我没有更多的想法。我想为Sharepoint List创建一个新元素,并将文件添加为附件。我可以用ListItem
创建一个新元素。但该文件不会上传。
我尝试使用SaveBinaryDirect()
函数和AttachmentCreationInformation()
类。
如果我尝试我得到这个例外
抛出异常:' System.Net.WebException'在System.dll(400)
中
我还连接到SharePoint Server并查看了Windows日志,但我什么也没找到。
在我的代码中,我使用ListItem
添加了一个新的lLibrary.AddItem(itemCreateInfo)
。使用ListItem
我在SharePoint中创建一个新元素。此元素位于SharePoint文件夹中。这一切都运作良好。
我尝试了很多,但没有任何效果。我需要帮助!
这是我的完整代码:
public bool UploadToSharepoint(string sURL, string sLibrary, string sFolderName, string sTitel, string sDescription, string sFilePath)
{
using (ClientContext clientContext = new ClientContext(sURL))
{
if (!SetCredentialsInClientContext(clientContext))
{
return false;
}
List lLibrary = clientContext.Web.Lists.GetByTitle(sLibrary);
clientContext.Load(clientContext.Web.Lists);
clientContext.Load(lLibrary, l => l.RootFolder.ServerRelativeUrl);
clientContext.ExecuteQuery();
ListItemCreationInformation itemCreateInfo = new ListItemCreationInformation();
if (!string.IsNullOrEmpty(sFolderName))
{
itemCreateInfo.FolderUrl = lLibrary.RootFolder.ServerRelativeUrl + "/" + sFolderName;
}
ListItem newItem = lLibrary.AddItem(itemCreateInfo);
#region Work only with Document list in SharePoint
//using (FileStream fs = new FileStream(sFilePath, FileMode.Open))
//{
// clientContext.Load(lLibrary.RootFolder);
// clientContext.ExecuteQuery();
// string fileUrl = string.Format("{0}/{1}", lLibrary.RootFolder.ServerRelativeUrl, fi.Name);
// Microsoft.SharePoint.Client.File.SaveBinaryDirect(clientContext, fileUrl, fs, true);
//} // Ende using 'FileStream'
#endregion
using (FileStream fs = new FileStream(sFilePath, FileMode.Open))
{
#region WORK!
newItem["Title"] = sTitel;
newItem["Description"] = sDescription;
newItem.Update();
clientContext.ExecuteQuery();
#endregion
#region SaveBinaryDirect Example NOT WORK
//using (FileStream strm = new FileInfo(sFilePath).Open(FileMode.Open))
//{
// Uri url = new Uri(sURL);
// //Microsoft.SharePoint.Client.File.SaveBinaryDirect(clientContext, url.AbsolutePath + "/Attachments/" + newItem.Id + "/" + fi.Name, strm, true);
// Microsoft.SharePoint.Client.File.SaveBinaryDirect(clientContext, lLibrary.RootFolder.ServerRelativeUrl + "/Attachments/" + newItem.Id + "/" + fi.Name, strm, true);
//}
////Microsoft.SharePoint.Client.File.SaveBinaryDirect(clientContext, "", fs, true);
//string serverRelativeUrl = lLibrary.RootFolder.ServerRelativeUrl;
//Microsoft.SharePoint.Client.File.SaveBinaryDirect(clientContext, serverRelativeUrl, fs, true);
#endregion
#region AttachmentCreationInformation Example NOT WORK
AttachmentCreationInformation attInfo = new AttachmentCreationInformation();
attInfo.FileName = fs.Name;
attInfo.ContentStream = fs;
newItem.AttachmentFiles.Add(attInfo);
newItem.Update();
clientContext.ExecuteQuery();
#endregion
}
}
return true;
}
编辑:!
我犯了一个大错。 Sharepoint是2010年。
所以AttachmentFiles.Add()
功能无效。
我发现我必须添加服务引用并更改我的代码。 更多信息可在SharePoint 2010 - Client Object Model - Add attachment to ListItem
找到但现在我得到了Exception 500.这就是我尝试连接到Test SharePoint的原因。在那里,我可以使用消息The list does not exist.
The selected page contains a list that does not exist. The list could have been deleted by another user.
我不知道我必须为找到列表的函数listName
指定什么AddAttachment()
属性。
我的新代码:
public bool UploadToSharepoint(string sURL, string sLibrary, string sFolderName, string sTitel, string sDescription, string sFilePath)
{
using (ClientContext clientContext = new ClientContext(sURL))
{
if (!SetzeCredentialsInClientContext(clientContext))
{
return false;
}
List lLibrary = clientContext.Web.Lists.GetByTitle(sLibrary);
clientContext.Load(lLibrary);
clientContext.Load(lLibrary.RootFolder);
clientContext.ExecuteQuery();
ListItemCreationInformation listItemCreationInformation = new ListItemCreationInformation();
if (!string.IsNullOrEmpty(sFolderName))
{
listItemCreationInformation.FolderUrl = lLibrary.RootFolder.ServerRelativeUrl + "/" + sFolderName;
}
var newItem = lLibrary.AddItem(listItemCreationInformation);
newItem["Title"] = sTitel;
newItem.Update();
clientContext.ExecuteQuery();
clientContext.Load(newItem);
clientContext.ExecuteQuery();
TestSP.ListsSoapClient lsc = new TestSP.ListsSoapClient();
if (_cbAutorisierung.Checked)
{
lsc.ClientCredentials.Windows.ClientCredential = new NetworkCredential(tbName.Text, tbPasswort.Text, tbDomain.Text);
}
else
{
lsc.ClientCredentials.Windows.ClientCredential = CredentialCache.DefaultNetworkCredentials;
}
lsc.AddAttachment(sLibrary, newItem["ID"].ToString(), Path.GetFileName(sFilePath), System.IO.File.ReadAllBytes(sFilePath));
}
return true;
}
答案 0 :(得分:0)
请尝试以下代码。修改了文件夹URL的形成方式。还修改了一些与附件上传相关的代码。
在sUrl
中,请传递您网站集的完整网址。
var list = web.Lists.GetByTitle(sLibrary);
clientContext.Load(list);
clientContext.ExecuteQuery();
ListItemCreationInformation listItemCreationInformation = null;
if (!string.IsNullOrEmpty(sFolderName))
{
listItemCreationInformation = new ListItemCreationInformation();
listItemCreationInformation.FolderUrl = string.Format("{0}Lists/{1}/{2}", sURL, sLibrary, sFolderName);
}
var listItem = list.AddItem(listItemCreationInformation);
newItem["Title"] = sTitel;
newItem["Description"] = sDescription;
listItem.Update();
clientContext.ExecuteQuery();
using (FileStream fs = new FileStream(sFilePath, FileMode.Open))
{
var attInfo = new AttachmentCreationInformation();
attInfo.FileName = fs.Name;
attInfo.ContentStream = fs;
var att = listItem.AttachmentFiles.Add(attInfo);
clientContext.Load(att);
clientContext.ExecuteQuery();
}