ng-options with disabled rows - angularjs

Question

Is it possible to use ng-options that it will render into disabled rows based on criteria?
this:
<select ng-options="c.name group by c.shade for c in colors">
maybe possible to turn into something like this:
<select ng-options="c.name group by c.shade for c in colors | disabled(c.shade)">
and let's say via a filter that could return disabled='disabled' for all the colors that have shade = "dark"
<select>
<optgroup label="dark">
<option value="0" disabled="disabled">black</option>
<option value="2" disabled="disabled">red</option>
<option value="3" disabled="disabled">blue</option>
</optgroup>
<optgroup label="light">
<option value="1">white</option>
<option value="4">yellow</option>
</optgroup>
</select>

Answer 1

#lucuma's answer (originally the accepted answer) was correct, but by now should be updated, because this was fixed in Angular 1.4. See the docs of ng-options which also contains an example.
I'm using Angular 1.5 and this works for me:
View
<select ng-model="$ctrl.selectedItem" ng-options="item as item.label disable when item.disabled for item in $ctrl.listItems">
Controller
vm.items = [
{ id: 'optionA', label: 'Option A' },
{ id: 'optionB', label: 'Option B (recommended)' },
{ id: 'optionC', label: 'Option C (Later)', disabled: true }
];
vm.selectedItem = vm.items[1];

Answer 2

As pointed by #Lod Angular added support for this in 1.4.0-beta.5.
For angular js >= 1.4.0-beta.5.
<select ng-options="c.name disable when c.shade == 'dark'
group by c.shade for c in colors">
And for angular js < 1.4.0-beta.5 refer the solution below:
Similar to the one given by #lucuma but without jQuery dependency.
Check this http://jsfiddle.net/dZDLg/46/
Controller
<div ng-controller="OptionsController">
<select ng-model="selectedport"
ng-options="p.name as p.name for p in ports"
options-disabled="p.isinuse for p in ports"></select>
<input ng-model="selectedport">
</div>
Directive
angular.module('myApp', [])
.directive('optionsDisabled', function($parse) {
var disableOptions = function(scope, attr, element, data,
fnDisableIfTrue) {
// refresh the disabled options in the select element.
var options = element.find("option");
for(var pos= 0,index=0;pos<options.length;pos++){
var elem = angular.element(options[pos]);
if(elem.val()!=""){
var locals = {};
locals[attr] = data[index];
elem.attr("disabled", fnDisableIfTrue(scope, locals));
index++;
}
}
};
return {
priority: 0,
require: 'ngModel',
link: function(scope, iElement, iAttrs, ctrl) {
// parse expression and build array of disabled options
var expElements = iAttrs.optionsDisabled.match(
/^\s*(.+)\s+for\s+(.+)\s+in\s+(.+)?\s*/);
var attrToWatch = expElements[3];
var fnDisableIfTrue = $parse(expElements[1]);
scope.$watch(attrToWatch, function(newValue, oldValue) {
if(newValue)
disableOptions(scope, expElements[2], iElement,
newValue, fnDisableIfTrue);
}, true);
// handle model updates properly
scope.$watch(iAttrs.ngModel, function(newValue, oldValue) {
var disOptions = $parse(attrToWatch)(scope);
if(newValue)
disableOptions(scope, expElements[2], iElement,
disOptions, fnDisableIfTrue);
});
}
};
});
Note: This solution doesn't work with group by as rightly pointed by everyone. Refer the solution below by #DHlavaty if you are looking to make it work with group by.

Answer 3

Angular added support for this in 1.4.0-beta.5
<select ng-options="c.name disable when c.shade == 'dark' group by c.shade for c in colors">

