我有一个允许拖放功能的照片上传页面。
表格在这里:
<form id="Upload" method="post" action="sessionapi/UserPicture/Upload" enctype="multipart/form-data">
<input class="box__file" type="file" name="files[]" id="file" data-multiple-caption="{count} files selected" multiple />
<input type="hidden" name="UserPictureReferenceID" value="<%=mPictureGalleryCvm.UserPictureReference.UserPictureReferenceID%>" />
<input type="hidden" name="UserPictureReferenceType" value="<%=mPictureGalleryCvm.UserPictureReference.UserPictureReferenceType%>" />
<div id="photoUploadArea" class="hide">
<div id="photoDropArea">
<h2>Add Up to 10 photos</h2>
<p class="subTitle">Your file must be a JPEG, PNG, or GIF</p>
<p><img src="img/mascotLeftNoResults.png" /></p>
<h3>Drag and Drop Photos Here</h3>
<div class="hr-line">
<h3><span>OR</span></h3>
</div>
<div id="photoUploadButton">
<input id="files" class="fileUploadInput hide" type="file" multiple="">
<button class="fileBrowserButton" type="submit" value="submit"><span>Browse Files</span></button>
<script>
$('.fileBrowserButton').on('click', function (e) {
e.preventDefault();
$("#file").click();
})
</script>
</div>
</div>
</div>
</form>
通过AJAX发送数据的功能如下:
function handleFileSelect(evt) {
evt.stopPropagation();
evt.preventDefault();
var ajaxData = new FormData($form.get(0)),
$input = $form.find('input[type="file"]'),
files;
if (evt.type == 'change') files = evt.target.files;
else files = evt.originalEvent.dataTransfer.files; // FileList object.
for (var i = 0, f; f = files[i]; i++) { //Loop through selected images
if (!f.type.match('image.*')) { //check file is an image
continue;
}
var reader = new FileReader();
reader.onload = (function (theFile) {
return function (e) {
if (files && evt.type != 'change') {
$.each(files, function (i, file) { //problem is here
ajaxData.append($input.attr('name'), file);
});
}
$.ajax({
url: 'sessionapi/UserPicture/Upload',
method: 'POST',
data: ajaxData,
cache: false,
contentType: false,
processData: false,
success: function(data) {
console.log(data);
}
})
};
})(f);
// Read in the image file as a data URL.
reader.readAsDataURL(f);
}
}
代码的问题在于JS代码中的区域:
$.each(files, function (i, file) {
ajaxData.append($input.attr('name'), file);
});
ajaxData为FormData附加一个文件输入,用于拖入的新文件。但是,当文件通过ajax提交时,它会在表单中发送空白的“文件”输入。我需要在拖放时发送所有字段减去空白文件字段。我该怎么做呢?
答案 0 :(得分:0)
您是否尝试将html表单属性添加到fileinput?如果您指定了不同的表单名称,则应忽略此名称。
<input id="files" form="someRandomName" ... >
编辑:
是的,如果没有输入表单属性,也可以删除输入。