Derma Issues

[Aeverdyn]

Hey everyone, I'm having some issues with Derma currently, I'm not new to Lua although I've only started Derma today (I never wanted to go through it, but here I am)

Now this is my code, some will seem familiar to those who view the wiki.

function DemoMenu ()
    MainMenu = vgui.Create( "DFrame" )
    MainMenu:SetPos( 350, 100 )
    MainMenu:SetSize( 900, 700 )
    MainMenu:SetTitle( "Menu" )
    MainMenu:SetBackgroundBlur( true )
    MainMenu:SetVisible( true )
    MainMenu:SetDraggable( true )
    MainMenu:ShowCloseButton( true )
    MainMenu:MakePopup()

    local DPanel = vgui.Create( "DPanel" )
    DPanel:SetPos( 360, 110 )
    DPanel:SetSize( 800, 600 )

    local DLabel = vgui.Create( "DLabel", DPanel )
    DLabel:SetPos( 400, 50 )
    DLabel:SetText( "I'm a DLabel inside a DPanel! :3" )
    DLabel:SizeToContents()
    DLabel:SetDark( 1 )
end
concommand.Add("OpenDemoMenu", DemoMenu )

Now my issue being is that the DPanel and DLabel aren't actually connected to the Frame, E.G It appears behind the Frame, and even when I close the frame it remains.

Thankyou in advance!

[Lolcats]

local DPanel = vgui.Create( "DPanel",  MainMenu)

[Aeverdyn]

[QUOTE=Lolcats;45280744]

local DPanel = vgui.Create( "DPanel",  MainMenu)

[/QUOTE]

Can't believe I missed that, it's shameful, Thankyou!