自己做的一个小dome。贴出来分享一下；
前端：
<form id="formfile" method="post" enctype="multipart/form-data"><input type="file" name="FileUpload1" /><br /><input type="button" value="上传" οnclick="tpFace()"></form>
JS：
<script src="~/js/MyAjaxForm.js"></script> function tpFace() {$("#formfile").ajaxSubmit({url: "/admin/SubmitFrom",type: "post",success: function (data) {}});}
后台代码：
[HttpPost]public ActionResult SubmitFrom(HttpPostedFileBase file){ HttpPostedFileBase imgFile = Request.Files[0];//获取到文件流var filename = imgFile.FileName;imgFile.SaveAs(Server.MapPath("../Test/" + filename)); //保存 return Content(filename);//返回文件名}
引用的外部JS是<script src="~/js/MyAjaxForm.js"></script>，这个MyAjaxForm不好找到，我在这把源代码贴出来，有需要的同学可以自行复制；以下是源代码：
/*!* jQuery Form Plugin* version: 2.96 (16-FEB-)* @requires jQuery v1.3.2 or later** Examples and documentation at: /jquery/form/* Dual licensed under the MIT and GPL licenses:*/licenses/mit-license.php*/licenses/gpl.html*/;(function($) {/*Usage Note:-----------Do not use both ajaxSubmit and ajaxForm on the same form. Thesefunctions are mutually exclusive. Use ajaxSubmit if you wantto bind your own submit handler to the form. For example,$(document).ready(function() {$('#myForm').bind('submit', function(e) {e.preventDefault(); // <-- important$(this).ajaxSubmit({target: '#output'});});});Use ajaxForm when you want the plugin to manage all the event bindingfor you. For example,$(document).ready(function() {$('#myForm').ajaxForm({target: '#output'});});You can also use ajaxForm with delegation (requires jQuery v1.7+), so theform does not have to exist when you invoke ajaxForm:$('#myForm').ajaxForm({delegation: true,target: '#output'});When using ajaxForm, the ajaxSubmit function will be invoked for youat the appropriate time.*//*** ajaxSubmit() provides a mechanism for immediately submitting* an HTML form using AJAX.*/$.fn.ajaxSubmit = function(options) {// fast fail if nothing selected (/ticket/2752)if (!this.length) {log('ajaxSubmit: skipping submit process - no element selected');return this;}var method, action, url, $form = this;if (typeof options == 'function') {options = { success: options };}method = this.attr('method');action = this.attr('action');url = (typeof action === 'string') ? $.trim(action) : '';url = url || window.location.href || '';if (url) {// clean url (don't include hash vaue)url = (url.match(/^([^#]+)/)||[])[1];}options = $.extend(true, {url: url,success: $.ajaxSettings.success,type: method || 'GET',iframeSrc: /^https/i.test(window.location.href || '') ? 'javascript:false' : 'about:blank'}, options);// hook for manipulating the form data before it is extracted;// convenient for use with rich editors like tinyMCE or FCKEditorvar veto = {};this.trigger('form-pre-serialize', [this, options, veto]);if (veto.veto) {log('ajaxSubmit: submit vetoed via form-pre-serialize trigger');return this;}// provide opportunity to alter form data before it is serializedif (options.beforeSerialize && options.beforeSerialize(this, options) === false) {log('ajaxSubmit: submit aborted via beforeSerialize callback');return this;}var traditional = options.traditional;if ( traditional === undefined ) {traditional = $.ajaxSettings.traditional;}var qx,n,v,a = this.formToArray(options.semantic);if (options.data) {options.extraData = options.data;qx = $.param(options.data, traditional);}// give pre-submit callback an opportunity to abort the submitif (options.beforeSubmit && options.beforeSubmit(a, this, options) === false) {log('ajaxSubmit: submit aborted via beforeSubmit callback');return this;}// fire vetoable 'validate' eventthis.trigger('form-submit-validate', [a, this, options, veto]);if (veto.veto) {log('ajaxSubmit: submit vetoed via form-submit-validate trigger');return this;}var q = $.param(a, traditional);if (qx) {q = ( q ? (q + '&' + qx) : qx );}if (options.type.toUpperCase() == 'GET') {options.url += (options.url.indexOf('?') >= 0 ? '&' : '?') + q;options.data = null; // data is null for 'get'}else {options.data = q; // data is the query string for 'post'}var callbacks = [];if (options.resetForm) {callbacks.push(function() { $form.resetForm(); });}if (options.clearForm) {callbacks.push(function() { $form.clearForm(options.includeHidden); });}// perform a load on the target only if dataType is not providedif (!options.dataType && options.target) {var oldSuccess = options.success || function(){};callbacks.push(function(data) {var fn = options.replaceTarget ? 'replaceWith' : 'html';$(options.target)[fn](data).each(oldSuccess, arguments);});}else if (options.success) {callbacks.push(options.success);}options.success = function(data, status, xhr) { // jQuery 1.4+ passes xhr as 3rd argvar context = options.context || options;// jQuery 1.4+ supports scope context for (var i=0, max=callbacks.length; i < max; i++) {callbacks[i].apply(context, [data, status, xhr || $form, $form]);}};// are there files to upload?var fileInputs = $('input:file:enabled[value]', this); // [value] (issue #113)var hasFileInputs = fileInputs.length > 0;var mp = 'multipart/form-data';var multipart = ($form.attr('enctype') == mp || $form.attr('encoding') == mp);var fileAPI = !!(hasFileInputs && fileInputs.get(0).files && window.FormData);log("fileAPI :" + fileAPI);var shouldUseFrame = (hasFileInputs || multipart) && !fileAPI;// options.iframe allows user to force iframe mode// 06-NOV-09: now defaulting to iframe mode if file input is detectedif (options.iframe !== false && (options.iframe || shouldUseFrame)) {// hack to fix Safari hang (thanks to Tim Molendijk for this)// see: /group/jquery-dev/browse_thread/thread/36395b7ab510dd5dif (options.closeKeepAlive) {$.get(options.closeKeepAlive, function() {fileUploadIframe(a);});}else {fileUploadIframe(a);}}else if ((hasFileInputs || multipart) && fileAPI) {options.progress = options.progress || $.noop;fileUploadXhr(a);}else {$.ajax(options);}// fire 'notify' eventthis.trigger('form-submit-notify', [this, options]);return this;// XMLHttpRequest Level 2 file uploads (big hat tip to francois2metz)function fileUploadXhr(a) {var formdata = new FormData();for (var i=0; i < a.length; i++) {if (a[i].type == 'file')continue;formdata.append(a[i].name, a[i].value);}$form.find('input:file:enabled').each(function(){var name = $(this).attr('name'), files = this.files;if (name) {for (var i=0; i < files.length; i++)formdata.append(name, files[i]);}});if (options.extraData) {for (var k in options.extraData)formdata.append(k, options.extraData[k])}options.data = null;var s = $.extend(true, {}, $.ajaxSettings, options, {contentType: false,processData: false,cache: false,type: 'POST'});//s.context = s.context || s;s.data = null;var beforeSend = s.beforeSend;s.beforeSend = function(xhr, o) {o.data = formdata;if(xhr.upload) { // unfortunately, jQuery doesn't expose this prop (/ticket/10190)xhr.upload.onprogress = function(event) {o.progress(event.position, event.total);};}if(beforeSend)beforeSend.call(o, xhr, options);};$.ajax(s);}// private function for handling file uploads (hat tip to YAHOO!)function fileUploadIframe(a) {var form = $form[0], el, i, s, g, id, $io, io, xhr, sub, n, timedOut, timeoutHandle;var useProp = !!