$count parameter from an EntitySet

Question

Hallo everybody,
today I spent the whole day to find a soution to get acces to the $count parameter from an existing SAP NetWeaver Gateway service and the associated entitySet. Up to now it doesn't work....
The $count parameter is reachable under following link:
http:/...../sap/opu/odata/sap/ZXXPUR_UI5_APP_GY_MONITOR_SRVreportsSET/$count
Here is the response:
I tried to use this parameter to use it for an "count" parameter for an IconTabFilter.
<IconTabFilter icon="sap-icon://time-entry-request" id="backgroundJobsTab"
  text="Backgroundjobs" design="Horizontal">
<content>
</IconTabFilter>
And here is my sourcecode to get / bind the parameter to the count parameter from the IconTabFilter:
var countData = new String("0");
var cURL = this.getUrl("/sap/opu/odata/sap/ZXXPUR_UI5_APP_GY_MONITOR_SRV/reportsSET/$count");
  $.get( cURL, function(data) {
  console.log(data);
  console.log(countData);
  countData= new String(data);
  console.log(countData);
  }, "text")
oIconTabFilter = this.getView().byId("backgroundJobsTab");
oIconTabFilter.setCount(countData);
Here is a picture from the debug mode / developer tools from Googe Chrome:
So normally I get back an string "12". But why it get not displayed / set for the count parameter ?
Many thanks
Dominik

Answer 1

The countData is not generated when you set it to IconTabFilter. The get request you do is asynchronous, so do something like this
oIconTabFilter = this.getView().byId("backgroundJobsTab"); 
$.get( cURL, function(data) { 
console.log(data); 
  console.log(countData); 
  countData= new String(data); 
  console.log(countData); 
oIconTabFilter.setCount(countData);
  }, "text")  ;