angularjs - How to bind the Id of a select box selection -

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I have a select box that displays GeoAreaName, to populate the input field I have selected GeoAreaId the wanted. I have done something similar with type Ahead input but I am unable to apply it here 

  & lt; Label & gt; Geographic & amp; Nbsp; Region: & lt; / Labels & gt; & Lt; Ng-Select Controller = "JobMiscCtrl" ng-model = "currentItem.GeoAreaName" ng-option = "Job. GeoAreaArray for Job GeoAreaName" & gt; & Lt; Option value = "" & gt; & Lt; / Options & gt; & Lt; / Select & gt; & Lt; Input type = "number" ng-model = "present itam.goariaid" />    
 
 
 I have edited your plunker  
 You had two problems.  
     
  •  Your input field was outside the scope of your NG-controller declaration  
  •  
     Your nG-option expression should be slightly different   & lt; Select ng-model = "currentItem" ng-option = "job.GeoAreaId jobs. GeoAreaNrame for job in GeoAreaArray" & gt; & Lt; Option value = "" & gt; & Lt; / Options & gt; & Lt; / Select & gt;

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