溫馨提示×
您好，登錄后才能下訂單哦！
點擊 登錄注冊 即表示同意《億速云用戶服務條款》
您好，登錄后才能下訂單哦！
這篇文章主要為大家展示了“angular如何實現form驗證”，內容簡而易懂，條理清晰，希望能夠幫助大家解決疑惑，下面讓小編帶領大家一起研究并學習一下“angular如何實現form驗證”這篇文章吧。
先上效果頁面：
其中幾個知識點
1、angularJs提供了幾個新的type類型：
type="password" type="email" type="number" type="url"
2、幾個參數含義
ng-required //是否必填，true/false
ng-minlength //最小長度，數字
ng-maxlength //最大長度，數字
min //最小數字，數字，僅在type="number"下
max //最小數字，數字，僅在type="number"
3、幾個form控制變量，先來一段代碼
<form role="form" name="myform" > <div class="form-group" > <label class="col-sm-2">用戶名</label> <div class="col-sm-8"> <input type="text" name="username" class="form-control" placeholder="請輸入用戶名"></div> </div> </form>
formName.inputFieldName.$pristine //字段是否未更改,對應上面的html代碼即為 myform.username.$pristine formName.inputFieldName.$dirty //字段是否更改,對應上面的html代碼即為 myform.username.$dirty formName.inputFieldName.$valid //字段有效,對應上面的html代碼即為 myform.username.$valid formName.inputFieldName.$invalid //字段無效,對應上面的html代碼即為 myform.username.$invalid formName.inputFieldName.$error //字段錯誤信息，使用頻率比較高,對應上面的html代碼即為 myform.username.$error
4、下面直接上代碼，首先是html代碼，使用了bootstrap.css樣式，在結尾引入了angular
<!DOCTYPE html>
<html>
<head>
<title>form驗證</title>
<link rel="stylesheet" type="text/css" href="style/bootstrap.css">
</head>
<body ng-app="formModule">
<div >
<form role="form" name="myform" class="form-horizontal container" ng-controller="formctrl">
<!-- 用戶名 -->
<div class="form-group" ng-class="{'has-error':myform.username.$dirty && myform.username.$invalid}">
<label class="col-sm-2">用戶名</label>
<div class="col-sm-8">
<input type="text" name="username" ng-minlength="5" ng-maxlength="10" ng-required="true" ng-model="data.username" class="form-control" placeholder="請輸入用戶名"></div>
<div class="col-sm-2 text-danger" ng-show="myform.username.$error.minlength">用戶名必須大于5位</div>
<div class="col-sm-2" ng-show="myform.username.$error.maxlength">用戶名必須小于于10位</div>
</div>
<!-- 密碼 -->
<div class="form-group" ng-class="{'has-error':myform.password.$dirty&&myform.password.$invalid}">
<label class="col-sm-2">密 碼</label>
<div class="col-sm-8">
<input type="password" name="password" ng-minlength="10" ng-required="true" ng-model="data.password" class="form-control" placeholder="請輸入密碼"></div>
<div class="col-sm-2 text-danger" ng-show="myform.password.$error.minlength">密碼必須大于10位</div>
</div>
<!-- 確認密碼 -->
<div class="form-group" ng-class="{'has-error':myform.passwordconfirm.$dirty&&myform.passwordconfirm.$invalid}">
<label class="col-sm-2">確認密碼</label>
<div class="col-sm-8">
<input type="password" name="passwordconfirm" ng-required="true" ng-model="data.passwordconfirm" class="form-control" placeholder="請輸入確認密碼"></div>
<div class="col-sm-2 text-danger" ng-show="data.passwordconfirm!=data.password&&myform.password.$dirty&&myform.passwordconfirm.$dirty">兩次密碼不一致</div>
</div>
<!-- 郵箱 -->
<div class="form-group" ng-class="{'has-error':myform.email.$dirty&&myform.email.$invalid}">
<label class="col-sm-2">郵 箱</label>
<div class="col-sm-8">
<input type="email" name="email" ng-required="true" ng-model="data.email" class="form-control" placeholder="請輸入郵箱地址"></div>
<div class="col-sm-2 text-danger" ng-show="myform.email.$error.email">請輸入正確郵箱地址</div>
</div>
<!-- 博客 -->
<div class="form-group" ng-class="{'has-error':myform.age.$dirty&&myform.age.$invalid}">
<label class="col-sm-2">年 齡</label>
<div class="col-sm-8">
<input type="number" name="age" ng-required="true" min="10" max="99" ng-model="data.age" class="form-control" placeholder="請輸入您的年齡"></div>