$.fn.prop;if (a) {if ( useProp ) {// ensure that every serialized input is still enabledfor (i=0; i < a.length; i++) {el = $(form[a[i].name]);el.prop('disabled', false);}} else {for (i=0; i < a.length; i++) {el = $(form[a[i].name]);el.removeAttr('disabled');}};}if ($(':input[name=submit],:input[id=submit]', form).length) {// if there is an input with a name or id of 'submit' then we won't be// able to invoke the submit fn on the form (at least not x-browser)alert('Error: Form elements must not have name or id of "submit".');return;}s = $.extend(true, {}, $.ajaxSettings, options);s.context = s.context || s;id = 'jqFormIO' + (new Date().getTime());if (s.iframeTarget) {$io = $(s.iframeTarget);n = $io.attr('name');if (n == null)$io.attr('name', id);elseid = n;}else {$io = $('<iframe name="' + id + '" src="'+ s.iframeSrc +'" />');$io.css({ position: 'absolute', top: '-1000px', left: '-1000px' });}io = $io[0];xhr = { // mock objectaborted: 0,responseText: null,responseXML: null,status: 0,statusText: 'n/a',getAllResponseHeaders: function() {},getResponseHeader: function() {},setRequestHeader: function() {},abort: function(status) {var e = (status === 'timeout' ? 'timeout' : 'aborted');log('aborting upload... ' + e);this.aborted = 1;$io.attr('src', s.iframeSrc); // abort op in progressxhr.error = e;s.error && s.error.call(s.context, xhr, e, status);g && $.event.trigger("ajaxError", [xhr, s, e]);plete && plete.call(s.context, xhr, e);}};g = s.global;// trigger ajax global events so that activity/block indicators work like normalif (g && ! $.active++) {$.event.trigger("ajaxStart");}if (g) {$.event.trigger("ajaxSend", [xhr, s]);}if (s.beforeSend && s.beforeSend.call(s.context, xhr, s) === false) {if (s.global) {$.active--;}return;}if (xhr.aborted) {return;}// add submitting element to data if we know itsub = form.clk;if (sub) {n = sub.name;if (n && !sub.disabled) {s.extraData = s.extraData || {};s.extraData[n] = sub.value;if (sub.type == "image") {s.extraData[n+'.x'] = form.clk_x;s.extraData[n+'.y'] = form.clk_y;}}}var CLIENT_TIMEOUT_ABORT = 1;var SERVER_ABORT = 2;function getDoc(frame) {var doc = frame.contentWindow ? frame.contentWindow.document : frame.contentDocument ? frame.contentDocument : frame.document;return doc;}// Rails CSRF hack (thanks to Yvan Barthelemy)var csrf_token = $('meta[name=csrf-token]').attr('content');var csrf_param = $('meta[name=csrf-param]').attr('content');if (csrf_param && csrf_token) {s.extraData = s.extraData || {};s.extraData[csrf_param] = csrf_token;}// take a breath so that pending repaints get some cpu time before the upload startsfunction doSubmit() {// make sure form attrs are setvar t = $form.attr('target'), a = $form.attr('action');// update form attrs in IE friendly wayform.setAttribute('target',id);if (!method) {form.setAttribute('method', 'POST');}if (a != s.url) {form.setAttribute('action', s.url);}// ie borks in some cases when setting encodingif (! s.skipEncodingOverride && (!method || /post/i.test(method))) {$form.attr({encoding: 'multipart/form-data',enctype: 'multipart/form-data'});}// support timoutif (s.timeout) {timeoutHandle = setTimeout(function() { timedOut = true; cb(CLIENT_TIMEOUT_ABORT); }, s.timeout);}// look for server abortsfunction checkState() {try {var state = getDoc(io).readyState;log('state = ' + state);if (state.toLowerCase() == 'uninitialized')setTimeout(checkState,50);}catch(e) {log('Server abort: ' , e, ' (', e.name, ')');cb(SERVER_ABORT);timeoutHandle && clearTimeout(timeoutHandle);timeoutHandle = undefined;}}// add "extra" data to form if provided in optionsvar extraInputs = [];try {if (s.extraData) {for (var n in s.extraData) {extraInputs.push($('<input type="hidden" name="'+n+'">').attr('value',s.extraData[n]).appendTo(form)[0]);}}if (!s.iframeTarget) {// add iframe to doc and submit the form$io.appendTo('body');io.attachEvent ? io.attachEvent('onload', cb) : io.addEventListener('load', cb, false);}setTimeout(checkState,15);form.submit();}finally {// reset attrs and remove "extra" input elementsform.setAttribute('action',a);if(t) {form.setAttribute('target', t);} else {$form.removeAttr('target');}$(extraInputs).remove();}}if (s.forceSync) {doSubmit();}else {setTimeout(doSubmit, 10); // this lets dom updates render}var data, doc, domCheckCount = 50, callbackProcessed;function cb(e) {if (xhr.aborted || callbackProcessed) {return;}try {doc = getDoc(io);}catch(ex) {log('cannot access response document: ', ex);e = SERVER_ABORT;}if (e === CLIENT_TIMEOUT_ABORT && xhr) {xhr.abort('timeout');return;}else if (e == SERVER_ABORT && xhr) {xhr.abort('server abort');return;}if (!doc || doc.location.href == s.iframeSrc) {// response not received yetif (!timedOut)return;}io.detachEvent ? io.detachEvent('onload', cb) : io.removeEventListener('load', cb, false);var status = 'success', errMsg;try {if (timedOut) {throw 'timeout';}var isXml = s.dataType == 'xml' || doc.XMLDocument || $.isXMLDoc(doc);log('isXml='+isXml);if (!isXml && window.opera && (doc.body == null || doc.body.innerHTML == '')) {if (--domCheckCount) {// in some browsers (Opera) the iframe DOM is not always traversable when// the onload callback fires, so we loop a bit to accommodatelog('requeing onLoad callback, DOM not available');setTimeout(cb, 250);return;}// let this fall through because server response could be an empty document//log('Could not access iframe DOM after mutiple tries.');//throw 'DOMException: not available';}//log('response detected');var docRoot = doc.body ? doc.body : doc.documentElement;xhr.responseText = docRoot ? docRoot.innerHTML : null;xhr.responseXML = doc.XMLDocument ? doc.XMLDocument : doc;if (isXml)s.dataType = 'xml';xhr.getResponseHeader = function(header){var headers = {'content-type': s.dataType};return headers[header];};// support for XHR 'status' & 'statusText' emulation :if (docRoot) {xhr.status = Number( docRoot.getAttribute('status') ) || xhr.status;xhr.statusText = docRoot.getAttribute('statusText') || xhr.statusText;}var dt = (s.dataType || '').toLowerCase();var scr = /(json|script|text)/.test(dt);if (scr || s.textarea) {// see if user embedded response in textareavar ta = doc.getElementsByTagName('textarea')[0];if (ta) {xhr.responseText = ta.value;// support for XHR 'status' & 'statusText' emulation :xhr.status = Number( ta.getAttribute('status') ) || xhr.status;xhr.statusText = ta.getAttribute('statusText') || xhr.statusText;}else if (scr) {// account for browsers injecting pre around json responsevar pre = doc.getElementsByTagName('pre')[0];var b = doc.getElementsByTagName('body')[0];if (pre) {xhr.responseText = pre.textContent ? pre.textContent : pre.innerText;}else if (b) {xhr.responseText = b.textContent ? b.textContent : b.innerText;}}}else if (dt == 'xml' && !xhr.responseXML && xhr.responseText != null) {xhr.responseXML = toXml(xhr.responseText);}try {data = httpData(xhr, dt, s);}catch (e) {status = 'parsererror';xhr.error = errMsg = (e || status);}}catch (e) {log('error caught: ',e);status = 'error';xhr.error = errMsg = (e || status);}if (xhr.aborted) {log('upload aborted');status = null;}if (xhr.status) { // we've set xhr.statusstatus = (xhr.status >= 200 && xhr.status < 300 || xhr.status === 304) ? 'success' : 'error';}// ordering of these callbacks/triggers is odd, but that's how $.ajax does itif (status === 'success') {s.success && s.success.call(s.context, data, 'success', xhr);g && $.event.trigger("ajaxSuccess", [xhr, s]);}else if (status) {if (errMsg == undefined)errMsg = xhr.statusText;s.error && s.error.call(s.context, xhr, status, errMsg);g && $.event.trigger("ajaxError", [xhr, s, errMsg]);}g && $.event.trigger("ajaxComplete", [xhr, s]);if (g && ! --$.active) {$.event.trigger("ajaxStop");}plete && plete.call(s.context, xhr, status);callbackProcessed = true;if (s.timeout)clearTimeout(timeoutHandle);// clean upsetTimeout(function() {if (!s.iframeTarget)$io.remove();xhr.responseXML = null;}, 