Add note to a diagram

[SomersetGraham]

Hi Everyone
I have gone through all the examples and searched this forum but I cannot find how to add a note element to a diagram.
Please can someone point me in the right direction

Thanks

Graham

[Geert Bellekens]

Graham,

In order to put something on a diagram it first needs to exist as an Element.
So first create the element of type note (in the package containing the diagram)
Then create a new DiagramObject on the diagram and link that to the note with the ElementID

I think you probably best set the diagramID on the element to indicate that this note belongs to the diagram, but that is something you'll have to test yourself.

Geert

[SomersetGraham]

Hi Geert
I have created the note element and diagram as you suggested but the note does not appear on the diagram. The new element is created and exists in the model. I could not find a way of linking the diagram id to the element
Why does it not appear ? - here is he code

Code: [Select]

// Get Package and create new element
int packageID = CurrentlySelectedElement.PackageID;
EA.Package package = Repository.GetPackageByID(packageID);
EA.Element noteElement = (EA.Element)package.Elements.AddNew("newNote", "Note");
noteElement.Notes = "This text was added by me";
noteElement.Update();
package.Elements.Refresh();

// Create the new diagram
EA.Diagram diagram = (EA.Diagram)CurrentlySelectedElement.Diagrams.AddNew(CurrentlySelectedElement.Name + " Robustness", "Analysis");

// Add a new diagram object
EA.DiagramObject newDiagramObject = (EA.DiagramObject)diagram.DiagramObjects.AddNew("", "");
newDiagramObject.ElementID = noteElement.ElementID;
newDiagramObject.Update();
                    
//Display the diagram
diagram.DiagramObjects.Refresh();
diagram.Update();
Repository.OpenDiagram(diagram.DiagramID);


[SomersetGraham]

Hi
Found the problem - an Update is required after creating the diagram.
Are there any rules for when update and refresh should be called?

Graham

[Geert Bellekens]

No, no rules.
Just remember that update() saves things to the database.
Often you cannot link something to it without having saved it to the database before.
Refresh() is only necesarry if you plan the collection in memory later on in the program.
In your example the refresh() is not necesarry (if the operation ends there)

Geert