我正在尝试使用C#从sharepoint文档库下载文档。
现在在openBinaryDirect()方法上获得异常“在写入开始后无法设置此属性”。
“System.dll中发生了'System.InvalidOperationException'类型的未处理异常
附加信息:写入开始后无法设置此属性。“
请帮我解决这个问题。是否有任何其他方法从sharepoint(csom)下载文档。
ClientContext ctx;
ctx = new ClientContext("url");
string pass = "pass";
SecureString secureString = new SecureString();
foreach (char c in pass.ToCharArray())
{
secureString.AppendChar(c);
}
ctx.Credentials = new SharePointOnlineCredentials(".onmicrosoft.com",secureString);
FileCollection files = ctx.Web.GetFolderByServerRelativeUrl("Salary document Demo").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();
var filePath = @"c:\downloads" + file.Name;
using (var fileStream = new System.IO.FileStream(filePath, System.IO.FileMode.Create))
{
fileInfo.Stream.CopyTo(fileStream);
}
}
通过安装新的Nuget包解决了这个问题:
Microsoft.Sharepoint.2013.Client.16
https://www.nuget.org/packages/Microsoft.Sharepoint.2013.Client.16/