如何使用CSOM从SharePoint 2013下载文件/向SharePoint 2013上传文件？
问题描述：
我正在开发Win8（WinRT，C＃，XAML）客户端应用程序（CSOM），该应用程序需要从SharePoint 2013下载文件或将文件上传到SharePoint 2013。
I am developing a Win8 (WinRT, C#, XAML) client application (CSOM) that needs to download/upload files from/to SharePoint 2013.
如何做我要下载/上传吗？
How do I do the Download/Upload?
答
上传文件
using (var clientContext = new ClientContext(url))
{
using (var fs = new FileStream(fileName, FileMode.Open))
{
var fi = new FileInfo(fileName);
var list = clientContext.Web.Lists.GetByTitle(listTitle);
clientContext.Load(list.RootFolder);
clientContext.ExecuteQuery();
var fileUrl = String.Format("{0}/{1}", list.RootFolder.ServerRelativeUrl, fi.Name);
Microsoft.SharePoint.Client.File.SaveBinaryDirect(clientContext, fileUrl, fs, true);
}
}
下载文件
using (var clientContext = new ClientContext(url))
{
var list = clientContext.Web.Lists.GetByTitle(listTitle);
var listItem = list.GetItemById(listItemId);
clientContext.Load(list);
clientContext.Load(listItem, i => i.File);
clientContext.ExecuteQuery();
var fileRef = listItem.File.ServerRelativeUrl;
var fileInfo = Microsoft.SharePoint.Client.File.OpenBinaryDirect(clientContext, fileRef);
var fileName = Path.Combine(filePath,(string)listItem.File.Name);
using (var fileStream = System.IO.File.Create(fileName))
{
fileInfo.Stream.CopyTo(fileStream);
}
}