Хорошо. Я расширил свою пользовательскую веб-часть (с помощью dynatree) в этом списке, используя http://www.plupload.com/ и создав страницу для сохранения вложений.
public partial class ImportMultipleFilesAsListItems : LayoutsPageBase
{
protected void Page_Load(object sender, EventArgs e)
{
//request form parameters comes from plupload
int parentFolderKey = int.Parse(Request.Form["key"]);
var file = Request.Files[0];
SPList list = SPContext.Current.Web.GetList(Request.Form["listUrl"]);
SPListItem folderItem = list.GetItemById(parentFolderKey);
if (folderItem != null)
{
string parentFolder = null;
if (folderItem.Folder != null)
{
parentFolder = folderItem.Folder.Url;
}
else
{
int slashIndx = folderItem.Url.LastIndexOf('/');
parentFolder = folderItem.Url.Substring(0, slashIndx);
}
SPListItem childFile = list.AddItem(parentFolder, SPFileSystemObjectType.File);
childFile["Title"] = file.FileName;
childFile["IsFolder"] = 0;
childFile["DocParentId"] = parentFolderKey;
childFile.UpdateOverwriteVersion();
byte[] data = new byte[file.ContentLength];
file.InputStream.Read(data, 0, file.ContentLength);
childFile.Attachments.AddNow(file.FileName, data);
}
}
}
$(function () {
var listInfo = new Object();
listInfo.key = null;
listInfo.listUrl = ctx.listUrlDir;
listInfo.__REQUESTDIGEST = $('#__REQUESTDIGEST').val();
$("#uploader").pluploadQueue({
// General settings
runtimes: 'browserplus,html5,html4',
url: $('#uploadMultipleFilesUrl').val(),
max_file_size: '50mb',
chunk_size: '1mb',
multipart_params: listInfo,
rename: true
});
// Client side form validation
$('form').submit(function (e) {
var uploader = $('#uploader').pluploadQueue();
// Files in queue upload them first
if (uploader.files.length > 0) {
// When all files are uploaded submit form
uploader.bind('StateChanged', function () {
if (uploader.files.length === (uploader.total.uploaded + uploader.total.failed)) {
$('form')[0].submit();
}
});
uploader.start();
} else {
alert('You must queue at least one file.');
}
return false;
});
$("#uploader").hide();
});