Setting default value in select drop-down using Angularjs

Question

I have an object as below. I have to display this as a drop-down:

var list = [{id:4,name:\"abc\"},{id:600,name:\"def\"},{id:200,name:\"xyz\"}]

Answer 1

$scope.item = {
    "id": "3",
    "name": "ALL",
};

$scope.CategoryLst = [
    { id: '1', name: 'MD' },
    { id: '2', name: 'CRNA' },
    { id: '3', name: 'ALL' }];

<select ng-model="item.id" ng-selected="3" ng-options="i.id as i.name for i in CategoryLst"></select>

Answer 2

Problem 1:

The generated HTML you're getting is normal. Apparently it's a feature of Angular to be able to use any kind of object as value for a select. Angular does the mapping between the HTML option-value and the value in the ng-model. Also see Umur's comment in this question: How do I set the value property in AngularJS' ng-options?

Problem 2:

Make sure you're using the following ng-options:

<select ng-model="object.item" ng-options="item.id as item.name for item in list" />

And put this in your controller to select a default value:

object.item = 4

Answer 3

we should use name value pair binding values into dropdown.see the code for more details

function myCtrl($scope) {
     $scope.statusTaskList = [
        { name: 'Open', value: '1' },
        { name: 'In Progress', value: '2' },
        { name: 'Complete', value: '3' },
        { name: 'Deleted', value: '4' },
    ];
    $scope.atcStatusTasks = $scope.statusTaskList[0]; // 0 -> Open 
}

<select ng-model="atcStatusTasks" ng-options="s.name for s in statusTaskList"></select>

Answer 4

This is an old question and you might have got the answer already.

My plnkr explains on my approach to accomplish selecting a default dropdown value. Basically, I have a service which would return the dropdown values [hard coded to test]. I was not able to select the value by default and almost spend a day and finally figured out that I should have set $scope.proofGroupId = "47"; instead of $scope.proofGroupId = 47; in the script.js file. It was my bad and I did not notice that I was setting an integer 47 instead of the string "47". I retained the plnkr as it is just in case if some one would like to see. Hopefully, this would help some one.

Answer 5

When you use ng-options to populate a select list, it uses the entire object as the selected value, not just the single value you see in the select list. So in your case, you'd need to set

$scope.object.setDefault = {
    id:600,
    name:"def"
};

or

$scope.object.setDefault = $scope.selectItems[1];

I also recommend just outputting the value of $scope.object.setDefault in your template to see what I'm talking about getting selected.

<pre>{{object.setDefault}}</pre>

Answer 6

I could help you out with the html:

<option value="">abc</option>

instead of

<option value="4">abc</option>

to set abc as the default value.