MVC | SQL | JQUERY | HTML5 | CSS3 | C# | JAVASCRIPT

Data-binding in Angular apps is the automatic synchronization of data between the model and view components.

Data binding lets you treat the model as the single-source-of-truth in your application. The view is a projection of the model at all times. If the model is changed, the view reflects the change and vice versa.

----------------------------

<!DOCTYPE html>

<html>

<body>

<h2>Cost Calculator</h2>

Quantity: <input type="number" ng-model="quantity">

Price: <input type="number" ng-model="price">

<p><b>Total in rupees:</b> {{quantity * price}}</p>

</div>

</body>

</html>

-----------------

Output:- if you will run above code you will get two number boxes and once you will set the value of quantity and price you will get output based on input number like below.

Total in rupees: 20

Html page:--

<div ng-app="myapp">
<form name="myform" class="form form-horizontal" ng-controller="myappCtrl" novalidate>
<legend>Angular User Validation with Bootstrap Decorations</legend>
<div class="control-group" ng-class="{error:!myform.username.$valid}">
<label for="inputUsername" class="control-label">Username:</label>
<div class="controls">
<input type="text" id="inputUsername" name="username" ng-model="username" valid-username />
<div class="help-inline">
<span ng-show="!!myform.username.$error.isBlank">Username Required.</span>
<span ng-show="!!myform.username.$error.invalidChars">Username must contain letters & spaces only.</span>
<span ng-show="!!myform.username.$error.invalidLen">Username must be 5-20 characters.</span>
</div>
</div>
</div>
<div class="control-group" ng-class="{error:!myform.password.$valid}">
<label for="inputPassword" class="control-label">Password:</label>
<div class="controls">
<input type="text" id="inputPassword" name="password" ng-model="password" valid-password />
<div class="help-inline">
<span ng-show="!!myform.password.$error.isBlank">Password Required.</span>
<span ng-show="!!myform.password.$error.isWeak">Must contain one upper & lower case letter and a non-letter (number or symbol.)</span>
<span ng-show="!!myform.password.$error.invalidLen">Must be 8-20 characters.</span>
</div>
</div>
</div>
<div class="control-group" ng-class="{error:!myform.password_c.$valid}">
<label for="password_c" class="control-label">Confirm Password:</label>
<div class="controls">
<input type="text" id="password_c" name="password_c" ng-model="password_c" valid-password-c />
<div class="help-inline">
<span ng-show="!!myform.password_c.$error.isBlank">Confirmation Required.</span>
<span ng-show="!!myform.password_c.$error.noMatch">Passwords don't match.</span>
</div>
</div>
</div>
<div class="form-actions" ng-show="formAllGood()">
<input type="submit" class="btn btn-primary" value="Submit" />
</div>
</form></div>
----------------------------------------------------------------
JavaScript.Js :--

var app = angular.module('myapp', ['UserValidation']);

myappCtrl = function($scope) {
$scope.formAllGood = function () {
return ($scope.usernameGood && $scope.passwordGood && $scope.passwordCGood)
}

}

angular.module('UserValidation', []).directive('validUsername', function () {
return {
require: 'ngModel',
link: function (scope, elm, attrs, ctrl) {
ctrl.$parsers.unshift(function (viewValue) {
// Any way to read the results of a "required" angular validator here?
var isBlank = viewValue === ''
var invalidChars = !isBlank && !/^[A-z0-9]+$/.test(viewValue)
var invalidLen = !isBlank && !invalidChars && (viewValue.length < 5 || viewValue.length > 20)
ctrl.$setValidity('isBlank', !isBlank)
ctrl.$setValidity('invalidChars', !invalidChars)
ctrl.$setValidity('invalidLen', !invalidLen)
scope.usernameGood = !isBlank && !invalidChars && !invalidLen

})
}
}
}).directive('validPassword', function () {
return {
require: 'ngModel',
link: function (scope, elm, attrs, ctrl) {
ctrl.$parsers.unshift(function (viewValue) {
var isBlank = viewValue === ''
var invalidLen = !isBlank && (viewValue.length < 8 || viewValue.length > 20)
var isWeak = !isBlank && !invalidLen && !/(?=.*[a-z])(?=.*[A-Z])(?=.*[^a-zA-Z])/.test(viewValue)
ctrl.$setValidity('isBlank', !isBlank)
ctrl.$setValidity('isWeak', !isWeak)
ctrl.$setValidity('invalidLen', !invalidLen)
scope.passwordGood = !isBlank && !isWeak && !invalidLen

})
}
}
}).directive('validPasswordC', function () {
return {
require: 'ngModel',
link: function (scope, elm, attrs, ctrl) {
ctrl.$parsers.unshift(function (viewValue, $scope) {
var isBlank = viewValue === ''
var noMatch = viewValue != scope.myform.password.$viewValue
ctrl.$setValidity('isBlank', !isBlank)
ctrl.$setValidity('noMatch', !noMatch)
scope.passwordCGood = !isBlank && !noMatch
})
}
}
})
-----------------------------------------------------

Referece library :--https://netdna.bootstrapcdn.com/twitter-bootstrap/2.2.2/css/bootstrap-combined.min.css

MVC | SQL | JQUERY | HTML5 | CSS3 | C# | JAVASCRIPT | QUSTIONS AND ANSWERS

Shop Fast, Shop Easy

Sunday, 31 July 2016

Two-Way Data Binding in agnularJs

Sunday, 19 June 2016

Angular User Validation with Bootstrap Decorations

Total Pageviews