I have been delving into the advanced features of AngularJS, particularly custom directives. My goal is to implement a textbox that can accept either numbers only or text only based on the user's selection from a dropdown menu. I successfully created a custom directive for allowing numbers only, following guidance from AngularJs Custom Directive fails the text box validation. However, I am facing an issue with dynamically applying another custom directive for text-only input and replacing the number-only directive.
<body>
<div ng-app="TextboxExample" ng-controller="ExampleController">
<form name="shippingForm" novalidate>
<select id="textBoxOptions" >
<option value="number" selected="selected">Numbers Only</option>
<option value="text">Text Only</option>
<option value="special">Special Characters</option>
<option value="any">Any Value</option>
</select>
<input id="customTextBox" unbindable number-only-input type="text" name="name" ng-model="testvalue.number" required />
<span class="error" ng-show="shippingForm.name.$error.required">
Please enter a value
</span>
</form>
</div>
<script src="scripts/angular.js"></script>
<script src="scripts/jquery.min.js"></script>
<script>
$("select").change(function () {
var selected = $("#textBoxOptions").val();
$('#customTextBox').attr("ng-model", selected);
});
</script>
<script>
angular.module('TextboxExample', [])
.controller('ExampleController', ['$scope', function ($scope) {
$scope.testvalue = { number: 1, validity: true };
}])
.directive('numberOnlyInput', ['$compile', function ($compile) {
return {
link: function (scope, element, attrs) {
var watchMe = attrs["ngModel"];
scope.$watch(watchMe, function (newValue, oldValue) {
if (newValue == undefined || newValue == null || newValue == "") {
return;
} else if (isNaN(newValue)) {
var myVal = watchMe.split(".");
switch (myVal.length) {
case 1:
scope[myVal[0]] = oldValue;
break;
case 2:
scope[myVal[0]][myVal[1]] = oldValue;
}
}
$compile(element)(scope);
});
}
};
}]);
</script>
Although I am able to change the ng-model on customTextBox when the dropdown value changes, I am unsure how to implement and apply multiple directives simultaneously. Any suggestions would be greatly appreciated. Thank you.