I want to associate some extra info with a TDiagramBlock, just a simple list of Name/Value pairs (i.e. a TStringList). I thought I should be able to use the TDiagramBlock.Obj property for this but I can't work out how. I have tried all sorts of combinations of create, assign etc. but I always get Access Violations at some point.
Can someone tell me a) is the .Obj the right place to do this, b) if so, how? or c) if not how should I do this?
(some of) My attempts:
with (MyDiagramBlock.obj as TStringList) do
begin
TStringList.Create;
AddPair('Name', 'Value');
end;
or:
MyStringList : TStringList;
begin
MyStringList.create;
MyStringList.AddPair('Name', 'Value');
(MyDiagramBlock.obj as TStringList).assign(MyStringList);
MyStringList.free;