为什么我会在DataReceived事件上获得oevent.getParameter（data＆＃x27;）？
this.getView().bindElement({
path: `/Employees('${this._userId}')`,
parameters: { expand: 'aaa,bbb,ccc' },
events: {
dataReceived: (oEvent) => {
this.getView().setBusy(false)
debugger
}
}
});
我可以在$ batch请求的响应中看到数据。 当我在datareceived函数处理程序中放置一个断点时，我还可以通过this.getView（）。getModel（）。getProperty（this.getView（）.getBindingContext（））。 getPath（））。 参数oevent.mparameters.data存在，但是该值是undefined。
如果我忽略展开，则设置了数据。关联实体集的所有实体是否需要与其父母建立关联？
this.getView().bindElement({
path: `/Employees('${this._userId}')`,
parameters: { expand: 'aaa,bbb,ccc' },
events: {
dataReceived: (oEvent) => {
this.getView().setBusy(false)
debugger
}
}
});
I can see data in the response of the $batch request.
When I put a breakpoint in the dataReceived function handler, I can also see the data via this.getView().getModel().getProperty(this.getView().getBindingContext().getPath()).
The parameter oEvent.mParameters.data exists, but the value is undefined.
If I leave out expand, the data is set. Do all entities of an associated entityset need to have an association to its parent?
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This is by design according to the API reference of
dataReceived：您必须在$ batch响应中有一个错误消息，否则请求以某种方式中止了。
缺少
数据参数当前是bindobject上的失败请求的唯一记录指标/bindelement。PS：另请参阅 https：//github.com/sap/sap/sap/openui5/issues/2263
This is by design according to the API reference of
dataReceived:You must have somewhere an error message in the $batch response, or the request was somehow aborted.
The missing
dataparameter is currently the only documented indicator for a failed request onbindObject/bindElement.PS: See also https://github.com/SAP/openui5/issues/2263