【发布时间】:2015-06-16 17:58:43
【问题描述】:
我已经尝试让它工作了将近一个星期。最后我会寻求帮助。我确定我错过了一些简单的东西。
我正在使用 DropZone.js 允许将图片上传到网络服务器。我需要为每次上传添加一个文本框,以便用户可以在图像中输入其他信息或“标签”,以便以后可以通过这些标签过滤它们。我可以得到一个输入来显示每个添加的图像,但是当我试图在“发送”事件期间读取这些文本框中的值时,我得到的只是第一个文本框的值。因此,如果他们上传 5 张图片,所有图片都将通过在第一个文本框中输入的“标签”。
感谢您提供的任何帮助。
<div class="table table-striped" class="files" id="previews">
<div id="template" class="file-row">
<!-- This is used as the file preview template -->
<div>
<span class="preview">
<img data-dz-thumbnail /></span>
</div>
<div>
<p class="name" data-dz-name></p>
<strong class="error text-danger" data-dz-errormessage></strong>
</div>
<div>
<p class="tags" data-dz-tags></p>
<input type="text" id="tags" name="tags" />
</div>
<div>
<p class="size" data-dz-size></p>
<div class="progress progress-striped active" role="progressbar" aria-valuemin="0" aria-valuemax="100" aria-valuenow="0">
<div class="progress-bar progress-bar-success" style="width: 0%;" data-dz-uploadprogress></div>
</div>
</div>
<div>
<button class="btn btn-primary start">
<i class="glyphicon glyphicon-upload"></i>
<span>Start</span>
</button>
<button data-dz-remove class="btn btn-warning cancel">
<i class="glyphicon glyphicon-ban-circle"></i>
<span>Cancel</span>
</button>
<button data-dz-remove class="btn btn-danger delete">
<i class="glyphicon glyphicon-trash"></i>
<span>Delete</span>
</button>
</div>
</div>
</div>
还有 javascript:
<script>
// Get the template HTML and remove it from the doument
var previewNode = document.querySelector("#template");
previewNode.id = "";
var previewTemplate = previewNode.parentNode.innerHTML;
previewNode.parentNode.removeChild(previewNode);
var myDropzone = new Dropzone(document.body, { // Make the whole body a dropzone
url: "project.aspx", // Set the url
thumbnailWidth: 80,
thumbnailHeight: 80,
parallelUploads: 20,
previewTemplate: previewTemplate,
autoQueue: false, // Make sure the files aren't queued until manually added
previewsContainer: "#previews", // Define the container to display the previews
clickable: ".fileinput-button" // Define the element that should be used as click trigger to select files.
});
myDropzone.on("addedfile", function (file) {
// Hookup the start button
file.previewElement.querySelector(".start").onclick = function () { myDropzone.enqueueFile(file); };
});
// Update the total progress bar
myDropzone.on("totaluploadprogress", function (progress) {
document.querySelector("#total-progress .progress-bar").style.width = progress + "%";
});
myDropzone.on("sending", function (file, xhr, formData) {
formData.append("tags", document.getElementById('tags').value);
// Show the total progress bar when upload starts
document.querySelector("#total-progress").style.opacity = "1";
// And disable the start button
file.previewElement.querySelector(".start").setAttribute("disabled", "disabled");
});
// Hide the total progress bar when nothing's uploading anymore
myDropzone.on("queuecomplete", function (progress) {
document.querySelector("#total-progress").style.opacity = "0";
});
// Setup the buttons for all transfers
// The "add files" button doesn't need to be setup because the config
// `clickable` has already been specified.
document.querySelector("#actions .start").onclick = function () {
myDropzone.enqueueFiles(myDropzone.getFilesWithStatus(Dropzone.ADDED));
};
document.querySelector("#actions .cancel").onclick = function () {
myDropzone.removeAllFiles(true);
};
</script>
这都包含在一个 aspx 页面中并回发给它自己。在后面的代码中,我试图读取表单的值。但我只能取回放在第一个文本框中的值。
谢谢, 基思
【问题讨论】:
-
这个解决方案有什么运气吗?我正在尝试使用 react-dropzone-component 来实现它
-
解决方案好运吗?
标签: javascript jquery html asp.net dropzone.js