I've created an angularJS select box which will filter the results in a table based on the selected value in the select box.
Now, the select box is created using an object 'user['location']' which has locations as keys.
Also, I'm grabbing the default user location '${city}' as soon as the page is loaded, passing it on to my select box, and filter the results accordingly in the table.
If the user's current location doesn't match any of the options in my select box, then no filter should be applied!
For e.g., if the user location is 'London', since there's nothing like in 'London' in my object, it should select the first option - 'Select City'.
But currently it is creating an empty string like <option value= "? string:London ?"></option> above that and is selecting it!
How, do fix it?
Here's my code:
HTML:
<select class="form-control" ng-model="user.loc" ng-init="user.loc = '${city}'">
<option value="" ng-selected="!checkKey(user.loc)">Select City</option>
<option value="{{key}}" ng-selected="key == user.loc" ng-repeat="(key, value) in user['location']">{{key}}</option>
</select>
JS:
$scope.user['location'] = {Sydney: 5, Hong Kong : 7, NYC : 3, Toronto: 1};
$scope.checkKey = function(loc) {
if(loc in $scope.user['location']){
return true;
} else {
return false;
}
};
I think I understand what you are trying to do here. But instead of checking the values using checkKey, you can do it once when your controller is loaded.
Also, you can leverage ngOptions to render available options in the select box.
angular.module('myapp', [])
.controller('myctrl', function($scope) {
$scope.user = {};
$scope.user['location'] = {
'Sydney': 5,
'Hong Kong': 7,
'NYC': 3,
'Toronto': 1
};
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="myapp" ng-controller="myctrl">
<select class="form-control" ng-model="user.loc" ng-init="user.loc = user.location['London']" ng-options="value as key for (key, value) in user.location">
<option value="">Select City</option>
</select>
</div>
You can change ng-init with your own value, as you were doing, and it should work fine with it.
Ok, I tried this and it worked!
<select class="form-control" ng-model="user.loc">
<option value="" ng-selected="!checkKey(user.loc)">Select City</option>
<option value="{{key}}" ng-selected="key == '${city}'" ng-repeat="(key, value) in user['location']">{{key}}</option>
</select>
There are a couple of questions and answers around this topic here, but I cannot find a solution which is working the way it should be for my case.
Just imagine I have an object like this
$scope.person = {name: 'Peter', category1: null, category2: null};
In a different variable I receive a list of categories via a $resource call with a result like this:
$scope.categories = [{id:1, name:'Supplier'}, {id:2, name:'Customer'}];
Now it's easy to build a select with ng-options to choose from categories to set the selected category.id as person.category1 or person.category2.
But how can I do that when category1 is mandatory while category2 can still be a valid null value?
So basically what I am looking for now are two selects with the following options:
//Select1
- Select Category1 (disabled)
- Customer (value: 1)
- Supplier (value: 2)
//Select2
- Select Category2 (disabled)
- No Category (value: null)
- Customer (value: 1)
- Supplier (value: 2)
EDIT
I added a Plunkr based on #Mistalis answer, which shows what I want to achieve: Each select should have a disabled placeholder option and one should support a "valid null option".
You can add an option (null) to your select with the following:
<select ng-model="categ.selected" ng-options="c.name for c in categories">
<option value="">No category</option>
</select>
Demo on Plunker
categ.selected can be default set to null in your controller if needed:
$scope.categ = {"selected": null};
Update from comment:
It seems you can't hard-code 2 options in a ng-options, so I suggest you to push the "No category" option in categories in your controller:
$scope.categories.push({id:null, name:'No category', noCat:'true'});
Note the noCat: 'true' that will be used to be not displayed on the first select.
Now your HTML becomes:
<select ng-model="person.category1"
ng-options="c.id as c.name for c in categories | filter: {noCat: '!true'}">
<option value="" disabled>Select Category 1</option>
</select>
<select ng-model="person.category2" ng-options="c.id as c.name for c in categories">
<option value="" disabled>Select Category 2</option>
</select>
New Plunker
If you need to validate form with angular's form controller, you can't use empty value, it won't be considered as valid. You have to use (int)0 instead.
<select ng-model="person.category1" ng-options="category.id as category.name for category in categories | filter: {id: '!' + 0}" required>
<option value="">Select Category 1</option>
</select>
<select placeholder="Select Category 2" ng-model="person.category2" ng-options="category.id as category.name for category in categories" required>
<option value="">Select Category 2</option>
</select>
If you want to make Select Category options to be unavailable to select at all (like a placholder), then add disabled attribute to <option>
Here is jsfiddle with your example.