Answer 4

I do not believe there is a way to do what you are asking just using ng-options. This issue was raised on the angular project and is still open:
https://github.com/angular/angular.js/issues/638
It seems that the work around is to use a directive which is referenced here and in the github issue: http://jsfiddle.net/alalonde/dZDLg/9/
Here is the entire code from the jsfiddle for reference (the code below is from alande's jsfiddle):
<div ng-controller="OptionsController">
<select ng-model="selectedport"
ng-options="p.name as p.name for p in ports"
options-disabled="p.isinuse for p in ports"></select>
<input ng-model="selectedport">
</div>
angular.module('myApp', [])
.directive('optionsDisabled', function($parse) {
var disableOptions = function(scope, attr, element, data, fnDisableIfTrue) {
// refresh the disabled options in the select element.
$("option[value!='?']", element).each(function(i, e) {
var locals = {};
locals[attr] = data[i];
$(this).attr("disabled", fnDisableIfTrue(scope, locals));
});
};
return {
priority: 0,
require: 'ngModel',
link: function(scope, iElement, iAttrs, ctrl) {
// parse expression and build array of disabled options
var expElements = iAttrs.optionsDisabled.match(/^\s*(.+)\s+for\s+(.+)\s+in\s+(.+)?\s*/);
var attrToWatch = expElements[3];
var fnDisableIfTrue = $parse(expElements[1]);
scope.$watch(attrToWatch, function(newValue, oldValue) {
if(newValue)
disableOptions(scope, expElements[2], iElement, newValue, fnDisableIfTrue);
}, true);
// handle model updates properly
scope.$watch(iAttrs.ngModel, function(newValue, oldValue) {
var disOptions = $parse(attrToWatch)(scope);
if(newValue)
disableOptions(scope, expElements[2], iElement, disOptions, fnDisableIfTrue);
});
}
};
});
function OptionsController($scope) {
$scope.ports = [{name: 'http', isinuse: true},
{name: 'test', isinuse: false}];
$scope.selectedport = 'test';
}

Answer 5

A similar effect can be achieved using ng-repeat and ng-disabled on the option itself, avoiding the use of a new directive.
HTML
<div ng-controller="ExampleController">
<select ng-model="myColor">
<option ng-repeat="c in colors" ng-disabled="c.shade=='dark'" value="{{$index}}">
{{c.name}}
</option>
</select>
</div>
Controller
function ExampleController($scope, $timeout) {
$scope.colors = [
{name:'black', shade:'dark'},
{name:'white', shade:'light'},
{name:'red', shade:'dark'},
{name:'blue', shade:'dark'},
{name:'yellow', shade:'light'}
];
$timeout(function() {
$scope.myColor = 4; // Yellow
});
}
Fiddle
http://jsfiddle.net/0p4q3b3s/
Known issues:
Does not use ng-options
Does not work with group by
Selects the index, not the object
Requires $timeout for initial selection
Edit :
Any object property can be selected (besides the index), but not the object itself. Also, if you have a simple array and not an array of objects, below method will work.
Change this line in HTML :
<option ng-repeat="c in colors" ng-disabled="c.shade=='dark'" value="{{c.name}}">
Change this line in Controller :
$scope.myColor = $scope.colors[4].name; // Yellow

Answer 6

Since February 2015 there has been a way to disable options in your ng-options tag.
This Link shows the addition of the feature on github
I found that using angular 1.4.7, the syntax had changed from 'disable by' to 'disable when'.
The syntax for this is:
'ng-options': 'o.value as o.name disable when o.unavailable for o in options'

Answer 7

I had an interesting situation. An array of dropdowns and I need it to disable the options that were already selected in each of the dropdowns, but I also need it to keep enable the one that was selected already...
here is my plunker: Enable/Disable values with ng-options
var app = angular.module('ngoptions', []);
app.controller('MainCtrl', function($scope) {
// disable the fields by default
$scope.coverage = [
{ CoverageType: '', CoverageName: 'No Coverage' },
{ CoverageType: 'A', CoverageName: 'Dependent Only' },
{ CoverageType: 'B', CoverageName: 'Employee Plus Children' },
{ CoverageType: 'C', CoverageName: 'Employee Only' },
{ CoverageType: 'D', CoverageName: 'Employee Plus One' },
{ CoverageType: 'E', CoverageName: 'Employee Plus Two' },
{ CoverageType: 'F', CoverageName: 'Family' },
];
// values already set ex: pulled from db
$scope.rates = ['A','C', 'F'];
$scope.changeSelection = function (index, rate){
$scope.rates[index] = rate;
disableRecords();
}
// start by disabling records
disableRecords();
function disableRecords () {
// set default values to false
angular.forEach($scope.coverage, function (i, x) {
i.disable = false;
});
// set values to true if they exist in the array
angular.forEach($scope.rates, function (item, idx) {
angular.forEach($scope.coverage, function (i, x) {
if (item == i.CoverageType) {
i.disable = true;
}
});
});
}
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.21/angular.min.js"></script>
<!DOCTYPE html>
<html ng-app="ngoptions">
<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<script data-require="angular.js#1.4.7" data-semver="1.4.7" src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.7/angular.js"></script>
<script>document.write('<base href="' + document.location + '" />');</script>
<link rel="stylesheet" href="style.css" />
<script src="app.js"></script>
</head>
<body ng-controller="MainCtrl">
<table>
<thead></thead>
<tbody>
<tr ng-repeat="rate in rates">
<td>
<select
ng-model="rate"
ng-change="changeSelection($index, rate)"
ng-options="type.CoverageType as type.CoverageName disable when (type.disable == true && type.CoverageType != rate) for type in coverage"></select>
</td>
</tr>
</tbody>
</table>
</body>
</html>

