http://www.vaikan.com/docs/jquery.form.plugin/jquery.form.plugin.html#getting-started
Jquery.Form 异步提交表单实例
http://www.aqee.net/docs/jquery.form.plugin/jquery.form.plugin.html#getting-started
1. 在你的页面里写一个表单。一个普通的表单，不需要任何特殊的标记：
<form id="myForm" method="post" action="/Home/AjaxForm">
<div>
Name:<input id="username" name="username" type="text" />
Password:<input id="password" name="password" type="text" />
<br />
<input type="submit" value="submit async" id="lnkSubmit" />
</div>
</form>
在没有Jquery.Form组件的时候，提交表单，页面会进入阻塞模式，等待服务器端的响应。
2. 引入jQuery和Form Plugin Javascript脚本文件并且添加几句简单的代码让页面在DOM加载完成后初始化表单：
<head>
<script type="text/javascript" src="path/to/jquery.js"></script>
<script type="text/javascript" src="path/to/form.js"></script>
<script type="text/javascript">
// wait for the DOM to be loaded
$(document).ready(function() {
// bind 'myForm' and provide a simple callback function // 为myform绑定ajaxForm异步提交事件，并提供一个简单的回调函数。
$('#myForm').ajaxForm(function() {
alert("Thank you for your comment!");
});
});
</script>
</head>加上jquery.form组件后，提交表单时，页面不会再同步提交，而是由js做异步提交，因此提交后页面不会有刷新。3. 加入能够与服务器端进行交互的回调函数。|
1
|
$(document).ready(function () { |
//options是一个ajaxForm的配置对象。|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
|
var options = { //target: '#output1', // target element(s) to be updated with server response //beforeSubmit: showRequest, // pre-submit callback <font color="#ff0000"> success: callBackFunc // post-submit callback</font> // other available options: //url: url // override for form's 'action' attribute //type: type // 'get' or 'post', override for form's 'method' attribute //dataType: null // 'xml', 'script', or 'json' (expected server response type) //clearForm: true // clear all form fields after successful submit //resetForm: true // reset the form after successful submit // $.ajax options can be used here too, for example: //timeout: 3000 }; // bind form using 'ajaxForm' $('#myForm').ajaxForm(options);}); |
|
1
|
// responseText是服务端的响应值。statusText是页面 |
|
1
2
3
4
5
|
// 提交状态值，success表示成功。function callBackFunc(responseText, statusText) { if (statusText == 'success') { alert(responseText); } |
|
1
|
else{ |
|
1
|
alert(“服务端错误！”); |
|
1
2
|
}} |
|
1
|
如果返回的是json数据则回调函数可以这么写 |
|
1
2
3
4
5
6
7
8
9
10
11
12
13
|
function resultFunction(responseText,statusText) { if (statusText == 'success') { if (responseText.code == 1) { alert(responseText.message); } else { alert('error occurs!'); } } else { alert('服务器错误！'); } } |
服务端的代码如下
|
1
2
3
4
5
6
7
|
[HttpPost]public ActionResult AjaxForm(FormCollection form){ string message = "Name:" + form["username"] + " PWD: "+form["password"] ; //return Content(message); return Json(new { code = 1, message = message });} |
4. 加入提交前的数据校验函数
为options对象添加 beforeSubmit属性
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
|
var options = { //target: '#output1', // target element(s) to be updated with server response <font color="#ff0000">beforeSubmit: checkData, // pre-submit callback </font> success: callBackFunc // post-submit callback // other available options: //url: url // override for form's 'action' attribute //type: type // 'get' or 'post', override for form's 'method' attribute //dataType: null // 'xml', 'script', or 'json' (expected server response type) //clearForm: true // clear all form fields after successful submit //resetForm: true // reset the form after successful submit // $.ajax options can be used here too, for example: //timeout: 3000 }; |
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
|
// pre-submit callback function checkData(formData, jqForm, options) { // formData is an array; here we use $.param to convert it to a string to display it // but the form plugin does this for you automatically when it submits the data //var queryString = $.param(formData); // jqForm is a jQuery object encapsulating the form element. To access the // DOM element for the form do this: var formElement = jqForm[0]; //alert('About to submit:
' + queryString); // here we could return false to prevent the form from being submitted; // returning anything other than false will allow the form submit to continue //return true; if ($(formElement).find("#username").val() == "") { alert("please enter username!"); return false; } else { return true; } } |
验证用户名是否为空，是则提示输入，并取消表单提交。