I have searched Google and can't find anything on this.
I have this code.
<select ng-model="somethingHere"
ng-options="option.value as option.name for option in options"
></select>
With some data like this
options = [{
name: 'Something Cool',
value: 'something-cool-value'
}, {
name: 'Something Else',
value: 'something-else-value'
}];
And the output is something like this.
<select ng-model="somethingHere"
ng-options="option.value as option.name for option in options"
class="ng-pristine ng-valid">
<option value="?" selected="selected"></option>
<option value="0">Something Cool</option>
<option value="1">Something Else</option>
</select>
How is it possible to set the first option in the data as the default value so you would get a result like this.
<select ng-model="somethingHere" ....>
<option value="0" selected="selected">Something Cool</option>
<option value="1">Something Else</option>
</select>
You can simply use ng-init like this
<select ng-init="somethingHere = options[0]"
ng-model="somethingHere"
ng-options="option.name for option in options">
</select>
If you want to make sure your $scope.somethingHere value doesn't get overwritten when your view initializes, you'll want to coalesce (somethingHere = somethingHere || options[0].value) the value in your ng-init like so:
<select ng-model="somethingHere"
ng-init="somethingHere = somethingHere || options[0].value"
ng-options="option.value as option.name for option in options">
</select>
Try this:
HTML
<select
ng-model="selectedOption"
ng-options="option.name for option in options">
</select>
Javascript
function Ctrl($scope) {
$scope.options = [
{
name: 'Something Cool',
value: 'something-cool-value'
},
{
name: 'Something Else',
value: 'something-else-value'
}
];
$scope.selectedOption = $scope.options[0];
}
Plunker here.
If you really want to set the value that will be bound to the model, then change the ng-options attribute to
ng-options="option.value as option.name for option in options"
and the Javascript to
...
$scope.selectedOption = $scope.options[0].value;
Another Plunker here considering the above.
Only one answer by Srivathsa Harish Venkataramana mentioned track by which is indeed a solution for this!
Here is an example along with Plunker (link below) of how to use track by in select ng-options:
<select ng-model="selectedCity"
ng-options="city as city.name for city in cities track by city.id">
<option value="">-- Select City --</option>
</select>
If selectedCity is defined on angular scope, and it has id property with the same value as any id of any city on the cities list, it'll be auto selected on load.
Here is Plunker for this:
http://plnkr.co/edit/1EVs7R20pCffewrG0EmI?p=preview
See source documentation for more details:
https://code.angularjs.org/1.3.15/docs/api/ng/directive/select
I think, after the inclusion of 'track by', you can use it in ng-options to get what you wanted, like the following
<select ng-model="somethingHere" ng-options="option.name for option in options track by option.value" ></select>
This way of doing it is better because when you want to replace the list of strings with list of objects you will just change this to
<select ng-model="somethingHere" ng-options="object.name for option in options track by object.id" ></select>
where somethingHere is an object with the properties name and id, of course. Please note, 'as' is not used in this way of expressing the ng-options, because it will only set the value and you will not be able to change it when you are using track by
The accepted answer use ng-init, but document says to avoid ng-init if possible.
The only appropriate use of ngInit is for aliasing special properties
of ngRepeat, as seen in the demo below. Besides this case, you should
use controllers rather than ngInit to initialize values on a scope.
You also can use ng-repeat instead of ng-options for your options. With ng-repeat, you can use ng-selected with ng-repeat special properties. i.e. $index, $odd, $even to make this work without any coding.
$first is one of the ng-repeat special properties.
<select ng-model="foo">
<option ng-selected="$first" ng-repeat="(id,value) in myOptions" value="{{id}}">
{{value}}
</option>
</select>
---------------------- EDIT ----------------
Although this works, I would prefer #mik-t's answer when you know what value to select, https://stackoverflow.com/a/29564802/454252, which uses track-by and ng-options without using ng-init or ng-repeat.
This answer should only be used when you must select the first item without knowing what value to choose. e.g., I am using this for auto completion which requires to choose the FIRST item all the time.
