I had a PANEL on the form. Then dynamically I create many more panels and place them on the form to look like a menu.
By mistake I deleted the main PANEL. then put it back as a new control.
Now the dynamic buttons don't show. But there's no error. So I'm guessing that the dynamic components are there but invisible (behind the main PANEL).
Is there a way to fix this? I can't seem to find a z-order property for the components.
Please help.
Here's the code segment:
For MenuItemCount:= 1 to MenuItemLimit Do
Begin
MenuButtons[MenuItemCount] := TPanel.Create(Self);
With MenuButtons[MenuItemCount] do
begin
Width:=180 - (10*MenuItem[MenuItemCount].Level);
Left:=4+10*MenuItem[MenuItemCount].Level;
Height:=25;
Top:= 5 + Height * (MenuItemCount-1);
Color:= clMenu;
Cursor:=crHandPoint;
Parent := MenuGroup; //Parent container for the items.
Caption := MenuItem[MenuItemCount].Title;
end;//End for
MenuGroup is the parent panel that is placed at design-time.
There is the method SendToBack, which lets you send a control to the back (and its BringToFront counterpart).
But I think it won't solve your problem. The 'Z-order' of components by default is the order in which they are created. The design time panel is created before the dynamic panels, even once you have removed it and put a new one on the form.
What I think happened (though it's a hard guess without seeing your code), is that you tried to find the panel by name, like this:
var
ParentPanel: TPanel;
DynamicPanel: TPanel;
begin
ParentPanel := FindComponent('PanelX') as TPanel;
DynamicPanel := TPanel.Create(Self);
DynamicPanel.Parent := ParentPanel;
This would work, but if you remove PanelX, and put in a new panel with a slightly different name, FindComponent won't find the panel and return nil. The DynamicPanels will have nil as a parent, causing them not to show up.