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" onclick="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-2012)
* @requires jQuery v1.3.2 or later
*
* Examples and documentation at: http://malsup.com/jquery/form/
* Dual licensed under the MIT and GPL licenses:
* http://www.opensource.org/licenses/mit-license.php
* http://www.gnu.org/licenses/gpl.html
*/
;(function($) { /*
Usage Note:
-----------
Do not use both ajaxSubmit and ajaxForm on the same form. These
functions are mutually exclusive. Use ajaxSubmit if you want
to 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 binding
for you. For example, $(document).ready(function() {
$('#myForm').ajaxForm({
target: '#output'
});
}); You can also use ajaxForm with delegation (requires jQuery v1.7+), so the
form 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 you
at the appropriate time.
*/ /**
* ajaxSubmit() provides a mechanism for immediately submitting
* an HTML form using AJAX.
*/
$.fn.ajaxSubmit = function(options) {
// fast fail if nothing selected (http://dev.jquery.com/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 FCKEditor
var 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 serialized
if (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 submit
if (options.beforeSubmit && options.beforeSubmit(a, this, options) === false) {
log('ajaxSubmit: submit aborted via beforeSubmit callback');
return this;
} // fire vetoable 'validate' event
this.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 provided
if (!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 arg
var 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 detected
if (options.iframe !== false && (options.iframe || shouldUseFrame)) {
// hack to fix Safari hang (thanks to Tim Molendijk for this)
// see: http://groups.google.com/group/jquery-dev/browse_thread/thread/36395b7ab510dd5d
if (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' event
this.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 (http://bugs.jquery.com/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 enabled
for (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);
else
id = n;
}
else {
$io = $('<iframe name="' + id + '" src="'+ s.iframeSrc +'" />');
$io.css({ position: 'absolute', top: '-1000px', left: '-1000px' });
}
io = $io[0]; xhr = { // mock object
aborted: 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 progress
xhr.error = e;
s.error && s.error.call(s.context, xhr, e, status);
g && $.event.trigger("ajaxError", [xhr, s, e]);
s.complete && s.complete.call(s.context, xhr, e);
}
}; g = s.global;
// trigger ajax global events so that activity/block indicators work like normal
if (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 it
sub = 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 starts
function doSubmit() {
// make sure form attrs are set
var t = $form.attr('target'), a = $form.attr('action'); // update form attrs in IE friendly way
form.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 encoding
if (! s.skipEncodingOverride && (!method || /post/i.test(method))) {
$form.attr({
encoding: 'multipart/form-data',
enctype: 'multipart/form-data'
});
} // support timout
if (s.timeout) {
timeoutHandle = setTimeout(function() { timedOut = true; cb(CLIENT_TIMEOUT_ABORT); }, s.timeout);
} // look for server aborts
function 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 options
var 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 elements
form.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 yet
if (!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 accommodate
log('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 textarea
var 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 response
var 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.status
status = (xhr.status >= 200 && xhr.status < 300 || xhr.status === 304) ? 'success' : 'error';
} // ordering of these callbacks/triggers is odd, but that's how $.ajax does it
if (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");
} s.complete && s.complete.call(s.context, xhr, status); callbackProcessed = true;
if (s.timeout)
clearTimeout(timeoutHandle); // clean up
setTimeout(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 jq1.4.4 var 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 state
if (!options.delegation && this.length === 0) {
var o = { s: this.selector, c: this.context };
if (!$.isReady && o.s) {
log('DOM not ready, queuing ajaxForm');
$(function() {
$(o.s,o.c).ajaxForm(options);
});
return this;
}
// is your DOM ready? http://docs.jquery.com/Tutorials:Introducing_$(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 handlers
function doAjaxSubmit(e) {
var options = e.data;
if (!e.isDefaultPrevented()) { // if event has been canceled, don't proceed
e.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 vars
setTimeout(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 == true
if(!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 here
var $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 encoding
return $.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 encoding
return $.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 http://www.w3.org/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 list
return 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
$.fn.ajaxSubmit.debug = false; // helper fn for console logging
function log() {
if (!$.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);

  

ASP.NET MVC异步上传文件的更多相关文章

  1. Asp.Net Mvc异步上传文件的方式

    今天试了下mvc自带的ajax,发现上传文件时后端action接收不到文件, Request.Files和HttpPostedFileBase都接收不到.....后来搜索了下才知道mvc自带的Ajax ...

