{"id":492,"date":"2011-09-13T10:52:11","date_gmt":"2011-09-13T08:52:11","guid":{"rendered":"http:\/\/www.capri-soft.de\/blog\/?p=492"},"modified":"2011-09-13T11:16:38","modified_gmt":"2011-09-13T09:16:38","slug":"adobe-flex-3-rekursive-iteration-durch-alle-controls-eines-canvas","status":"publish","type":"post","link":"https:\/\/www.capri-soft.de\/blog\/?p=492","title":{"rendered":"Adobe Flex 3: Rekursive Iteration \u00fcber alle Controls eines Canvas"},"content":{"rendered":"<h1>Aufgabenstellung<\/h1>\n<p>Gelegentlich ist es n\u00f6tig \u00fcber alle Komponenten eines mx:Canvas-Elements, einem Container oder einer UIComponent zu iterieren. <\/p>\n<p>Beispiele:<br \/>\n* Deaktivieren von allen Controls eines bestimmten Typs (alle Textfelder ausgrauen)<br \/>\n* Neuschriftung von allen Labels<br \/>\n* Deaktivieren aller Reiter<\/p>\n<h1>Ansatz<\/h1>\n<p>Durch den Typecast in einen DisplayObjectContainer l\u00e4sst sich \u00fcber jedes UI-Element iterieren. Eine Startmethode \u00fcbergibt das Canvas, bzw. das UI-Urelement. Die Rekursionsmethode castet in den kompatiblen Supertyp DisplayObjectContainer und verf\u00fcgt \u00fcber M\u00f6glichkeiten der Iteration \u00fcber seine  Eigenschaften. <\/p>\n<h1>L\u00f6sung<\/h1>\n<p>\/\/ Startmethode \u00fcbergibt Urelement der Rekursion<br \/>\npublic function startSearch():void<br \/>\n{<br \/>\n  searchRecursion(this);<br \/>\n}<\/p>\n<p>\/\/ Rekursionsmethode ruft sich selbst auf wenn Child-Elemente v.h.<br \/>\npublic function searchRecursion(current:DisplayObjectContainer):void<br \/>\n{<br \/>\n   for ( var i:Number=0; i< current.numChildren; i++)\n   {\n      var child:DisplayObject = current.getChildAt(i); \n      trace(getQualifiedClassName(child));\n      var childContainer:DisplayObjectContainer = child as DisplayObjectContainer; \n      \n       if(childContainer) \n       { \n          searchRecursion(childContainer); \n       } \n   } \n}\n[\/javascript]\n<\/p>\n<iframe src=\"http:\/\/www.facebook.com\/plugins\/like.php?href=https%3A%2F%2Fwww.capri-soft.de%2Fblog%2F%3Fp%3D492&amp;layout=standard&amp;show_faces=true&amp;width=450&amp;action=like&amp;colorscheme=light\" scrolling=\"no\" frameborder=\"0\" allowTransparency=\"true\" style=\"border:none; overflow:hidden; width:450px;margin-top:5px;\"><\/iframe>","protected":false},"excerpt":{"rendered":"<p>Aufgabenstellung Gelegentlich ist es n\u00f6tig \u00fcber alle Komponenten eines mx:Canvas-Elements, einem Container oder einer UIComponent zu iterieren. Beispiele: * Deaktivieren von allen Controls eines bestimmten Typs (alle Textfelder ausgrauen) * Neuschriftung von allen Labels * Deaktivieren aller Reiter Ansatz Durch den Typecast in einen DisplayObjectContainer l\u00e4sst sich \u00fcber jedes UI-Element iterieren. Eine Startmethode \u00fcbergibt das &hellip; <a href=\"https:\/\/www.capri-soft.de\/blog\/?p=492\" class=\"more-link\"><span class=\"screen-reader-text\">Adobe Flex 3: Rekursive Iteration \u00fcber alle Controls eines Canvas<\/span> weiterlesen <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[5],"tags":[],"class_list":["post-492","post","type-post","status-publish","format-standard","hentry","category-adobe-flex"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p4yGeN-7W","jetpack_likes_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/www.capri-soft.de\/blog\/index.php?rest_route=\/wp\/v2\/posts\/492","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.capri-soft.de\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.capri-soft.de\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.capri-soft.de\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.capri-soft.de\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=492"}],"version-history":[{"count":3,"href":"https:\/\/www.capri-soft.de\/blog\/index.php?rest_route=\/wp\/v2\/posts\/492\/revisions"}],"predecessor-version":[{"id":495,"href":"https:\/\/www.capri-soft.de\/blog\/index.php?rest_route=\/wp\/v2\/posts\/492\/revisions\/495"}],"wp:attachment":[{"href":"https:\/\/www.capri-soft.de\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=492"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.capri-soft.de\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=492"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.capri-soft.de\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=492"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}