My solution to this was use html to hardcode my default option. Like so:
In HAML:
%select{'ng-model' => 'province', 'ng-options' => "province as province for province in summary.provinces", 'chosen' => "chosen-select", 'data-placeholder' => "BC & ON"}
%option{:value => "", :selected => "selected"}
BC & ON
In HTML:
<select ng-model="province" ng-options="province as province for province in summary.provinces" chosen="chosen-select" data-placeholder="BC & ON">
<option value="" selected="selected">BC & ON</option>
</select>
I want my default option to return all values from my api, that's why I have a blank value. Also excuse my haml. I know this isn't directly an answer to the OP's question, but people find this on Google. Hope this helps someone else.
Use below code to populate selected option from your model.
<select id="roomForListing" ng-model="selectedRoom.roomName" >
<option ng-repeat="room in roomList" title="{{room.roomName}}" ng-selected="{{room.roomName == selectedRoom.roomName}}" value="{{room.roomName}}">{{room.roomName}}</option>
</select>
Depending on how many options you have, you could put your values in an array and auto-populate your options like this
<select ng-model="somethingHere.values" ng-options="values for values in [5,4,3,2,1]">
<option value="">Pick a Number</option>
</select>
In my case, I was need to insert a initial value only to tell to user to select an option, so, I do like the code below:
<select ...
<option value="" ng-selected="selected">Select one option</option>
</select>
When I tryed an option with the value != of an empty string (null) the option was substituted by angular, but, when put an option like that (with null value), the select apear with this option.
Sorry by my bad english and I hope that I help in something with this.
Using select with ngOptions and setting a default value:
See the ngOptions documentation for more ngOptions usage examples.
angular.module('defaultValueSelect', [])
.controller('ExampleController', ['$scope', function($scope) {
$scope.data = {
availableOptions: [
{id: '1', name: 'Option A'},
{id: '2', name: 'Option B'},
{id: '3', name: 'Option C'}
],
selectedOption: {id: '2', name: 'Option B'} //This sets the default value of the select in the ui
};
}]);
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.5.0-rc.0/angular.min.js"></script>
<body ng-app="defaultValueSelect">
<div ng-controller="ExampleController">
<form name="myForm">
<label for="mySelect">Make a choice:</label>
<select name="mySelect" id="mySelect"
ng-options="option.name for option in data.availableOptions track by option.id"
ng-model="data.selectedOption"></select>
</form>
<hr>
<tt>option = {{data.selectedOption}}</tt><br/>
</div>
plnkr.co
Official documentation about HTML SELECT element with angular data-binding.
Binding select to a non-string value via ngModel parsing / formatting:
(function(angular) {
'use strict';
angular.module('nonStringSelect', [])
.run(function($rootScope) {
$rootScope.model = { id: 2 };
})
.directive('convertToNumber', function() {
return {
require: 'ngModel',
link: function(scope, element, attrs, ngModel) {
ngModel.$parsers.push(function(val) {
return parseInt(val, 10);
});
ngModel.$formatters.push(function(val) {
return '' + val;
});
}
};
});
})(window.angular);
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.5.0-rc.1/angular.min.js"></script>
<body ng-app="nonStringSelect">
<select ng-model="model.id" convert-to-number>
<option value="1">One</option>
<option value="2">Two</option>
<option value="3">Three</option>
</select>
{{ model }}
</body>
plnkr.co
Other example:
angular.module('defaultValueSelect', [])
.controller('ExampleController', ['$scope', function($scope) {
$scope.availableOptions = [
{ name: 'Apple', value: 'apple' },
{ name: 'Banana', value: 'banana' },
{ name: 'Kiwi', value: 'kiwi' }
];
$scope.data = {selectedOption : $scope.availableOptions[1].value};
}]);
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.5.0-rc.0/angular.min.js"></script>
<body ng-app="defaultValueSelect">
<div ng-controller="ExampleController">
<form name="myForm">
<select ng-model="data.selectedOption" required ng-options="option.value as option.name for option in availableOptions"></select>
</form>
</div>
</body>
jsfiddle
This worked for me.
<select ng-model="somethingHere" ng-init="somethingHere='Cool'">
<option value="Cool">Something Cool</option>
<option value="Else">Something Else</option>
</select>
In response to Ben Lesh's answer, there should be this line
ng-init="somethingHere = somethingHere || options[0]"
instead of
ng-init="somethingHere = somethingHere || options[0].value"
That is,
<select ng-model="somethingHere"
ng-init="somethingHere = somethingHere || options[0]"
ng-options="option.name for option in options track by option.value">
</select>
In my case since the default varies from case to case in the form.
