The Select Boxes in AngularJS can be utilized to create dropdown lists, that are based on the objects or an array. The Select box can be created in 2 ways, i.e., either by using the ng-options directive that is used to build and bind HTML elements with options to model property or by using the ng-repeat directive that is used to repeat a set of HTML code for a number of times or once per item in a collection of items, & is mostly used on arrays and objects.
We will understand both the approaches for creating the Select box in AngularJS with the help of examples.
ng-options: For creating a dropdown list based on array items, it will be preferred to use ng-options directives. This directive is mainly used for filling a dropdown list with options.
Example 1: This example illustrates the creation of the select box using the ng-options directive.
HTML
<!DOCTYPE html>
< html >
< head >
< script src =
</ script >
< style >
body {
text-align: center;
font-family: sans-serif;
}
h1 {
color: green;
}
</ style >
</ head >
< body >
< h1 style = "color:green" >GeeksforGeeks</ h1 >
< h3 >ng-option Directive</ h3 >
< div ng-app = "gfg" ng-controller = "myCtrl" >
< p >Select the item from the List:</ p >
< select ng-model = "selectedName"
ng-options = "x for x in names" >
</ select >
</ div >
< p >Dropdown List.</ p >
< script >
var app = angular.module('gfg', []);
app.controller('myCtrl', function ($scope) {
$scope.names =
["Programming",
"DSA",
"Competitive Programming"];
});
</ script >
</ body >
</ html >
|
Output:
ng-repeat: We can implement the same dropdown list using the ng-repeat directive. Dropdowns from the ng-repeat need to be an array. This directive can be used to call multiple times to repeat the block of HTML code for each item in an array.
Example 2: This example describes the creation of the Selection box using the ng-repeat directive.
HTML
<!DOCTYPE html>
< html >
< head >
< script src =
</ script >
< style >
body {
text-align: center;
font-family: sans-serif;
}
h1 {
color: green;
}
</ style >
</ head >
< body >
< h1 >GeeksforGeeks</ h1 >
< h3 >ng-repeat Directive</ h3 >
< div ng-app = "gfg" ng-controller = "myCtrl" >
< select >
< option ng-repeat = "x in names" >
{{x}}
</ option >
</ select >
</ div >
< p >Dropdown List.</ p >
< script >
var app = angular.module('gfg', []);
app.controller('myCtrl', function ($scope) {
$scope.names = ["DSA",
"Programming Language",
"Competitive Programming"];
});
</ script >
</ body >
</ html >
|
Output:
Last Updated :
06 Jan, 2023
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