Comments on: Flex Component Lifecycle and Flex Component Framework http://flexscript.wordpress.com/2008/10/24/flex-component-lifecycle-and-flex-component-framework/ Flex Tricks - Tips - Code Snippets Mon, 28 Dec 2009 22:49:23 +0000 http://wordpress.com/ hourly 1 By: Gundostnv http://flexscript.wordpress.com/2008/10/24/flex-component-lifecycle-and-flex-component-framework/#comment-195 Gundostnv Sat, 28 Nov 2009 23:47:48 +0000 http://flexscript.wordpress.com/?p=172#comment-195 Aloha! rje Aloha! rje

]]> By: Gopi Krishna http://flexscript.wordpress.com/2008/10/24/flex-component-lifecycle-and-flex-component-framework/#comment-126 Gopi Krishna Tue, 05 May 2009 14:46:52 +0000 http://flexscript.wordpress.com/?p=172#comment-126 Nice explanation. Great! Nice explanation. Great!

]]> By: maximus http://flexscript.wordpress.com/2008/10/24/flex-component-lifecycle-and-flex-component-framework/#comment-121 maximus Thu, 09 Apr 2009 15:31:39 +0000 http://flexscript.wordpress.com/?p=172#comment-121 ah, fine article. Finally a good article on the subject. thanks ah, fine article. Finally a good article on the subject. thanks

]]> By: Chris’ Blog » Blog Archive » Flex Component Lifecycle http://flexscript.wordpress.com/2008/10/24/flex-component-lifecycle-and-flex-component-framework/#comment-103 Chris’ Blog » Blog Archive » Flex Component Lifecycle Tue, 17 Feb 2009 10:27:07 +0000 http://flexscript.wordpress.com/?p=172#comment-103 [...] can be really painful. So I did some research and found a really excellent article. Read it here at http://flexscript.wordpress.com/ Comment (RSS) [...] [...] can be really painful. So I did some research and found a really excellent article. Read it here at http://flexscript.wordpress.com/ Comment (RSS) [...]

]]> By: vengu http://flexscript.wordpress.com/2008/10/24/flex-component-lifecycle-and-flex-component-framework/#comment-89 vengu Sun, 11 Jan 2009 14:04:10 +0000 http://flexscript.wordpress.com/?p=172#comment-89 Great explanation! When is the post with an example coming? That would really help to understand it better Thanks, Venkat Great explanation!
When is the post with an example coming?
That would really help to understand it better
Thanks,
Venkat

]]> By: Shrikant Patil http://flexscript.wordpress.com/2008/10/24/flex-component-lifecycle-and-flex-component-framework/#comment-76 Shrikant Patil Thu, 13 Nov 2008 04:56:41 +0000 http://flexscript.wordpress.com/?p=172#comment-76 HI, Chandra Kumar, Here is what you asked for; 1) InvalidateSize() - Marks component for validation to update the size. say any property which affects the size of the component to update, like width, height etc. 2) InvalidateProperty() - Marks component validation to update the changes in property. say for example text area with a button. On clicking on the button text area get disabled. here the enabled property of the text area is changed. So at this time we need to mark component to update its enabled property value so that it shouldn't receive any user actions. 3) InvalidateDisplayList() - Marks component for validation to update any visual updates. Say that you have custom rating component which is used as itemRenderer for a list component. say you are creating no of squares depending on the rate data passed using Graphics API. at any moment if data changes then again the itemRenderer need to redraw the squares. Here invalidateDisplayList() method comes. The thing flex made different methods for invalidation is because the update of whole component is processor expensive process. assume there is only change in a single property which doesn't affect any visual changes of the component, then it is unnecessary to update whole component from beaning and redraw whole component again, instead InvalidateProperty() method does that job without redrawing the whole component. HI, Chandra Kumar,
Here is what you asked for;
1) InvalidateSize() – Marks component for validation to update the size. say any property which affects the size of the component to update, like width, height etc.
2) InvalidateProperty() – Marks component validation to update the changes in property. say for example text area with a button. On clicking on the button text area get disabled. here the enabled property of the text area is changed. So at this time we need to mark component to update its enabled property value so that it shouldn’t receive any user actions.
3) InvalidateDisplayList() – Marks component for validation to update any visual updates. Say that you have custom rating component which is used as itemRenderer for a list component. say you are creating no of squares depending on the rate data passed using Graphics API. at any moment if data changes then again the itemRenderer need to redraw the squares. Here invalidateDisplayList() method comes.

The thing flex made different methods for invalidation is because the update of whole component is processor expensive process. assume there is only change in a single property which doesn’t affect any visual changes of the component, then it is unnecessary to update whole component from beaning and redraw whole component again, instead InvalidateProperty() method does that job without redrawing the whole component.

]]> By: McQuillen Interactive » Blog Archive » Flex component lifecycle … can you explain that again? http://flexscript.wordpress.com/2008/10/24/flex-component-lifecycle-and-flex-component-framework/#comment-75 McQuillen Interactive » Blog Archive » Flex component lifecycle … can you explain that again? Wed, 12 Nov 2008 17:23:34 +0000 http://flexscript.wordpress.com/?p=172#comment-75 [...] fx:script [...] [...] fx:script [...]

]]> By: Chandra Kumar http://flexscript.wordpress.com/2008/10/24/flex-component-lifecycle-and-flex-component-framework/#comment-74 Chandra Kumar Wed, 12 Nov 2008 10:05:55 +0000 http://flexscript.wordpress.com/?p=172#comment-74 You have explained about the InvalidateSize() method with an example (the width property of a component). Could you please give an example each for InvalidateProperties() and InvalidateDisplayList() methods? You have explained about the InvalidateSize() method with an example (the width property of a component). Could you please give an example each for InvalidateProperties() and InvalidateDisplayList() methods?

]]> By: Stephen romantique Stulov http://flexscript.wordpress.com/2008/10/24/flex-component-lifecycle-and-flex-component-framework/#comment-64 Stephen romantique Stulov Mon, 27 Oct 2008 10:21:32 +0000 http://flexscript.wordpress.com/?p=172#comment-64 Beautiful explanation. I would only dream about such an explanation in those times when I was learning Flex:) Thanks hangalot) Beautiful explanation. I would only dream about such an explanation in those times when I was learning Flex:) Thanks hangalot)

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