My Object Page V4 is empty , except Header. Even i can't see the edit and delete options too.

[Vamsibusi]

Hi Team,

I have developed a RAP Application in my project , a Table zbumamapping should be exposed as a List view with object page. Every thing is fine . But when i am clicking on any entry on the screen , the object page doesn't have any fields. It is empty. The service i used is V4. I can see only the header in the object page. 

Below is the screen shot of the app i created. 

When i click on an item , the next object page is empty ( except company code as header ) , also there are no edit and delete options on screen.

I have maintained the below metadata extensions.

@Metadata.layer: #CORE

@UI : { headerInfo:{

typeName: 'Mapping Table',

typeNamePlural: 'Mapping Table',

title: {

type: #STANDARD,

label: 'Mapping Table',

value: 'Companycode'

},

description.value: 'Companycode' }

}

@Search.searchable: true

annotate view ZC_BIMAMAPPING

with

{

@UI.facet: [{ id: 'Mapping Data',

purpose: #STANDARD,

type: #IDENTIFICATION_REFERENCE,

label: 'Mapping Data',

//targetQualifier: 'HeaderItems',

position: 10 } ]

@UI: { lineItem: [{ position: 10 }],

identification: [{ position: 10 }],

selectionField: [{ position: 10 }] }

//identification: [{qualifier: 'HeaderItems'}] }

@EndUserText.label: 'Company Code'

Companycode;

@UI: { lineItem: [{ position: 20 }],

identification: [{ position: 20 }],

selectionField: [{ position: 20 }]}

//identification: [{qualifier: 'HeaderItems'}] }

@EndUserText.label: 'Mapping Type'

Maptype;

@UI: { lineItem: [{ position: 30 }],

identification: [{ position: 30 }],

selectionField: [{ position: 30 }] }

// identification: [{qualifier: 'HeaderItems'}] }

@Search.defaultSearchElement: true

@EndUserText.label: 'Source Value'

Sourcevalue;

@UI: { lineItem: [{ position: 40 }],

identification: [{ position: 40 }] }

//identification: [{qualifier: 'HeaderItems'}]}

@EndUserText.label: 'Target Value'

Targetvalue;

@UI: {

identification: [{ position: 50 }] }

//identification: [{qualifier: 'HeaderItems'}] }

@EndUserText.label: 'Created By'

created_by;

@UI: {

identification: [{ position: 60 }] }

//identification: [{qualifier: 'HeaderItems'}] }

@EndUserText.label: 'Created At'

created_at;

@UI: {

identification: [{ position: 70 }] }

//identification: [{qualifier: 'HeaderItems'}] }

@EndUserText.label: 'Last Changed By'

last_changed_by;

@UI: {

identification: [{ position: 80 }] }

//identification: [{qualifier: 'HeaderItems'}] }

@EndUserText.label: 'Last Changed At'

last_changed_at;

//@UI.hidden: true

//ExcelRowNumber;

}

.

 Even though i cant able to view the complete object page and edit it. Please let me know whether i need to implement any code ? Mine is a Managed scenario.

Is there something we need to do in the BAS side too to enable the object view?

@Andre_Fischer  I saw you helping many in RAP Abap applications. Can you help me too. 

BR,

Vamsi Krishna Busi,

8867784916.

[junwu]

check my answer here

https://community.sap.com/t5/technology-q-a/object-page-in-fiori-list-report-is-blank-column-header-...

[Vamsibusi]

Hi @junwu  , I used Annotation #LINEITEM_REFERENCE , still I can't see anything , Could you please help me.

Below is my Metadata extension with the above annotation added. Please correct me where the problem is. 

One more thing , is the kind of PACKAGE to which we saved also effect the object page ? I have saved my changes to a Super package, means under which childs will be there. 

@Metadata.layer: #CORE

@ui: { headerInfo:{

typeName: 'Mapping Table',

typeNamePlural: 'Mapping Table',

title: {

type: #STANDARD,

label: 'Mapping Table',

value: 'Companycode'

},

description.value: 'Companycode' }

}

@Search.searchable: true

annotate view ZC_BIMAMAPPING

with

{

@ui.facet: [{ id: 'Mapping Data',

purpose: #STANDARD,

type: #LINEITEM_REFERENCE,

label: 'Mapping Details',

targetQualifier: 'LineItems',

position: 10 } ]

@ui: { lineItem: [{ position: 10 }],

identification: [{ position: 10 }],

selectionField: [{ position: 10 }] ,

identification: [{qualifier: 'LineItems'}] }

@EndUserText.label: 'Company Code'

Companycode;

@ui: { lineItem: [{ position: 20 }],

identification: [{ position: 20 }],

selectionField: [{ position: 20 }],

identification: [{qualifier: 'LineItems'}] }

@EndUserText.label: 'Mapping Type'

Maptype;

@ui: { lineItem: [{ position: 30 }],

identification: [{ position: 30 }],

selectionField: [{ position: 30 }],

identification: [{qualifier: 'LineItems'}] }

@Search.defaultSearchElement: true

@EndUserText.label: 'Source Value'

Sourcevalue;

@ui: { lineItem: [{ position: 40 }],

identification: [{ position: 40 }],

identification: [{qualifier: 'LineItems'}]}

@EndUserText.label: 'Target Value'

Targetvalue;

@ui: {

identification: [{ position: 50 }] ,

identification: [{qualifier: 'LineItems'}] }

@EndUserText.label: 'Created By'

created_by;

@ui: {

identification: [{ position: 60 }] ,

identification: [{qualifier: 'LineItems'}] }

@EndUserText.label: 'Created At'

created_at;

@ui: {

identification: [{ position: 70 }] ,

identification: [{qualifier: 'LineItems'}] }

@EndUserText.label: 'Last Changed By'

last_changed_by;

@ui: {

identification: [{ position: 80 }] ,

identification: [{qualifier: 'LineItems'}] }

@EndUserText.label: 'Last Changed At'

last_changed_at;

//@UI.hidden: true

//ExcelRowNumber;

}

[junwu]

type: #LINEITEM_REFERENCE, that is to reference the child entity. you only have one entity, it is not for you. you need field group annotation.