angular js select default value not working

Question

I am having problem with setting default for my select list. Any help on this would be appreciated. I looked at the other similar posts but the solutions are not seem to be working in my case.

I populate $scope.series in the controller. and then the drop down seems to be populating as well but it is not setting the default value.

<select name="repeatSelect" id="repeatSelect"
                            ng-init="selectedItem = series[0].code"
                            ng-model="selectedItem"
                            ng-options="serie.name for serie in series track by serie.code"
                            ng-change="update()"></select>

here is the json:

[
    {
        "code": "code1",
        "name": "name 1",
    },
    {
        "code": "code2",
        "name": "name 2",
    }
]

Following is the controller

angular.module("myApp", [])
.controller('myController', function ($scope, dataService) {
    dataService.getSeries(function (response) {
        $scope.series = response.data;
        console.log(response.data);
    })});

Where dataService is the service to get json file from $http get.

This is considered bad practice to use ngInit this way. Just set the value in the controller. This might also fix your issue. — Matthew Green
– Matthew Green, Commented Dec 11, 2015 at 20:50
BTW, also don't initialize the selectedItem to series[0].code, but to series[0], since that's what the ng-model contains. — JB Nizet
– JB Nizet, Commented Dec 11, 2015 at 20:51

Pankaj Parkar · Accepted Answer · 2015-12-11 20:50:39Z

2

You had ng-init which tries to evaluate expression when there was no value in series, because the ajax for it doesn't return the value yet.

So you need to set the ng-model value in ajax success instead of ng-init

Markup

<select name="repeatSelect" id="repeatSelect"
   ng-model="selectedItem"
   ng-options="serie.name for serie in series"
   ng-change="update()">
</select>

Code

angular.module("myApp", [])
.controller('myController', function ($scope, dataService) {
    dataService.getSeries(function (response) {
        $scope.series = response.data;
        $scope.selectedItem = $scope.series[0].code; //setting ng-model after getting data
        console.log(response.data);
    });
});

answered Dec 11, 2015 at 20:50

Pankaj Parkar

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Comments

hss · Accepted Answer · 2015-12-11 20:50:55Z

0

seems like adding this code to controller did the trick and no need to have ng-init as well.:

$scope.selectedItem = { code: $scope.series[0].code, name: $scope.series.name };

answered Dec 11, 2015 at 20:50

hss

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