在Sharepoint 2013中,是否可以将文件(.jpg,.pdf,.png)拖放到自定义列表作为附件?如果是这样,可以通过使用脚本(JS,jquery)来实现吗?因此,如果用户报告错误(NewForm.aspx),并且他将错误消息的屏幕截图保存为.jpg,我希望他能够将此文件放入表单上的放置区域。 / p>
这种情况可以运作 - 我会非常感谢你的建议吗?
答案 0 :(得分:0)
这是我测试过的代码。
<style type="text/css">
.droppable {
background: #08c;
color: #fff;
padding: 100px 0;
text-align: center;
}
.droppable.dragover {
background: #00CC71;
}
</style>
<script type="text/javascript" src="https://code.jquery.com/jquery-1.12.4.js"></script>
<script type="text/javascript">
function makeDroppable(element, callback) {
var input = document.createElement('input');
input.setAttribute('type', 'file');
input.setAttribute('id', 'dragdropContent');
input.setAttribute('multiple', true);
input.style.display = 'none';
input.addEventListener('change', triggerCallback);
element.appendChild(input);
element.addEventListener('dragover', function (e) {
e.preventDefault();
e.stopPropagation();
element.classList.add('dragover');
});
element.addEventListener('dragleave', function (e) {
e.preventDefault();
e.stopPropagation();
element.classList.remove('dragover');
});
element.addEventListener('drop', function (e) {
e.preventDefault();
e.stopPropagation();
element.classList.remove('dragover');
triggerCallback(e);
});
element.addEventListener('click', function () {
input.value = null;
input.click();
});
function triggerCallback(e) {
var files;
if (e.dataTransfer) {
files = e.dataTransfer.files;
} else if (e.target) {
files = e.target.files;
}
callback.call(null, files);
}
}
$(function () {
String.prototype.format = function () {
var args = [].slice.call(arguments);
return this.replace(/(\{\d+\})/g, function (a) {
return args[+(a.substr(1, a.length - 2)) || 0];
});
};
var element = document.querySelector('.droppable');
function callback(files) {
// Here, we simply log the Array of files to the console.
//console.log(files);
var fileName = files[0].name;
// Construct the endpoint. mydoc is document library name
var reader = new FileReader();
reader.file = files[0];
reader.onload = function (event) {
var arrayBuffer = event.target.result;
//var fileData = '';
//var byteArray = new Uint8Array(arrayBuffer);
//for (var i = 0; i < byteArray.byteLength; i++) {
// fileData += String.fromCharCode(byteArray[i]);
//}
var fileEndpoint = String.format(
"{0}/_api/web/lists/getByTitle('{1}')/RootFolder/files" +
"/add(overwrite=true, url='{2}')",
_spPageContextInfo.webAbsoluteUrl, 'mydoc', fileName);
//Add the file to the SharePoint folder.
$.ajax({
url: fileEndpoint,
type: "POST",
data: arrayBuffer,//fileData,
processData: false,
headers: {
"X-RequestDigest": jQuery("#__REQUESTDIGEST").val(),
"accept": "application/json;odata=verbose",
"content-length": arrayBuffer.byteLength,
//"IF-MATCH": itemMetadata.etag,
//"X-HTTP-Method": "MERGE"
},
success: function (data, b, c) {
alert('File upload succeeded.');
},
error: function (a, b, err) {
alert('Error: ' + err.responseText);
}
})
};
reader.onerror = function (e) {
alert(e.target.error);
}
var arrayBuffer = reader.readAsArrayBuffer(files[0]);
}
makeDroppable(element, callback);
})
</script>
<div class="droppable">
<p>Drag files here or click to upload</p>
</div>
更新
您可以尝试调试页面中的任何JS错误。