Destroying tooltips generates error after 4

Question

I am working on an instruction page for a Flex 3 app. I have
a clickable list of navigation tool names; descriptions for each
tool appear when the user clicks on the name. I also want to
display a tooltip for the navigation tool when the user clicks.
Code summary (see attached code for details):
Set variables for the 7 tool tips.
Call function to destroy any tooltip that exists.
On listitem click: 1. Call function to distroy any tooltip
that exists. 2. Call function to create the approprate tooltip.
The application works through 3 calls to the destroy
function. On the fourth call (3rd listitem click), I get the
following error:
ArgumentError: Error #2025: The supplied DisplayObject must
be a child of the caller.
at flash.display::DisplayObjectContainer/getChildIndex()
at mx.managers::SystemManager/
http://www.adobe.com/2006/flex/mx/internal::rawChildren_getChildIndex()[C:\autobuild\3.2.0 \frameworks\projects\framework\src\mx\managers\SystemManager.as:2113
at
mx.managers::SystemChildrenList/removeChild()[C:\autobuild\3.2.0\frameworks\projects\fram ework\src\mx\managers\SystemChildrenList.as:132]
at
mx.managers::SystemManager/removeChildFromSandboxRoot()[C:\autobuild\3.2.0\frameworks\pro jects\framework\src\mx\managers\SystemManager.as:4418]
at
mx.managers::ToolTipManagerImpl/destroyToolTip()[C:\autobuild\3.2.0\frameworks\projects\f ramework\src\mx\managers\ToolTipManagerImpl.as:1259]
at
mx.managers::ToolTipManager$/destroyToolTip()[C:\autobuild\3.2.0\frameworks\projects\fram ework\src\mx\managers\ToolTipManager.as:436]
This error is related to the number of times the destroy
function is called, not to which tooltip create function was called
or to the order of the listitem clicks.
Any ideas?

Answer 1

"nnmmooppqq" <[email protected]> wrote in
message
news:gq6hou$rcr$[email protected]..
> Thanks for the reply. I can't just let Flex handle it
because the exact
> text
> and the tool tip to be visible is handled through an XML
feed. So I have
> to
> read XML and set variables based on that content.
I don't understand why you think this is incompatible with
allowing the
framework to do what it was designed to do.
> Again, my problem is that the fourth time the
destroyToolTip method is
> called,
> I get an error. Any ideas?
Yes. Tooltips aren't intended to be used this way, so you're
probably doing
something that's running afoul of the way things are supposed
to be done and
everything is exploding in your face.