jQuery plug-in jQuery.Form.js usage example analysis (with demo sample source code)_jquery

The example in this article describes the usage of jQuery.Form.js of jQuery plug-in. Share it with everyone for your reference, the details are as follows:

1. The jQuery.Form.js plug-in is used to implement Ajax submission forms.

Method:

1.formSerilize() is used to serialize the data in the form and automatically organize it into a URL address format suitable for AJAX asynchronous requests.

2.clearForm() Clears the contents of all input values ​​in the form.

3.restForm Reset all field contents in the form. That is, restore all fields in the form to their default values ​​when the page loads.

Question: The difference between ajaxForm() and ajaxSubmit():

Answer: $("#form1").ajaxForm(); is equivalent to the following two lines:

$("#form1".submit)(function(){
 $("#form1").ajaxSubmit();
return false;
})

That is to say, ajaxFrom() will automatically prevent form submission. AjaxSubmit() will not automatically prevent form submission. If you want to prevent form submission, you must return false;

Tip 1: If you want to avoid jumping after the form submission is completed, then a simple line of code can achieve it, which is almost the same as not using form submission:

$("#MailForm").ajaxSubmit(function(message) {
  alert("表单提交已成功!");
});

Note:Both ajaxForm() and ajaxForm() can have no parameters or accept 1 parameter. This parameter can be either a callback function or an options object. This object is very powerful and is described as follows:

var options={
 url:url, //form提交数据的地址
 type:type, //form提交的方式(method:post/get)
 target:target, //服务器返回的响应数据显示在元素(Id)号确定
 beforeSubmit:function(), //提交前执行的回调函数
 success:function(), //提交成功后执行的回调函数
 dataType:null, //服务器返回数据类型
 clearForm:true, //提交成功后是否清空表单中的字段值
 restForm:true, //提交成功后是否重置表单中的字段值，即恢复到页面加载时的状态
 timeout:6000 //设置请求时间，超过该时间后，自动退出请求，单位(毫秒)。
}

Example:

Page js code:

<script src="jQuery.1.8.3.js" type="text/javascript"></script>
<script src="jQuery.Form.js" type="text/javascript"></script>
<script type="text/javascript">
$(function () {
  $(":submit").click(function () {
    var options = {
      url: "indexAjax.aspx",
      target: "#div2",
      success: function () {
        alert("ajax请求成功");
      }
    };
    $("#form1").ajaxForm(options);
  })
})
</script>

Page HTML code:

<div id="div1">
<form id="form1" method="get" action="#">
  <p>我的名字：<input type="text" name="name" value="请输入内容" /></p>
  <p>我的偶像是：<input type="radio" name="Idol" value="刘德华" />刘德华  <input type="radio" name="Idol" value="张学友" />张学友</p>
  <p>我喜欢的音乐类型：<input type="checkbox" name="musictype" value="1.摇滚">摇滚 <input type="checkbox" name="musictype" value="2.轻松">轻柔 <input type="checkbox" name="musictype" value="3.爵士">爵士</p>
  <p><input type="submit" value="确认" /></p>
</form>
</div>
<div id="div2">
</div>

Backend: indexAjax.aspx.cs code

protected void Page_Load(object sender, EventArgs e)
{
  string strName = Request["name"];
  string strIdol = Request["Idol"];
  string strMusicType = Request["musictype"];
  Response.Clear();
  Response.Write("我的名字是：" + strName + ";  我的偶像是：" + strIdol + ";  我喜欢的音乐类型：" + strMusicType);
  Response.End();
}

Click here for sample codeDownload from this site.

For more jQuery plug-in usage, you can also refer to the relevant topics on this site : "Summary of jQuery common plug-ins and usage".

I hope this article will be helpful to everyone in jQuery programming.