How does one use the DestroyComponents method

I dynamically create a whole lot of TPanels on a parent panel called for example PlanPnl.  When I want to draw a new set of panels on the same parent panel, I call PlanPnl.DestroyComponents to first remove the previous set of panels from the parent.  However after calling PlanPnl.DestroyComponents, the children panels remain on the parent panel.  What must I do to clear the parent panel?
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Geert GOracle dbaCommented:
DestroyComponents destroys all owned components, not the contained ones
The components on the Panel are owned by the form, and the parent is the panel

use below function as:

procedure TForm.ShowPlanPnl;
  // Add components here
procedure DestroyChildren(AWinControl: TWinControl);
var I: Integer;
  aChild: TControl;
  for I := AWinControl.ControlCount-1 to 0 do
    aChild := AWinControl.Controls[I];

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Geert GOracle dbaCommented:

for I := AWinControl.ControlCount-1 downto 0 do
HenryM2Author Commented:
Sorry for only getting back now, I was away. Solution works perfectly, thanks.
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