[flexcoders] [v2.0] ItemRenderer error:
I've finally upgraded from Beta3 to current version, and of course
some things broke.
I've traced the latest problem back to a LiveDocs example** I based my
code from which generates the error:
TypeError: Error #1009: Cannot access a property or method of a null
object reference.
at MyRenderers::MyTreeItemRenderer/set data()
// Override the set method for the data property
// to set the font color and style of each node.
override public function set data(value:Object):void {
super.data = value;
if(TreeListData(super.listData).hasChildren) {
setStyle(color, 0xff);
setStyle(fontWeight, 'bold');
}
else {
setStyle(color, 0x00);
setStyle(fontWeight, 'normal');
}
}
I just can't see what's wrong with it what it might be in the Flex 2
changes between Beta 3 and Release
(http://weblogs.macromedia.com/flexteam/archives/2006/06/flex_2_changes.cfm)
It's a bit of a show stopper at the moment...
any suggestions?
thanx
**
http://livedocs.macromedia.com/flex/2/docs/wwhelp/wwhimpl/common/html/wwhelp.htm?context=LiveDocs_Partsfile=0856.html
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Re: [flexcoders] [v2.0] ItemRenderer error:
Check for if(data == null) before doing anything inside the implicit set for data...On 7/30/06, Barry Beattie
[EMAIL PROTECTED] wrote:
I've finally upgraded from Beta3 to current version, and of course
some things broke.
I've traced the latest problem back to a LiveDocs example** I based my
code from which generates the error:
TypeError: Error #1009: Cannot access a property or method of a null
object reference.
at MyRenderers::MyTreeItemRenderer/set data()
// Override the set method for the data property
// to set the font color and style of each node.
override public function set data(value:Object):void {
super.data = "">
if(TreeListData(super.listData).hasChildren) {
setStyle(color, 0xff);
setStyle(fontWeight, 'bold');
}
else {
setStyle(color, 0x00);
setStyle(fontWeight, 'normal');
}
}
I just can't see what's wrong with it what it might be in the Flex 2
changes between Beta 3 and Release
(http://weblogs.macromedia.com/flexteam/archives/2006/06/flex_2_changes.cfm
)
It's a bit of a show stopper at the moment...
any suggestions?
thanx
** http://livedocs.macromedia.com/flex/2/docs/wwhelp/wwhimpl/common/html/wwhelp.htm?context=LiveDocs_Partsfile=0856.html
__._,_.___
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Re: [flexcoders] [v2.0] ItemRenderer error:
sorry... if(value == null)On 7/30/06, Brendan Meutzner [EMAIL PROTECTED] wrote:
Check for if(data == null) before doing anything inside the implicit set for data...On 7/30/06,
Barry Beattie
[EMAIL PROTECTED] wrote:
I've finally upgraded from Beta3 to current version, and of course
some things broke.
I've traced the latest problem back to a LiveDocs example** I based my
code from which generates the error:
TypeError: Error #1009: Cannot access a property or method of a null
object reference.
at MyRenderers::MyTreeItemRenderer/set data()
// Override the set method for the data property
// to set the font color and style of each node.
override public function set data(value:Object):void {
super.data = "">
if(TreeListData(super.listData).hasChildren) {
setStyle(color, 0xff);
setStyle(fontWeight, 'bold');
}
else {
setStyle(color, 0x00);
setStyle(fontWeight, 'normal');
}
}
I just can't see what's wrong with it what it might be in the Flex 2
changes between Beta 3 and Release
(http://weblogs.macromedia.com/flexteam/archives/2006/06/flex_2_changes.cfm
)
It's a bit of a show stopper at the moment...
any suggestions?
thanx
** http://livedocs.macromedia.com/flex/2/docs/wwhelp/wwhimpl/common/html/wwhelp.htm?context=LiveDocs_Partsfile=0856.html
__._,_.___
--
Flexcoders Mailing List
FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt
Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com
SPONSORED LINKS
Web site design development
Computer software development
Software design and development
Macromedia flex
Software development best practice
YAHOO! GROUPS LINKS
Visit your group "flexcoders" on the web.
To unsubscribe from this group, send an email to:[EMAIL PROTECTED]
Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
__,_._,___
Re: [flexcoders] [v2.0] ItemRenderer error:
Brendan Meutzner Sun, 30 Jul 2006 21:14:58 -0700 sorry... if(value == null) cheers Brendan. That did indeed fix it. Thankyou. but I do have to ask why, since the existing code (without the corrections mentioned on that example) worked fine with B3... (I just need a better understanding of what to look for in the rest of the B3 code). I can't seem to find your fix as a specific reference in http://weblogs.macromedia.com/flexteam/archives/2006/06/flex_2_changes.cfm any background info is appreciated. I'm still getting used to Flex... thanx again barry.b -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [flexcoders] [v2.0] ItemRenderer error:
I don't have a solid answer, but I'd guess that the setter is getting called during initialization process before the object exists in the dataProvider... try running in debug mode and look through the stack trace when the error is caught... might provide some answers... On 7/30/06, Barry Beattie [EMAIL PROTECTED] wrote: Brendan Meutzner Sun, 30 Jul 2006 21:14:58 -0700 sorry... if(value == null) cheers Brendan. That did indeed fix it. Thankyou. but I do have to ask why, since the existing code (without the corrections mentioned on that example) worked fine with B3... (I just need a better understanding of what to look for in the rest of the B3 code). I can't seem to find your fix as a specific reference in http://weblogs.macromedia.com/flexteam/archives/2006/06/flex_2_changes.cfm any background info is appreciated. I'm still getting used to Flex... thanx again barry.b __._,_.___ -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com SPONSORED LINKS Web site design development Computer software development Software design and development Macromedia flex Software development best practice YAHOO! GROUPS LINKS Visit your group "flexcoders" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. __,_._,___
