代碼: //.......................展開(kāi)所有節點(diǎn)........................// function expandTree(t:mx.controls.Tree) : Void { var i:Number=0; var node:mx.controls.treeclasses.TreeNode=t.getTreeNodeAt(i); while (node != undefined){ if (t.getIsBranch(node) && ! t.getIsOpen(node)){ t.setIsOpen(node,true); } i++; node=t.getNodeDisplayedAt(i); } }
//.......................收合所有節點(diǎn)........................// function collapseTree(t:mx.controls.Tree) : Void { var i:Number=0; var node:mx.controls.treeclasses.TreeNode=t.getTreeNodeAt(i); while (node != undefined){ if (t.getIsBranch(node) && t.getIsOpen(node)){ t.setIsOpen(node,false); } i++; node=t.getNodeDisplayedAt(i); } }