I add a custom attribute in the select tag.
<select setSeletected="{{data.value}}">
<option value="value1"> value1....
<option value="value2"> value2....
......
in the directives I created a script that checks the value and when angular fills it in sets the option with that value to selected.
.directive('setSelected', function(){
restrict: 'A',
link: (scope, element, attrs){
function setSel=(){
//test if the value is defined if not try again if so run the command
if (typeof attrs.setSelected=='undefined'){
window.setTimeout( function(){setSel()},300)
}else{
element.find('[value="'+attrs.setSelected+'"]').prop('selected',true);
}
}
}
setSel()
})
just translated this from coffescript on the fly at least the jist of it is correct if not the hole thing.
It's not the simplest way but get it done when the value varies
Simply use ng-selected="true" as follows:
<select ng-model="myModel">
<option value="a" ng-selected="true">A</option>
<option value="b">B</option>
</select>
This working for me
ng-selected="true"
I would set the model in the controller. Then the select will default to that value. Ex:
html:
<select ng-options="..." ng-model="selectedItem">
Angular controller (using resource):
myResource.items(function(items){
$scope.items=items;
if(items.length>0){
$scope.selectedItem= items[0];
//if you want the first. Could be from config whatever
}
});
If you are using ng-options to render you drop down than option having same value as of ng-modal is default selected.
Consider the example:
<select ng-options="list.key as list.name for list in lists track by list.id" ng-model="selectedItem">
So option having same value of list.key and selectedItem, is default selected.
I needed the default “Please Select” to be unselectable. I also needed to be able to conditionally set a default selected option.
I achieved this the following simplistic way:
JS code:
// Flip these 2 to test selected default or no default with default “Please Select” text
//$scope.defaultOption = 0;
$scope.defaultOption = { key: '3', value: 'Option 3' };
$scope.options = [
{ key: '1', value: 'Option 1' },
{ key: '2', value: 'Option 2' },
{ key: '3', value: 'Option 3' },
{ key: '4', value: 'Option 4' }
];
getOptions();
function getOptions(){
if ($scope.defaultOption != 0)
{ $scope.options.selectedOption = $scope.defaultOption; }
}
HTML:
<select name="OptionSelect" id="OptionSelect" ng-model="options.selectedOption" ng-options="item.value for item in options track by item.key">
<option value="" disabled selected style="display: none;"> -- Please Select -- </option>
</select>
<h1>You selected: {{options.selectedOption.key}}</h1>
I hope this helps someone else that has similar requirements.
The "Please Select" was accomplished through Joffrey Outtier's answer here.
If you have some thing instead of just init the date part, you can use ng-init() by declare it in your controller, and use it in the top of your HTML.
This function will work like a constructor for your controller, and you can initiate your variables there.
angular.module('myApp', [])
.controller('myController', ['$scope', ($scope) => {
$scope.allOptions = [
{ name: 'Apple', value: 'apple' },
{ name: 'Banana', value: 'banana' }
];
$scope.myInit = () => {
$scope.userSelected = 'apple'
// Other initiations can goes here..
}
}]);
<body ng-app="myApp">
<div ng-controller="myController" ng-init="init()">
<select ng-model="userSelected" ng-options="option.value as option.name for option in allOptions"></select>
</div>
</body>
<!--
Using following solution you can set initial
default value at controller as well as after change option selected value shown as default.
-->
<script type="text/javascript">
function myCtrl($scope)
{
//...
$scope.myModel=Initial Default Value; //set default value as required
//..
}
</script>
<select ng-model="myModel"
ng-init="myModel= myModel"
ng-options="option.value as option.name for option in options">
</select>
try this in your angular controller...
$somethingHere = {name: 'Something Cool'};
You can set a value, but you are using a complex type and the angular will search key/value to set in your view.
And, if does not work, try this :
ng-options="option.value as option.name for option in options track by option.name"
I think the easiest way is
ng-selected="$first"
In Angular.JS, is there a way to bind two different ng-models when a select drop down option is selected?
Angular code:
<select ng-model="vm.data.styleId" ng-options="item.id as item.name for item in vm.getStylesData.styles">
<option value="">Select a Style</option>
</select>
Results in:
<option value="{{item.id}}">{{item.name}}</option>
With the Angular code I have so far, when an option is selected, it will save the option's value to the ng-model. In this case item.id is bound to vm.data.styleId.
