode. Probably because the TableNode has the property ConnectionStyle = TableConnectionStyle.Rows and the IncomingLinks of the TableNode always count 0.

Any suggestions how to handle the TableNode?

Regards

Do you know what the LinkValidationEventArgs.TableRow is usable for?
It is described as 'An integer value specifying the zero-based index of a TableNode's row.'

When I try to use it it is always zero for my TableNode and also zero for my TemplatedNode where it should better be -1 to show that it is invalid.

Regarding your suggestion, which virtual method of DiagramNode can I overload to have access to a CountLinks property.
I mean in the diagram_ValidateAnchorPoint method I would not cast to a derived MyTableNode class using try/catch to be able to access my very own code inside of the MyTableNode class.

Regards