我正在從列表中的特定文件夾下載文件。一切正常。然后我老板讓我下載后刪除文件。這是我嘗試過的。 SecureString str = new SecureString(); string cnf = Util.Cipher(ConfigurationManager.AppSettings["cnf"].ToString()); foreach (char ch in cnf.ToCharArray()) { str.AppendChar(ch); } string user = ConfigurationManager.AppSettings["user"].ToString(); SharePointOnlineCredentials credentials = new SharePointOnlineCredentials(user, str); string siteUrl = ConfigurationManager.AppSettings["site_url"].ToString(); using (ClientContext ctx = new ClientContext(siteUrl)) { ctx.Credentials = credentials; string library = ConfigurationManager.AppSettings["sharepoint_library"].ToString(); List mylibrary = ctx.Web.Lists.GetByTitle(library); FileCollection files = mylibrary.RootFolder.Folders.GetByUrl(sharepointFolder).Files; ctx.Load(files); ctx.ExecuteQuery(); foreach (Microsoft.SharePoint.Client.File file in files) { FileInformation fileinfo = Microsoft.SharePoint.Client.File.OpenBinaryDirect(ctx, file.ServerRelativeUrl); ctx.ExecuteQuery(); using (FileStream filestream = new FileStream(dir + "\\" + file.Name, FileMode.Create)) { fileinfo.Stream.CopyTo(filestream); } file.DeleteObject(); ctx.ExecuteQuery(); } }這是我收到的錯誤。該集合已被修改。枚舉操作可能無法執行。PS 一切正常，直到我添加這行代碼。file.DeleteObject();
2 回答
湖上湖
TA貢獻2003條經驗 獲得超2個贊
只需修改代碼片段如下：
using Microsoft.SharePoint.Client;
using System.IO;
using System.Linq;
using System.Security;
namespace CSOM
{
class Program
{
static void Main(string[] args)
{
using (ClientContext ctx = new ClientContext("https://tenant.sharepoint.com/sites/dev"))
{
string password = "*****";
string account = "[email protected]";
var secret = new SecureString();
foreach (char c in password)
{
secret.AppendChar(c);
}
ctx.Credentials = new SharePointOnlineCredentials(account, secret);
List mylibrary = ctx.Web.Lists.GetByTitle("Documents");
FileCollection files = mylibrary.RootFolder.Folders.GetByUrl("/sites/dev/shared documents/folder1").Files;
ctx.Load(files);
ctx.ExecuteQuery();
foreach (Microsoft.SharePoint.Client.File file in files)
{
FileInformation fileinfo = Microsoft.SharePoint.Client.File.OpenBinaryDirect(ctx, file.ServerRelativeUrl);
ctx.ExecuteQuery();
using (FileStream filestream = new FileStream("D:" + "\\" + file.Name, FileMode.Create))
{
fileinfo.Stream.CopyTo(filestream);
}
}
files.ToList().ForEach(file => file.DeleteObject());
ctx.ExecuteQuery();
};
}
}
}
添加最后兩行以在下載后從文件夾中刪除文件，我已經測試過并且它在我這邊工作。
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