<div class="col-sm-2 text-danger" ng-show="myform.age.$error.min&&myform.age$error.max">請輸入正確年齡</div>
</div>
<!-- 年齡 -->
<div class="form-group" ng-class="{'has-error':myform.blog.$dirty&&myform.blog.$invalid}">
<label class="col-sm-2">博 客</label>
<div class="col-sm-8">
<input type="url" name="blog" ng-required="true" ng-model="data.blog" class="form-control" placeholder="請輸入博客地址"></div>
<div class="col-sm-2 text-danger" ng-show="myform.blog.$error.url">請輸入正確博客地址</div>
</div>
<!-- 性別 -->
<div class="form-group">
<label class="col-sm-2">性 別</label>
<div class="col-sm-8">
<label class="radio-inline">
<input type="radio" value="1" ng-model="data.sex" name="sex"> 男</label>
<label class="radio-inline">
<input type="radio" value="2" ng-model="data.sex" name="sex"> 女</label>
</div>
</div>
<!-- 愛好 -->
<div class="form-group">
<label class="col-sm-2">愛 好</label>
<div class="col-sm-8">
<label ng-repeat="hoppy in hoppies" class="checkbox-inline">
<input type="checkbox" name="hoppy[]" ng-click="togglehoppy()" ng-model="hoppy.checked" >{{hoppy.name}}
</label>
</div>
<div class="col-sm-2">{{data.Ahoppy.join('、')}}</div>
</div>
<!-- 地址 -->
<div class="form-group">
<label class="col-sm-2">地 址</label>
<div class="col-sm-3">
<select class="form-control" ng-model="data.provinec" ng-options="x.id as x.name for x in cities | cityfilter:0"></select>
</div>
<div class="col-sm-3">
<select class="form-control" ng-show="data.provinec" ng-model="data.area" ng-options="x.id as x.name for x in cities | cityfilter:data.provinec"></select>
</div>
<div class="col-sm-3">
<select class="form-control" ng-show="data.area" ng-model="data.city" ng-options="x.id as x.name for x in cities | cityfilter:data.area"></select>
</div>
</div>
</form>
</div>
<script src="js/angular.js"></script>
<script src="js/app.js"></script>
</body>
</html>下面為js代碼（可能其中有些不妥之處，請指正，謝謝）
(function(window) {
'use strict';
var mymodule = angular.module('formModule', []);
// 城市刪選器
mymodule.filter('cityfilter',function(){
return function(data,parent){
var cityData=[];
angular.forEach(data, function(item, key){
if(item.parent==parent){
cityData.push(item);
}
});
return cityData;
}
});
mymodule.controller('formctrl', ['$scope', function($scope) {
// 設定初始狀態
$scope.data={
Ahoppy:[1,3]
}
// 愛好對象
$scope.hoppies = [
{id: 1,name: '玩游戲',checked: istrue(1)},
{id: 2,name: '吃飯',checked: false},
{id: 3,name: '睡覺',checked: false},
{id: 4,name: '玩游戲',checked: true}
];
// 城市
$scope.cities=[
{name:'河南',parent:0,id:1},
{name:'鄭州',parent:1,id:2},
{name:'鄭東新區',parent:2,id:3},
{name:'金水區',parent:2,id:4},
{name:'二七區',parent:2,id:5},
{name:'信陽',parent:1,id:6},
{name:'商城',parent:6,id:7},
{name:'羅山',parent:6,id:8},
{name:'杭州',parent:0,id:9},
{name:'西湖區',parent:9,id:10},
{name:'余杭區',parent:9,id:11},
{name:'蕭山區',parent:9,id:12},
{name:'上城區',parent:9,id:13},
];
// 判斷是否是選中狀態
function istrue(id){
for(var i=0;i<$scope.data.Ahoppy.length;i++){
if($scope.data.Ahoppy[i]===id){
return true;
}
}
return false;
};
// 獲取選中的愛好
$scope.togglehoppy = function() {
$scope.data.Ahoppy = [];
angular.forEach($scope.hoppies, function(item, key) {
if (item.checked == true) {
$scope.data.Ahoppy.push(item.id);
}
});
}
}])
})(window)以上是“angular如何實現form驗證”這篇文章的所有內容，感謝各位的閱讀！相信大家都有了一定的了解，希望分享的內容對大家有所幫助，如果還想學習更多知識，歡迎關注億速云行業資訊頻道！
免責聲明：本站發布的內容（圖片、視頻和文字）以原創、轉載和分享為主，文章觀點不代表本網站立場，如果涉及侵權請聯系站長郵箱：is@yisu.com進行舉報，并提供相關證據，一經查實，將立刻刪除涉嫌侵權內容。