However in addition to this, I also need to bind the 'item.name' of the selected option. Basically, when an option is selected, I need to bind both the item.id to vm.data.styleId, and the item.name to vm.data.name.
Is there an easy way to do this using Angular.JS?
Solution (using the answer from lisa p.):
In the View:
<select ng-model="vm.styleItem" ng-change="vm.getDetails()" ng-options="item as item.name for item in vm.getStylesData.styles">
<option value="">Select a Style</option>
</select>
Inside the controller:
vm.getDetails = function () {
// set the values of the select drop down
vm.data.styleId = vm.styleItem.id;
vm.data.style = vm.styleItem.name;
}
You can bind to an object containing both values like
item = { styleId: 23, name: "the name" }
vm.data = {{ styleId: ..., name: ... }}
then you bind to vm.data with
<option value="{{item}}">{{item.name}}</option>
Controller
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
$scope.vm.data.styleId = "";
$scope.item = {id : '1', name : 'name'};
});
html
<div ng-controller="myCtrl">
<select ng-model="vm.data.styleId" ng-options="item.id as item.name for item in vm.getStylesData.styles">
<option value="{{item}}">{{item.name}}</option>
</select>
</div>
Make an object which holds both id and name and pass that object as value to option
I have a multi select dropdown that functions as appropriate when setting values, but once set, I need to display what has been selected in an update form. My values are stored in a DB (SharePoint) accessible over REST. Here is an example REST output with multiple IDs of my array:
"CatId": [
18,
80,
84
],
Here is my select function, including retrieving the variable from REST:
var currentCatValue = results.CatId;
$scope.categoryValues = [];
appCatList.query(function (categorydata) {
var categoryValues = categorydata.value; // Data is within an object of "value", so this pushes the server side array into the $scope array
// Foreach type, push values into types array
angular.forEach(categoryValues, function (categoryvalue, categorykey) {
$scope.categoryValues.push({
label: categoryvalue.Title,
value: categoryvalue.ID,
});
})
var currentDetailIndex = $scope.categoryValues.map(function (e) { return e.value; }).indexOf(currentCatValue);
$scope.vm.selectedCategory = $scope.categoryValues[currentDetailIndex];
});
Here is my HTML:
<select class="form-control" id="Event_Cat" data-ng-model="vm.selectedCategory"
data-ng-options="opt as opt.label for opt in categoryValues | orderBy:'label'" required>
<option style="display:none" value="">Select a Category</option>
</select>
EDIT: Using id (inspired by yvesmancera) in ng-model would greatly reduce the complexity - You don't need to pre-process your options and input array anymore, just plug it in and done!
<select multiple ng-model="currentCatValue" ng-options="opt.ID as opt.Title for opt in categoryValues">
$scope.currentCatValue = currentCatValue;
$scope.categoryValues = categoryValues;
Note: normally we would pre-populate ng-options into an array to preserve the order of the options, if the original data is an object. But since you use orderBy, you can use the object directly as ng-options.
fiddle
Outdated:
You need to point to the same object in ng-options for them to get selected on load.
$scope.categoryValues = [];
$scope.vm.selectedCategory = [];
angular.forEach(categoryValues, function (categoryvalue, categorykey) {
var category = {
label: categoryvalue.Title,
value: categoryvalue.ID,
}
$scope.categoryValues.push(category);
if (currentCatValue.indexOf(parseInt(category.value)) != -1) {
$scope.vm.selectedCategory.push(category);
}
});
Try changing your ng-options to something like:
<select class="form-control" id="Event_Cat" data-ng-model="vm.selectedCategory" data-ng-options="opt.id as opt.label for opt in categoryValues | orderBy:'label'" required>
<option style="display:none" value="">Select a Category</option>
</select>
And make this line change in your controller:
$scope.vm.selectedCategory = $scope.categoryValues[currentDetailIndex].id;
Edit for multiple selection:
<select class="form-control" id="Event_Cat" data-ng-model="selectedCategoriesIds" data-ng-options="opt.id as opt.label for opt in categoryValues | orderBy:'label'" required multiple>
<option style="display:none" value="">Select a Category</option>
</select>
In your controller, add the items you want selected to $scope.selectedCategoriesIds e.g.:
$scope.selectedCategoriesIds = [];
$scope.selectedCategoriesIds.push('18');
$scope.selectedCategoriesIds.push('80');