Answer 8

You can disable using ngOptions in angular 1.4.1 or above
HTML template
<div ng-app="myapp">
<form ng-controller="ctrl">
<select id="t1" ng-model="curval" ng-options='reportingType.code as reportingType.itemVal disable when reportingType.disable for reportingType in reportingOptions'>
<option value="">Select Report Type</option>
</select>
</form>
Controller code
angular.module('myapp',[]).controller("ctrl", function($scope){
$scope.reportingOptions=[{'code':'text','itemVal':'TEXT','disable':false}, {'code':'csv','itemVal':'CSV','disable':true}, {'code':'pdf','itemVal':'PDF','disable':false}];
})

Answer 9

Similar "without jQuery" solution as #Vikas-Gulati's, but it works with group by
In my case, group by doesn't work, because my first <option> was without value, just with Please select and item from dropdown text. This is a slightly modified version, that fixes this particular situation:
Usage is simmilar to #Vikas-Gulati answer: https://stackoverflow.com/a/20790905/1268533
Directive
angular.module('disabledModule', [])
.directive('optionsDisabled', function($parse) {
var disableOptions = function(scope, attr, element, data, fnDisableIfTrue) {
var realIndex = 0;
angular.forEach(element.find("option"), function(value, index){
var elem = angular.element(value);
if(elem.val()!="") {
var locals = {};
locals[attr] = data[realIndex];
realIndex++; // this skips data[index] with empty value (IE first <option> with 'Please select from dropdown' item)
elem.attr("disabled", fnDisableIfTrue(scope, locals));
}
});
};
return {
priority: 0,
require: 'ngModel',
link: function(scope, iElement, iAttrs, ctrl) {
// parse expression and build array of disabled options
var expElements = iAttrs.optionsDisabled.match(/^\s*(.+)\s+for\s+(.+)\s+in\s+(.+)?\s*/);
var attrToWatch = expElements[3];
var fnDisableIfTrue = $parse(expElements[1]);
scope.$watch(attrToWatch, function(newValue, oldValue) {
if(newValue)
disableOptions(scope, expElements[2], iElement, newValue, fnDisableIfTrue);
}, true);
// handle model updates properly
scope.$watch(iAttrs.ngModel, function(newValue, oldValue) {
var disOptions = $parse(attrToWatch)(scope);
if(newValue)
disableOptions(scope, expElements[2], iElement, disOptions, fnDisableIfTrue);
});
}
};
});

Answer 10

As I cannot upgrade to latest angularJS, so created a simpler directive to handle it.
.directive('allowDisabledOptions',['$timeout', function($timeout) {
return function(scope, element, attrs) {
var ele = element;
var scopeObj = attrs.allowDisabledOptions;
$timeout(function(){
var DS = ele.scope()[scopeObj];
var options = ele.children();
for(var i=0;i<DS.length;i++) {
if(!DS[i].enabled) {
options.eq(i).attr('disabled', 'disabled');
}
}
});
}
}])
for more details: https://github.com/farazshuja/disabled-options

Answer 11

I also hid disabled options adding fallowing line:
$(this).css("display", fnDisableIfTrue(scope, locals) ? "none" : "block");
It was necessary as I couldn't simply filter them out, as the initial value of this select could be one of the disabled options.