100);}var toXml = $.parseXML || function(s, doc) { // use parseXML if available (jQuery 1.5+)if (window.ActiveXObject) {doc = new ActiveXObject('Microsoft.XMLDOM');doc.async = 'false';doc.loadXML(s);}else {doc = (new DOMParser()).parseFromString(s, 'text/xml');}return (doc && doc.documentElement && doc.documentElement.nodeName != 'parsererror') ? doc : null;};var parseJSON = $.parseJSON || function(s) {return window['eval']('(' + s + ')');};var httpData = function( xhr, type, s ) { // mostly lifted from jq1.4.4var ct = xhr.getResponseHeader('content-type') || '',xml = type === 'xml' || !type && ct.indexOf('xml') >= 0,data = xml ? xhr.responseXML : xhr.responseText;if (xml && data.documentElement.nodeName === 'parsererror') {$.error && $.error('parsererror');}if (s && s.dataFilter) {data = s.dataFilter(data, type);}if (typeof data === 'string') {if (type === 'json' || !type && ct.indexOf('json') >= 0) {data = parseJSON(data);} else if (type === "script" || !type && ct.indexOf("javascript") >= 0) {$.globalEval(data);}}return data;};}};/*** ajaxForm() provides a mechanism for fully automating form submission.** The advantages of using this method instead of ajaxSubmit() are:** 1: This method will include coordinates for <input type="image" /> elements (if the element*is used to submit the form).* 2. This method will include the submit element's name/value data (for the element that was*used to submit the form).* 3. This method binds the submit() method to the form for you.** The options argument for ajaxForm works exactly as it does for ajaxSubmit. ajaxForm merely* passes the options argument along after properly binding events for submit elements and* the form itself.*/$.fn.ajaxForm = function(options) {options = options || {};options.delegation = options.delegation && $.isFunction($.fn.on);// in jQuery 1.3+ we can fix mistakes with the ready stateif (!options.delegation && this.length === 0) {var o = { s: this.selector, c: this.context };if (!$.isReady && o.s) {log('DOM not ready, queuing ajaxForm');$(function() {$(o.s,o.c).ajaxForm(options);});return this;}// is your DOM ready? /Tutorials:Introducing_$(document).ready()log('terminating; zero elements found by selector' + ($.isReady ? '' : ' (DOM not ready)'));return this;}if ( options.delegation ) {$(document).off('submit.form-plugin', this.selector, doAjaxSubmit).off('click.form-plugin', this.selector, captureSubmittingElement).on('submit.form-plugin', this.selector, options, doAjaxSubmit).on('click.form-plugin', this.selector, options, captureSubmittingElement);return this;}return this.ajaxFormUnbind().bind('submit.form-plugin', options, doAjaxSubmit).bind('click.form-plugin', options, captureSubmittingElement);};// private event handlersfunction doAjaxSubmit(e) {var options = e.data;if (!e.isDefaultPrevented()) { // if event has been canceled, don't proceede.preventDefault();$(this).ajaxSubmit(options);}}function captureSubmittingElement(e) {var target = e.target;var $el = $(target);if (!($el.is(":submit,input:image"))) {// is this a child element of the submit el? (ex: a span within a button)var t = $el.closest(':submit');if (t.length == 0) {return;}target = t[0];}var form = this;form.clk = target;if (target.type == 'image') {if (e.offsetX != undefined) {form.clk_x = e.offsetX;form.clk_y = e.offsetY;} else if (typeof $.fn.offset == 'function') {var offset = $el.offset();form.clk_x = e.pageX - offset.left;form.clk_y = e.pageY - offset.top;} else {form.clk_x = e.pageX - target.offsetLeft;form.clk_y = e.pageY - target.offsetTop;}}// clear form varssetTimeout(function() { form.clk = form.clk_x = form.clk_y = null; }, 100);};// ajaxFormUnbind unbinds the event handlers that were bound by ajaxForm$.fn.ajaxFormUnbind = function() {return this.unbind('submit.form-plugin click.form-plugin');};/*** formToArray() gathers form element data into an array of objects that can* be passed to any of the following ajax functions: $.get, $.post, or load.