<input name="firstname" type="text" ng-model="firstName" required>
<input name="lastname" type="text" ng-model="lastName" required>
<input name="email" type="email" ng-model="email" required>
<button ng-click="reset()">Reset</button>
<script>
  function studentController($scope) { 
   $scope.reset = function(){
     $scope.firstName = "Mahesh";
     $scope.lastName = "Parashar";
     $scope.email = "MaheshParashar@yiibai.com";
 }  
  $scope.reset();
}
</script>

驗證數據

可使用下面跟蹤誤差。

$dirty - 規(guī)定值已被改變。

$invalid- 該值的狀態(tài)是無效的。

$error- 指出確切的錯誤。

例子

下面的例子將展示上述所有指令。

testAngularJS.html

<html>
<head>
<title>Angular JS Forms</title>
<style>
table, th , td {
 border: 1px solid grey;
 border-collapse: collapse;
 padding: 5px;
}
table tr:nth-child(odd) {
 background-color: #f2f2f2;
}
table tr:nth-child(even) {
 background-color: #ffffff;
}
</style>
</head>
<body>
<h2>AngularJS Sample Application</h2>
<div ng-app="" ng-controller="studentController">
<form name="studentForm" novalidate>
<table border="0">
<tr><td>Enter first name:</td><td><input name="firstname" type="text" ng-model="firstName" required>
  <span style="color:red" ng-show="studentForm.firstname.$dirty && studentForm.firstname.$invalid">
   <span ng-show="studentForm.firstname.$error.required">First Name is required.</span>
  </span>
</td></tr>
<tr><td>Enter last name: </td><td><input name="lastname" type="text" ng-model="lastName" required>
  <span style="color:red" ng-show="studentForm.lastname.$dirty && studentForm.lastname.$invalid">
   <span ng-show="studentForm.lastname.$error.required">Last Name is required.</span>
  </span>
</td></tr>
<tr><td>Email: </td><td><input name="email" type="email" ng-model="email" length="100" required>
<span style="color:red" ng-show="studentForm.email.$dirty && studentForm.email.$invalid">
   <span ng-show="studentForm.email.$error.required">Email is required.</span>
	 <span ng-show="studentForm.email.$error.email">Invalid email address.</span>
  </span>
</td></tr>
<tr><td><button ng-click="reset()">Reset</button></td><td><button 
	ng-disabled="studentForm.firstname.$dirty && studentForm.firstname.$invalid ||
			 studentForm.lastname.$dirty && studentForm.lastname.$invalid ||
			 studentForm.email.$dirty && studentForm.email.$invalid"
	ng-click="submit()">Submit</button></td></tr>
</table>
</form>
</div>
<script>
function studentController($scope) { 
  $scope.reset = function(){
		$scope.firstName = "Mahesh";
		$scope.lastName = "Parashar";
		$scope.email = "MaheshParashar@yiibai.com";
  }  
  $scope.reset();
}
</script>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.2.15/angular.min.js"></script>
</body>
</html>

輸出

在Web瀏覽器打開textAngularJS.html?？吹浇Y果如下。