Dev Wadhwa Dev Wadhwa - 11 months ago 53
AngularJS Question

How can I make ng-change to work for same values as well?

I am new to

. My problem is : I have a dropdown box and a textbox. I am selecting some value from the dropdown box and
fires and also the dropdown box get to its default value when some one starts typing in the textbox. Now after reset the dropdown if I again select the same value in dropdown which I selected previously then
not get fired.

I used
also for this but it doesnt work in all browsers then. I am stuck with this problem.

So is there any way make
to work on the same value as the previous one or some alternative?

Any help or solution will be greatly appreciated. Thanks in advance.

My Code Snippet :

<input class="form-control" type="text" id="city1" onblur="codeAddress();" name="city1" ng-model="city1" required>
<select class="form-control" id="brandC" name="brandC" ng-model="vehicle.companyId" ng-change="selectServiceCenter();" required>
<option ng-selected="loginbrandId1==null" value='' >Select Your Car</option>
<option ng-selected="loginbrandId1 == vehicle.companyId" ng-repeat="vehicle in vehiclenames" value='{{vehicle.companyId}},{{vehicle.vehicleID}}' >{{vehicle.companyName}}--{{vehicle.vehicleNumber}}</option>
$scope.watchHitCountcity = 0;
$scope.$watch('city1', function (newValue, oldValue) {

document.getElementById("brandC").value= "";
$scope.selectServiceCenter = function() {

Answer Source

Reason behind your problem

What's happening in your case is you just removed the value from the dropdown using native java script document.getElementById("brandC").value= "";,but this doesn't change the value of ng-model of that element which is ng-model="vehicle.companyId".Because the ng-model of the dropdown has not changed the ng-change="selectServiceCenter();" function doesn't gets triggered as for angular still the ng-model is the same.


So change your below code like below as suggested by @Sandeep

$scope.vehicle ={}; //create vehicle object in scope..
$scope.$watch('city1', function (newValue, oldValue) {

        if(newValue!=undefined && newValue!=oldValue){
             $scope.vehicle.companyId = null;