* Each object in the array has both a 'name' and 'value' property. An example of* an array for a simple login form might be:** [ { name: 'username', value: 'jresig' }, { name: 'password', value: 'secret' } ]** It is this array that is passed to pre-submit callback functions provided to the* ajaxSubmit() and ajaxForm() methods.*/$.fn.formToArray = function(semantic) {var a = [];if (this.length === 0) {return a;}var form = this[0];var els = semantic ? form.getElementsByTagName('*') : form.elements;if (!els) {return a;}var i,j,n,v,el,max,jmax;for(i=0, max=els.length; i < max; i++) {el = els[i];n = el.name;if (!n) {continue;}if (semantic && form.clk && el.type == "image") {// handle image inputs on the fly when semantic == trueif(!el.disabled && form.clk == el) {a.push({name: n, value: $(el).val(), type: el.type });a.push({name: n+'.x', value: form.clk_x}, {name: n+'.y', value: form.clk_y});}continue;}v = $.fieldValue(el, true);if (v && v.constructor == Array) {for(j=0, jmax=v.length; j < jmax; j++) {a.push({name: n, value: v[j]});}}else if (v !== null && typeof v != 'undefined') {a.push({name: n, value: v, type: el.type});}}if (!semantic && form.clk) {// input type=='image' are not found in elements array! handle it herevar $input = $(form.clk), input = $input[0];n = input.name;if (n && !input.disabled && input.type == 'image') {a.push({name: n, value: $input.val()});a.push({name: n+'.x', value: form.clk_x}, {name: n+'.y', value: form.clk_y});}}return a;};/*** Serializes form data into a 'submittable' string. This method will return a string* in the format: name1=value1&name2=value2*/$.fn.formSerialize = function(semantic) {//hand off to jQuery.param for proper encodingreturn $.param(this.formToArray(semantic));};/*** Serializes all field elements in the jQuery object into a query string.* This method will return a string in the format: name1=value1&name2=value2*/$.fn.fieldSerialize = function(successful) {var a = [];this.each(function() {var n = this.name;if (!n) {return;}var v = $.fieldValue(this, successful);if (v && v.constructor == Array) {for (var i=0,max=v.length; i < max; i++) {a.push({name: n, value: v[i]});}}else if (v !== null && typeof v != 'undefined') {a.push({name: this.name, value: v});}});//hand off to jQuery.param for proper encodingreturn $.param(a);};/*** Returns the value(s) of the element in the matched set. For example, consider the following form:** <form><fieldset>* <input name="A" type="text" />* <input name="A" type="text" />* <input name="B" type="checkbox" value="B1" />* <input name="B" type="checkbox" value="B2"/>* <input name="C" type="radio" value="C1" />* <input name="C" type="radio" value="C2" />* </fieldset></form>** var v = $(':text').fieldValue();* // if no values are entered into the text inputs* v == ['','']* // if values entered into the text inputs are 'foo' and 'bar'* v == ['foo','bar']** var v = $(':checkbox').fieldValue();* // if neither checkbox is checked* v === undefined* // if both checkboxes are checked* v == ['B1', 'B2']** var v = $(':radio').fieldValue();* // if neither radio is checked* v === undefined* // if first radio is checked* v == ['C1']** The successful argument controls whether or not the field element must be 'successful'* (per /TR/html4/interact/forms.html#successful-controls).* The default value of the successful argument is true. If this value is false the value(s)* for each element is returned.** Note: This method *always* returns an array. If no valid value can be determined the*array will be empty, otherwise it will contain one or more values.