Extension Point not working for extending Columns in sap.m.Table

Question

Hi Colleagues,
We are recently developing a UI5 application and we tried to extend the Fragments and views as per wiki.
Below is the code :
<core:View xmlns:l="sap.ui.layout" xmlns:core="sap.ui.core"
  xmlns="sap.m" controllerName="ui.s2p.srm.sourcingcockpit.view.S1">
  <Page id="page" class="marginBoxContent" showNavButton="true"
  navButtonTap="_navBack">
  <content>
  <l:Grid class="" defaultSpan="L12 M12 S12">
  <Table id="demandsTable" mode="MultiSelect" growing="true"
  updateFinished="handleUpdateFinished" growingFinished="onListLoad"
  growingThreshold="20" items="{/UnsourcedDemandCollection}">
  <columns>
  <Column id="col_sos" minScreenWidth="tablet" demandPopin="true">
  <Text text="{i18n>col_sos}" />
  </Column>
  <core:ExtensionPoint id="extDemandColumn">
  <Column id="col_attach" minScreenWidth="tablet"
  demandPopin="false" width="4%">
  <Text text="{i18n>col_attach}" visible="false" />
  </columns>
  <items>
  <ColumnListItem>
  <cells>
  <Link
  text="{parts:[{path:'ObjectID'}, {path:'NUMBER_INT'}],formatter:'.formatObjectIdNumberInt'}"
  wrapping="true" />
  <core:ExtensionPoint name='extDemandList' />
  <l:HorizontalLayout>
  <l:content>
  <core:Icon src="sap-icon://attachment">
  </core:Icon>
  <Text text="({AttachmentCount})" class="paddingRightLeft" />
  </l:content>
  </l:HorizontalLayout>
  </cells>
  </ColumnListItem>
  </items>
  </Table>
  </l:Grid>
  </content>
  </Page>
</core:View>
In the above code we have specified two extension points. While extending it through Component.js, extDemandList works fine, but extDemandColumn does not work.
Please let me know the way through which we can extend the columns in table and similarly formelements in FormContainer control.
Thanks in advance.
Best Regards,
Ankit Jain

Answer 1

I think you have defined 'id' instead of 'name' for the extDemandColumn
<core:ExtensionPoint id="extDemandColumn">
Regards,
Jason