I'm guessing this should be easy but I can't figure it out. I have a TwwDataGrid tied to a FireDac memory table. Since the memory table doesn't exist until runtime, I cannot specify the fields I want to include in the grid at design time. Therefore, I want to be able to specify the fields I need visible (not all of them) at runtime. I've tried Grid.AddColumn and Grid.Addfield but I must not being do it correctly. Any suggestions greatly appreciated.