jquery form plug-in jquery.form.js

Source: Internet
Author: User

Overview

JQuery Form Plugin allows you to simply upgrade a form submitted in HTML to a form submitted using AJAX technology.

The main methods in the plugin, Ajaxform and Ajaxsubmit, are able to gather information from the form component to determine how to handle the form's submission process.

Two methods support a wide range of optional parameters, allowing you to fully control the submission of data in the form.


Getting Started Guide


Write a form on your page. An ordinary form that does not require any special markup:

<form id= "MyForm" action= "login.action" method= "POST" > Name: <input type= "text" name= "name"/> mailbox: <input Type= "text" name= "email" ><input type= "Submit" value= "Commit"/></form>

second, introduce jquery and Jquery.form.js script files and add a few simple lines of code to let the page initialize the form after the DOM has finished loading:

<script type= "Text/javascript" src= "js/jquery-1.8.0.min.js" ></script><script type= "Text/javascript "Src=" js/jquery.form.js "></script>$ (function () {$ (' #myForm '). Ajaxform (function () {alert (" Submit success! ");})
This will be OK, when the form is submitted, the value of name and email will be presented to login.action. If the server side returns a successful state,

The user will see a message "Submit success!".


Form Plugin API

The form Plugin API provides a number of useful ways to easily process data and form submissions in a form.


Ajaxform

Preprocess the forms that will be submitted using AJAX, adding all the event listeners that need to be used. It is not submitted to this form.

Use Ajaxform in the Ready function of the page to prepare the Ajax submissions for the forms on your page.

Ajaxform requires 0 or one parameter. The only parameter can be a callback function or an optional parameter object.

$ (' #myFormId '). Ajaxform ();

Ajaxsubmit

Immediately submit the form via Ajax. The most common use is to invoke a user's action to submit a form when it responds.

Ajaxform requires 0 or one parameter. The only argument can be a callback function or an optional parameter object.

$ (' #myFormId '). Submit (function () {$ (this). Ajaxsubmit (function () {alert ("success!");}); return false; Block form default submission  });

formserialize

Serializes a form into a query string. This method returns a string of the form: Name1=value1&name2=value2.

var queryString = $ (' #myFormId '). Formserialize (); $.post (' login.action ', queryString);

Resetform

Resets the form to its original state by invoking a method on the inner dom of the form element.

$ (' #myFormId '). Resetform ();

ClearForm

Clears the value of all elements of the form. This method will erase all text boxes, password boxes, text fields, and remove all selected items from the drop-down list.

Leave all check boxes and selected items in the Radio box unchecked.

$ (' #myFormId '). ClearForm ();

Optional Parameter Item Object

Both Ajaxform and ajaxsubmit support a large number of optional parameters, which are passed in through an optional parameter item object.

The optional parameter item object is just a simple JavaScript object that contains properties and some values: specific parameters view official website API


code example

The following example shows basic common parameters and how to use a form to submit a callback function before and after.

<body><form id= "MyForm" action= "login.action" method= "POST" > Name: <input type= "text" name= "name"/> </br> Sex: <input type= "Radio" name= "Sex" value= "1" > Male <input type= "Radio" name= "Sex" value= "0" > Female </ br> Email: <input type= "text" name= "email" ></br></br><input type= "Submit" value= "Submit"/> </ Form></body><script type= "Text/javascript" >$ (function () {var options = {beforesubmit:showrequest,//  Pre-commit callback Success:showresponse,//After successful callback Clearform:true//After submission succeeds clear all form data//url:url//Overwrite the Action property value in form//type: Type//' get ' or ' post ', overriding the method property value in form//datatype:null//' xml ', ' script ', or ' json '};$ (' #myForm '). Submit (Funct Ion () {$ (this). Ajaxsubmit (options); return false;}) function Showrequest (FormData, Jqform, options) {var queryString = $.param (formData); Console.info (' The submitted data is: ' + queryString); return true;} function Showresponse (responsetext, statustext) {var s = eval ("(" +responsetext+ ")"); Console.info (s); Data returned from the background console.info (statustext);} </script>

Itmyhome

Example: http://download.csdn.net/detail/itmyhome/8374087


jquery form plug-in jquery.form.js

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