ArgumentError: Undefined state 'up'.
        at
mx.core::UIComponent/getState()[E:\dev\flex_3_beta3\sdk\frameworks\projects \
framework\src\mx\core\UIComponent.as:7055]
        at
mx.core::UIComponent/findCommonBaseState()[E:\dev\flex_3_beta3\sdk\framewor k
s\projects\framework\src\mx\core\UIComponent.as:7075]
        at
mx.core::UIComponent/commitCurrentState()[E:\dev\flex_3_beta3\sdk\framework s
\projects\framework\src\mx\core\UIComponent.as:6974]
        at
mx.core::UIComponent/setCurrentState()[E:\dev\flex_3_beta3\sdk\frameworks\p r
ojects\framework\src\mx\core\UIComponent.as:6938]
        at mx.core::UIComponent/set
currentState()[E:\dev\flex_3_beta3\sdk\frameworks\projects\framework\src\mx \
core\UIComponent.as:4250]
        at
mx.controls::Button/http://www.adobe.com/2006/flex/mx/internal::viewIconForP
hase()[E:\dev\flex_3_beta3\sdk\frameworks\projects\framework\src\mx\control s
\Button.as:1972]
        at
mx.controls::Button/http://www.adobe.com/2006/flex/mx/internal::viewIcon()[E
:\dev\flex_3_beta3\sdk\frameworks\projects\framework\src\mx\controls\Button .
as:1871]
        at
mx.controls::Button/commitProperties()[E:\dev\flex_3_beta3\sdk\frameworks\p r
ojects\framework\src\mx\controls\Button.as:1356]
        at
mx.core::UIComponent/validateProperties()[E:\dev\flex_3_beta3\sdk\framework s
\projects\framework\src\mx\core\UIComponent.as:5660]
        at
mx.managers::LayoutManager/validateProperties()[E:\dev\flex_3_beta3\sdk\fra m
eworks\projects\framework\src\mx\managers\LayoutManager.as:517]
        at
mx.managers::LayoutManager/doPhasedInstantiation()[E:\dev\flex_3_beta3\sdk\ f
rameworks\projects\framework\src\mx\managers\LayoutManager.as:637]
        at Function/http://adobe.com/AS3/2006/builtin::apply()
        at
mx.core::UIComponent/callLaterDispatcher2()[E:\dev\flex_3_beta3\sdk\framewo r
ks\projects\framework\src\mx\core\UIComponent.as:8450]
        at
mx.core::UIComponent/callLaterDispatcher()[E:\dev\flex_3_beta3\sdk\framewor k
s\projects\framework\src\mx\core\UIComponent.as:8393]

From: flexlib@googlegroups.com [mailto:flexlib@googlegroups.com] On Behalf
Of Dave Glasser
Sent: Saturday, December 29, 2007 4:59 PM
To: flexlib@googlegroups.com
Subject: [flexlib] Offered contribution: WindowShade control

Attached is the source for a component I wrote which I've found to be pretty
useful. A sample can be seen here:
 
http://qform.sourceforge.net/WindowShade_Sample.swf
 
I'd like to contribute it to the Flexlib project, if it is deemed worthy.
 
This control displays a button, which when clicked, will cause a panel to
"unroll" beneath    
it like a windowshade being pulled down; or if the panel is already
displayed it  will be "rolled up" like a windowshade being rolled up. When
multiple WindowShades are stacked in a VBox, the result will be similar to
an mx.containers.Accordian container, except that multiple WindowShades can
be opened simultaneously whereas an Accordian acts like a tab navigator,
with only one panel visible at a time.
 
If you unzip the attached file in a clean working directory, everything
should build; the library, the example app, the ASDoc, etc.  It's all there,
along with the proper license notices.
 
If this becomes part of Flexlib, there are a few more enhancements I'll make
to it, but for right now it serves my own purposes as it is.</div