Reputation: 655
How would I go about adding the capability in the form so that the user can add more input fields by clicking the "Add". This using the angular formly library.
Here is an example of the exact feature but done using only angularjs.
Adding form fields dynamically
Upvotes: 23
Views: 26468
Reputation: 87
Simple example works also deleting in any order:
http://plnkr.co/edit/c0FbjBJkHtDYRKslz0iq?p=preview
or:
some html:
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.4/angular.min.js"></script>
<script src="script.js"></script>
</head>
<body ng-app="oneApp" ng-controller="ctrl">
<button ng-click="addNewRow()">Add row</button>
<table>
<tr ng-repeat="row in tablerows track by $id(row)">
<td ng-model="tablerows[$index]">
<input>
</td>
<td>
<button ng-click="removeRow($index)" type="button">
Delete
</button>
<td>
</tr>
</table>
</body>
</html>
script.js:
var app = angular.module('oneApp', []);
app.controller('ctrl', function($scope){
$scope.tablerows = [];
$scope.addNewRow = function () {
var row_id;
var tablerows = $scope.tablerows;
if(tablerows.length > 0){
row_id = tablerows[tablerows.length-1];
row_id = row_id +1;
}else{
row_id = 0;
}
$scope.tablerows.push(row_id);
};
$scope.removeRow = function (index) {
$scope.tablerows.splice(index,1);
};
}
);
Upvotes: 0
Reputation: 17299
I put simple example.
var app = angular.module("app",[]);
app.controller("MyCtrl" , function($scope){
$scope.data ={
names:[{ name:""}]
};
$scope.addRow = function(index){
var name = {name:""};
if($scope.data.names.length <= index+1){
$scope.data.names.splice(index+1,0,name);
}
};
$scope.deleteRow = function($event,name){
var index = $scope.data.names.indexOf(name);
if($event.which == 1)
$scope.data.names.splice(index,1);
}
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="app" ng-controller="MyCtrl">
<table>
<tr ng-repeat="name in data.names track by $index">
<td> <input type="text" ng-model="data.names[$index].name"></td>
<td> <input type="button" ng-click="addRow($index)" value="Add" ng-show="$last"></td>
<td> <input type="button" ng-click="deleteRow($event,name)" value="Delete" ng-show="$index != 0"></td>
</tr>
</table>
<span>{{data|json}}</span>
</div>
Upvotes: 11
Reputation: 222
Here is an example of what you need. As you can see in the plunker, there is a TextArea
which can be created dynamically on button click. The created TextAreas
can also be removed with the remove
button click.
See the HTML below
<div class="col-sm-10">
<input type="button" class="btn btn-info" ng-click="addNewChoice()" value="ADD QUESTION">
<div class="col-sm-4">
<fieldset data-ng-repeat="field in choiceSet.choices track by $index">
<textarea rows="4" cols="50" ng-model=" choiceSet.choices[$index]"></textarea>
<button type="button" class="btn btn-default btn-sm" ng-click="removeChoice($index)">
<span class="glyphicon glyphicon-minus"></span> REMOVE
</button>
</fieldset>
</div>
</div>
and the JS will be as below
var app = angular.module('myApp', []);
app.controller('inspectionController', function($scope, $http) {
$scope.choiceSet = {
choices: []
};
$scope.quest = {};
$scope.choiceSet.choices = [];
$scope.addNewChoice = function() {
$scope.choiceSet.choices.push('');
};
$scope.removeChoice = function(z) {
$scope.choiceSet.choices.splice(z, 1);
};
});
Upvotes: 16