SAPUI5-如何从详细信息视图获取扩展的上下文

2020-08-16 21:42发布

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尊敬的专家,

我正在尝试从详细视图中的扩展实体获取上下文,但是当我使用expand参数时,它仅返回键列表。

有人可以帮我吗?

这是我的代码:

 onInit:函数(){
 var oViewModel = new JSONModel({
 忙:错误,
 延迟:0
 lineItemListTitle:this.getResourceBundle()。getText(" detailLineItemTableHeading")
 });

 this.getRouter()。getRoute(" object")。attachPatternMatched(this._onObjectMatched,this);

 this.setModel(oViewModel," detailView");

 this.getOwnerComponent()。getModel()。metadataLoaded()。then(this._onMetadataLoaded.bind(this));

 },

 _onObjectMatched:函数(oEvent){
 var sObjectId = oEvent.getParameter(" arguments")。objectId;

 this.getModel(" appView")。setProperty("/img/layout"," TwoColumnsMidExpanded");
 this.getModel()。metadataLoaded()。then(function(){
 var sObjectPath = this.getModel()。createKey(" Categories",{
 CategoryID:sObjectId
 });
 this._bindView("/" + sObjectPath);
 } .bind(this));
 },


 _bindView:函数(sObjectPath){
//在视图绑定期间设置忙碌指示器
 var oViewModel = this.getModel(" detailView");

 oViewModel.setProperty("/img/busy",false);

         this.getView()。bindElement({
 路径:sObjectPath,
 参数:{
 展开:"产品"
 },
 事件:{
 改变:this._onBindingChange.bind(this),
 dataRequested:function(){
 oViewModel.setProperty("/img/busy",true);
 },
 dataReceived:function(){
 oViewModel.setProperty("/img/busy",false);
 }
 }
 });
 },

 _onBindingChange:函数(){
 var oView = this.getView(),
 oElementBinding = oView.getElementBinding();


//没有用于绑定的数据
 如果(!oElementBinding.getBoundContext()){
 this.getRouter()。getTargets()。display(" detailObjectNotFound");
//如果找不到对象,则在主列表中进行选择
//不再有意义。
 this.getOwnerComponent()。oListSelector.clearMasterListSelection();
 返回;
 }

 var sPath = oElementBinding.getPath(),
 oResourceBundle = this.getResourceBundle(),
 oObject = oView.getModel()。getObject(sPath),
 sObjectId = oObject.CategoryID,
 sObjectName = oObject.CategoryName,
 oViewModel = this.getModel(" detailView"),
 oBindingContext = this.getView()。getBindingContext()。getObject();

         console.log(" Object",oObject);

 this.getOwnerComponent()。oListSelector.selectAListItem(sPath);

         oViewModel.setProperty("/img/shareSendEmailSubject",
 oResourceBundle.getText(" shareSendEmailObjectSubject",[sObjectId]));
 oViewModel.setProperty("/img/shareSendEmailMessage",
     oResourceBundle.getText(" shareSendEmailObjectMessage",[sObjectName,sObjectId,location.href])));
 },


 

输出:

预期输出:

(45.7 kB)