效果与功能:
1. 简单配置数据源即可实现多层显示 2. 可设定初始选定的项目或目录 3. 获得选定的项目
为节点或叶子设定其特有之ToolTip:
// Constructor
public function TreeForCodeMaintain(codeMaintainService_:ICodeMaintainService) {
super();
_codeMaintainService = codeMaintainService_;
dataProvider = dataProvider = ["code1", "code2", "code3", ["folder1", ["subCode1", "subCode2", ["subFolder1", ["sc1", "sc2"]]]]];
dataDescriptor = new TreeDDForCodeMaintain();
labelFunction = labelFunForTree;
dataTipFunction = dataTipFunctionForTreeCode;
showDataTips = true;
}
protected function dataTipFunctionForTreeCode(item:Object):String {
if(item is Array) {
return String(item[0]);
}
// return item.toString();
return AppContext.getInstance().metaDomain.getEntityByName(String(item)).descriptionLocalized;
}
效果:
_treeOUs.expandChildrenOf(currentOU, true); // 展开目录
_treeOUs.selectedItem = ou; //选定孩子
_treeOUs.openItems = []; // 关闭所有节点;
expandChildrenOf(item:Object, open:Boolean):void
Opens or closes all the tree items below the specified item.
expandItem(item:Object, open:Boolean, animate:Boolean = false, dispatchEvent:Boolean = false, cause:Event = null):void
Opens or closes a branch item.
可以通过设定Tree的样式来更改Tree的icon. 如下
_treeLAAndSub = new Tree();
_treeLAAndSub.iconField = "hahah@#$@#$";
_treeLAAndSub.setStyle("folderClosedIcon", ImagesForActions.iconImport); //文件夹关闭时
_treeLAAndSub.setStyle("folderOpenIcon", ImagesForActions.iconExport); //文件夹打开
_treeLAAndSub.setStyle("defaultLeafIcon", ImagesForActions.iconCopy); // 叶子
_treeLAAndSub.setStyle("disclosureOpenIcon", ImagesForActions.iconRemove); //文件夹打开时旁边的图示
_treeLAAndSub.setStyle("disclosureClosedIcon", ImagesForActions.iconAdd); //文件夹关闭时旁边的图示
在很多情况下, 我们在DataGrid, List, Tree等容器中使用右键, 进行如修改, 删除 某行的操作. 问题是如果该容器初始状态下直接进行右键点击时, 并不能选定任何数据. 通过监听右键菜单SELECT事件, 获取到当前右键所击位置的Index, 并将之赋值给DataGrid或其他容器的SelectIndex, [...]
最新的三6条正面评论