sapui5 - unable to perform expand query in OData v2 model - odata

Question

I develop a little demo application with SAP Netweaver Gateway OData as a backend and SAPUI5 1.44 as UI. I am facing a problem with expanding data with the OData v2 model.
My OData service has 3 entity sets: INDSet, INFSet and INDINFSet. INDSet has a 1:N navigation to INDINFSet, so I'm able to get all INDINFs for particular IND via the following URL:
/sap/opu/odata/SAP/ZGW_ODATA_TEST_SRV/INDSet('IND0000001')/INDINFSet
My UI consists of 2 views:
master view: only has one table.
detail view: a form which I display as a dialog screen. The form has fields of the IND entity and a table which contains INDINFSet records.
The problem is that there is no data on detail view - neither in master entity fields, nor in details table. I don't see any requests in "Network" tab of Chrome dev tools when I open Dialog form - neither on mock server, nor on NW Gateway backend.
Here is a code in master controller which opens the form dialog:
var tbl = this.getView().byId('IndsTable');
var ctx = tbl.getContextByIndex(tbl.getSelectedIndex());
var oData = ctx.getProperty(ctx.sPath);
var sContentDensityClass = this.getOwnerComponent().getContentDensityClass();
var oView = this.getView();
var controller = sap.ui.controller("demo.modules.indform.controller.IndFormDialog");
controller._indFormDialog = oView.byId('IndFormDialog');
if (!controller._indFormDialog) {
controller._indFormDialog = sap.ui.xmlfragment(oView.getId(),
'demo.modules.indform.view.IndFormDialog', controller);
jQuery.sap.syncStyleClass(sContentDensityClass, oView,
controller._indFormDialog);
oView.addDependent(controller._indFormDialog);
}
oView.bindElement({
path: sPath,
model: 'mInd'
});
controller.openDialog(oView);
And here is the dialog itself:
<core:FragmentDefinition
xmlns="sap.m"
xmlns:mvc="sap.ui.core.mvc"
xmlns:l="sap.ui.layout"
xmlns:f="sap.ui.layout.form"
xmlns:t="sap.ui.table"
xmlns:fb="sap.ui.comp.filterbar"
xmlns:core="sap.ui.core">
<Dialog
id="IndFormDialog"
contentWidth="44rem"
contentHeight="49rem"
class="sapUiNoContentPManageing"
showHeader="false"
verticalScrolling="false"
>
<content>
<f:SimpleForm
class='IndForm'
id="IndForm"
maxContainerCols="2"
editable="false"
layout="ResponsiveGridLayout"
labelSpanL="12"
labelSpanM="12"
labelSpanS="12"
emptySpanL="0"
emptySpanM="0"
emptySpanS="0"
columnsL="2"
columnsM="2"
columnsS="2">
<f:content>
<core:Title/>
<Label text="Index code" />
<Input
type="Text"
value="{mInd>/Id}"
/>
<Label text="Index name" />
<Input
type="Text"
value="{mInd>/Sname}"
/>
<Label text="Actual till" />
<DatePicker
value="{mInd>/Eusdt}"
/>
</f:content>
</f:SimpleForm>
<t:Table
id="Infosystems"
rows="{mInd>INDINFSet}"
visibleRowCount="10"
visibleRowCountMode="Auto"
selectionMode="None"
enableSelectAll="false"
ariaLabelledBy="title"
>
<t:toolbar>
<Toolbar>
<Title
id="infosystableTitle"
text="Infosystems"
level="H3"/>
</Toolbar>
<Button
icon="sap-icon://add"
tooltip="Add record"
press="addInfosystem" >
<layoutData>
<OverflowToolbarLayoutData priority="NeverOverflow" />
</layoutData>
</Button>
</t:toolbar>
<t:columns>
<t:Column>
<Label text="Infosystem"/>
<t:template>
<ComboBox
items="{
path: 'mInfs>/INFSet',
sorter: { path: 'Name' },
templateShareable: true
}"
>
<items>
<core:Item key="{mInfs>Id}" text="{mInfs>Name}" selectedKey="{mInd>Infosys}"/>
</items>
</ComboBox>
</t:template>
</t:Column>
<t:Column
width="5em">
<Label text="Is source"/>
<t:template>
<CheckBox selected="{mInd>IsSrc}" />
</t:template>
</t:Column>
</t:columns>
</t:Table>
</content>
<buttons>
<Button
id="IndFormDialogButtonSave"
text="Save"
type="Accept"
press="onPressSave" />
<Button
id="IndFormDialogButtonCancel"
text="Close"
type='Reject'
press="onPressCancel" />
</buttons>
</Dialog>
</core:FragmentDefinition>

Answer 1

Could you try this? Let me know afterwards...
oView.bindElement({
path: sPath,
model: 'mInd',
parameters: {expand:'INDINFSet'}
});