Re: TSrinGrid has no parent

Thanks a lot Robert, you confirmed my own feelings that the answer is
not a simple one

I have stepped into the Ancestor cl***** whilst debugging

procedure TWinControl.SetFocus;
var
  Parent: TCustomForm;
begin
  Parent := GetParentForm(Self);
  if Parent <> nil then
    Parent.FocusControl(Self)
  else if ParentWindow <> 0 then
    Windows.SetFocus(Handle)
  else
    begin
      Self.HandleNeeded;
      ValidParentForm(Self);
    end
end;

For a checkbox and StringGrid, Parent is both nil.
However the StringGrid ParentWindow = 0 whilst the checkbox
ParentWindow has a value

The checkbox works fine but the StringGrid throws the 'No Parent
Window Error' at :

 ValidParentForm(Self)

As I say I am new to this but will continue to chip away at it, any
help or advice appreciated