How to get dropdown selected id on ng-repeat in angular

Question

by using this code am able to get dropdown id(if i comment ng-repeat)

 

<tr @*ng-repeat="r in rvm"*@ @*>

<td>

<select ng-model="ID" ng-options="c.ID as c.Name for c in customer" ng-change="GetAccountBalance($index)" style="width:150px;height:22px;" name=" tCustomer">

<option value="">Select Customer</option>

</select>

 

 

js

$scope.GetAccountBalance = function (index) {

var getAccountBalance = ReceiptsService.GetAccountBalance($scope.ID);

var id = $scope.ID;

alert(id);

 

but my requirement is adding new row on dropdown change 

 

<tr ng-repeat="r in rvm">

<td>

<select ng-model="ID" ng-options="c.ID as c.Name for c in customer" ng-change="GetAccountBalance($index)" style="width:150px;height:22px;" name=" tCustomer">

<option value="">Select Customer</option>

</select>

 js

 

$scope.rvm = [{}];

$scope.GetAccountBalance = function (index) {

if ($scope.rvm.length == (index + 1)) {

$scope.rvm.push({

});

}

var getAccountBalance = ReceiptsService.GetAccountBalance($scope.ID);

var id = $scope.ID;

alert(id);

 

 

 

am able to add new row by using this code , but am not getting selected id

how to selected dropdown id,

if i remove ng repeat am getting id ,