Question
I have phGantTimePackage, and I use TPhGant to show the planning of a day. In my form I have a refresh button who re-select in the database and add row in the Gantt.
My problem is that I need to clear the gantt before refresh it.
How can I do it.
Answer
In the activeX version call IphGantX3.ClearTree
In VCL
  if UseGridNotTree then
  begin
    Grid.GetTree.RootDataEntities.Clear;
  end                   
  else
    TreeView.Clear;