RE: [flexcoders] How to set EventListeners to undrawn components on a ViewStack?
If you feel that it is important to separate MXML and ActionScript, I suggesting writing MXML event attributes like this mx:Button id=okButton label=OK click=okButton_click(event)/ and then implementing okButton_click() in a separate .AS file that you bring in using mx:Script source=MyApp.script.as/ That way, the MXML doesn't really do anything; it just makes sure that the appropriate AS event handler gets set up. I can also think of two other ways to solve your problem, but I don't recommend either one. You could set creationPolicy=all on the ViewStack. But this will defeat the purpose of MXML's deferred instantiation feature, which is to minimize startup time by not creating visual components (such as the children of the 2nd pane of an ViewStack) until they need to be displayed. You could also override childrenCreated() in each ViewStack pane and, after calling childrenCreated(), use addEventListener() to attach your event handlers to that pane's children. - Gordon From: flexcoders@yahoogroups.com [mailto:flexcoders@yahoogroups.com] On Behalf Of Sascha Balkau Sent: Friday, August 18, 2006 6:28 PM To: flexcoders@yahoogroups.com Subject: RE: [flexcoders] How to set EventListeners to undrawn components on a ViewStack? Thanks Gordon! Sometimes I dont see the easiest solution by myself! However Im trying to keep MXML code and functionality code separate so Im wondering if there is another workaround for this? Though I can live with your suggestion in this situation. Sascha From: [EMAIL PROTECTED]ups.com [mailto:[EMAIL PROTECTED]ups.com] On Behalf Of Gordon Smith Sent: Saturday, 19. August, 2006 08:39 To: [EMAIL PROTECTED]ups.com Subject: RE: [flexcoders] How to set EventListeners to undrawn components on a ViewStack? Why call addEventListener() yourself? If you simply put an mouseDown or whatever event atttribute on your content item in MXML, it should work fine; addEventListener() will get called for you when the content item gets created. - Gordon From: [EMAIL PROTECTED]ups.com [mailto:[EMAIL PROTECTED]ups.com] On Behalf Of Sascha Balkau Sent: Friday, August 18, 2006 5:28 AM To: [EMAIL PROTECTED]ups.com Subject: [flexcoders] How to set EventListeners to undrawn components on a ViewStack? Hi list, I'm using a LinkBar with a ViewStack and on any of the ViwStack contents I have a button that needs to get a MouseEvent listener. When I start the app, I get an exception : Cannot access a property or method of a null object reference. Because all the buttons on the VieStacks that have not yet been drawn are not defined for the AddEventListener. Is there an easy workaround for this situation? Thanks, Sascha ___ __._,_.___ -- 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 Software development tool Software development Software development services Home design software Software development company 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. __,_._,___
[flexcoders] How to set EventListeners to undrawn components on a ViewStack?
Hi list, I'm using a LinkBar with a ViewStack and on any of the ViwStack contents I have a button that needs to get a MouseEvent listener. When I start the app, I get an exception : Cannot access a property or method of a null object reference. Because all the buttons on the VieStacks that have not yet been drawn are not defined for the AddEventListener. Is there an easy workaround for this situation? Thanks, Sascha -- 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] How to set EventListeners to undrawn components on a ViewStack?
Why call addEventListener() yourself? If you simply put an mouseDown or whatever event atttribute on your content item in MXML, it should work fine; addEventListener() will get called for you when the content item gets created. - Gordon From: flexcoders@yahoogroups.com [mailto:flexcoders@yahoogroups.com] On Behalf Of Sascha Balkau Sent: Friday, August 18, 2006 5:28 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] How to set EventListeners to undrawn components on a ViewStack? Hi list, I'm using a LinkBar with a ViewStack and on any of the ViwStack contents I have a button that needs to get a MouseEvent listener. When I start the app, I get an exception : Cannot access a property or method of a null object reference. Because all the buttons on the VieStacks that have not yet been drawn are not defined for the AddEventListener. Is there an easy workaround for this situation? Thanks, Sascha __._,_.___ -- 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 Software development tool Software development Software development services Home design software Software development company 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] How to set EventListeners to undrawn components on a ViewStack?
Thanks Gordon! Sometimes I dont see the easiest solution by myself! However Im trying to keep MXML code and functionality code separate so Im wondering if there is another workaround for this? Though I can live with your suggestion in this situation. Sascha From: flexcoders@yahoogroups.com [mailto:flexcoders@yahoogroups.com] On Behalf Of Gordon Smith Sent: Saturday, 19. August, 2006 08:39 To: flexcoders@yahoogroups.com Subject: RE: [flexcoders] How to set EventListeners to undrawn components on a ViewStack? Why call addEventListener() yourself? If you simply put an mouseDown or whatever event atttribute on your content item in MXML, it should work fine; addEventListener() will get called for you when the content item gets created. - Gordon From: flexcoders@yahoogroups.com [mailto:flexcoders@yahoogroups.com] On Behalf Of Sascha Balkau Sent: Friday, August 18, 2006 5:28 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] How to set EventListeners to undrawn components on a ViewStack? Hi list, I'm using a LinkBar with a ViewStack and on any of the ViwStack contents I have a button that needs to get a MouseEvent listener. When I start the app, I get an exception : Cannot access a property or method of a null object reference. Because all the buttons on the VieStacks that have not yet been drawn are not defined for the AddEventListener. Is there an easy workaround for this situation? Thanks, Sascha ___ __._,_.___ -- 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. __,_._,___