  2. asp.net mvc 实现上传文件带进度条

    本文乃是博主早期写的,此种思路虽然实现了,但固然不是最好的,仅做参考学习. 可以用js onprogress .fileinput .webuploader.jq ajaxsubmit等实现 思路:a ...

  3. asp.net MVC ajax上传文件

    普通上传 view: <body> <form id="form1" method="post" action="@Url.Acti ...

  4. 异步上传文件,ajax上传文件,jQuery插件之ajaxFileUpload

    http://www.cnblogs.com/kissdodog/archive/2012/12/15/2819025.html 一.ajaxFileUpload是一个异步上传文件的jQuery插件. ...

  5. 利用jquery.form实现异步上传文件

    实现原理 目前需要在一个页面实现多个地方调用上传控件上传文件,并且必须是异步上传.思考半天,想到通过创建动态表单包裹上传文件域,利用jquery.form实现异步提交表单,从而达到异步上传的目的,在上 ...

  6. (H5)FormData+AJAX+SpringMVC跨域异步上传文件

    最近都没时间整理资料了,一入职就要弄懂业务,整天被业务弄得血崩. 总结下今天弄了一个早上的跨域异步上传文件.主要用到技术有HTML5的FormData,AJAX,Spring MVC. 首先看下上传页 ...

  7. spingMVC异步上传文件

    框架是个强大的东西,一般你能想到的,框架都会帮你做了,然后只需要会用就行了,spingmvc中有处理异步请求的机制,而且跟一般处理请求的方法差别不大,只是多了一个注解:spingmvc也可以将stri ...

  8. jquery ajaxFileUpload异步上传文件

    ajaxFileUpload.js 很多同名的,因为做出来一个很容易. 我用的是这个:https://github.com/carlcarl/AjaxFileUpload 下载地址在这里:http:/ ...

  9. Servlet异步上传文件

    这里需要用到插件ajaxfileupload.js,jar包:commons-fileupload-1.3.2.jar,commons-io-2.5.jar 注意红色部分的字!!!! 1.创建一个we ...

随机推荐

  1. gulp编译sass

    前言:前段时间学习了sass语法,但是一直用的是"考拉"这个软件工具将我写的sass代码编译成css,然后再引用到项目里面去的,随着对sass的更加深入的了解,我开始尝试着将sas ...

  2. SQL Server2014,附加数据库失败,错误为:5120的解决方法

    在SQL Server 2014附加数据库的时候,报错为: 无法打开物理文件XXX,操作系统错误5(拒绝访问),SQL Server 错误5120 解决方法:  我的电脑→管理→服务和应用程序→ 服务 ...

  3. ICTCLAS20160405分词系统调试过程

    一.前期准备: 1.下载最新版本的资源包:CTCLAS20160405171043_ICTCLAS2016分词系统下载包 2.下载最新版本的licence:https://github.com/NLP ...

  4. Java Bean Validation 最佳实践

    参数校验是我们程序开发中必不可少的过程.用户在前端页面上填写表单时,前端js程序会校验参数的合法性,当数据到了后端,为了防止恶意操作,保持程序的健壮性,后端同样需要对数据进行校验.后端参数校验最简单的 ...

  5. easyUI + swfupload 多附件上传功能

    public void UPLOADFILED() { Date dt = new Date(System.currentTimeMillis()); SimpleDateFormat sdf = n ...

  6. python 学习笔记十五 django基础

    Python的WEB框架有Django.Tornado.Flask 等多种,Django相较与其他WEB框架其优势为:大而全,框架本身集成了ORM.模型绑定.模板引擎.缓存.Session等诸多功能. ...

  7. sharepoint 2013 开发环境安装

    Sharepoint 介绍 Sharepoint 可以帮助企业用户轻松完成日常工作中诸如文档审批.在线申请等业务流程,同时提供多种接口实现后台业务系统的集成,它将 Office 桌面端应用的优势结合 ...

  8. HQL查询——聚集函数

    HQL查询--聚集函数 HQL也支持在选出的属性上使用聚集函数.HQL支持的聚集函数与SQL的完全相同: (1)avg:计算属性平均值: (2)count:统计选择对象的数量: (3)max:统计属性 ...

  9. CSS学习心得2

    CSS样式 链接 a:link - 普通的.未被访问的链接 a:visited - 用户已访问的链接 a:hover - 鼠标指针位于链接的上方 a:active - 链接被点击的时刻 当为链接的不同 ...

  10. nginx+lua实现简单的waf网页防火墙功能

    原文:http://www.2cto.com/net/201608/534272.html 安装LuaJIT http://luajit.org/download/LuaJIT-2.0.4.tar.g ...