*/$.fn.fieldValue = function(successful) {for (var val=[], i=0, max=this.length; i < max; i++) {var el = this[i];var v = $.fieldValue(el, successful);if (v === null || typeof v == 'undefined' || (v.constructor == Array && !v.length)) {continue;}v.constructor == Array ? $.merge(val, v) : val.push(v);}return val;};/*** Returns the value of the field element.*/$.fieldValue = function(el, successful) {var n = el.name, t = el.type, tag = el.tagName.toLowerCase();if (successful === undefined) {successful = true;}if (successful && (!n || el.disabled || t == 'reset' || t == 'button' ||(t == 'checkbox' || t == 'radio') && !el.checked ||(t == 'submit' || t == 'image') && el.form && el.form.clk != el ||tag == 'Select' && el.selectedIndex == -1)) {return null;}if (tag == 'Select') {var index = el.selectedIndex;if (index < 0) {return null;}var a = [], ops = el.options;var one = (t == 'Select-one');var max = (one ? index+1 : ops.length);for(var i=(one ? index : 0); i < max; i++) {var op = ops[i];if (op.selected) {var v = op.value;if (!v) { // extra pain for IE...v = (op.attributes && op.attributes['value'] && !(op.attributes['value'].specified)) ? op.text : op.value;}if (one) {return v;}a.push(v);}}return a;}return $(el).val();};/*** Clears the form data. Takes the following actions on the form's input fields:* - input text fields will have their 'value' property set to the empty string* - Select elements will have their 'selectedIndex' property set to -1* - checkbox and radio inputs will have their 'checked' property set to false* - inputs of type submit, button, reset, and hidden will *not* be effected* - button elements will *not* be effected*/$.fn.clearForm = function(includeHidden) {return this.each(function() {$('input,Select,textarea', this).clearFields(includeHidden);});};/*** Clears the selected form elements.*/$.fn.clearFields = $.fn.clearInputs = function(includeHidden) {var re = /^(?:color|date|datetime|email|month|number|password|range|search|tel|text|time|url|week)$/i; // 'hidden' is not in this listreturn this.each(function() {var t = this.type, tag = this.tagName.toLowerCase();if (re.test(t) || tag == 'textarea' || (includeHidden && /hidden/.test(t)) ) {this.value = '';}else if (t == 'checkbox' || t == 'radio') {this.checked = false;}else if (tag == 'Select') {this.selectedIndex = -1;}});};/*** Resets the form data. Causes all form elements to be reset to their original value.*/$.fn.resetForm = function() {return this.each(function() {// guard against an input with the name of 'reset'// note that IE reports the reset function as an 'object'if (typeof this.reset == 'function' || (typeof this.reset == 'object' && !this.reset.nodeType)) {this.reset();}});};/*** Enables or disables any matching elements.*/$.fn.enable = function(b) {if (b === undefined) {b = true;}return this.each(function() {this.disabled = !b;});};/*** Checks/unchecks any matching checkboxes or radio buttons and* selects/deselects and matching option elements.*/$.fn.selected = function(select) {if (select === undefined) {select = true;}return this.each(function() {var t = this.type;if (t == 'checkbox' || t == 'radio') {this.checked = select;}else if (this.tagName.toLowerCase() == 'option') {var $sel = $(this).parent('Select');if (select && $sel[0] && $sel[0].type == 'Select-one') {// deselect all other options$sel.find('option').selected(false);}this.selected = select;}});};// expose debug var$.fn.ajaxSubmit.debug = false;// helper fn for console loggingfunction log() {if (!$.fn.ajaxSubmit.debug) return;var msg = '[jquery.form] ' + Array.prototype.join.call(arguments,'');if (window.console && window.console.log) {window.console.log(msg);}else if (window.opera && window.opera.postError) {window.opera.postError(msg);}};})(jQuery);
