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[英]SharePoint 2010 client object model, clear content type collection
[英]Sharepoint 2010 client object model with camlQuery - file download but no content / 0 byte
我正在尝试从文档库中某个文件夹的子文件夹中下载一个 txt 文件。
我正在使用 camlQuery 来实现这一点。 不幸的是,我没有得到 txt 文件的内容。 它有 0 字节。
public void SaveFolderFiles(string fileName, string libraryName, ClientOM.ClientContext clientContext)
{
ClientOM.List sharedDocumentsList = clientContext.Web.Lists.GetByTitle(libraryName);
ClientOM.CamlQuery camlQuery = new ClientOM.CamlQuery();
camlQuery.FolderServerRelativeUrl = "/Site/Folder/Folder2010/";
camlQuery.ViewXml =
@"<View>
<Query>
<Where>
<Eq>
<FieldRef Name='FileLeafRef'/>
<Value Type='Text'>" + fileName + @"</Value>
</Eq>
</Where>
<RowLimit>1</RowLimit>
</Query>
</View>";
ClientOM.ListItemCollection listItems = sharedDocumentsList.GetItems(camlQuery);
clientContext.Load(sharedDocumentsList);
clientContext.Load(listItems);
clientContext.ExecuteQuery();
if (listItems.Count == 1)
{
ClientOM.ListItem item = listItems[0];
Console.WriteLine("FileLeafRef: {0}", item["FileLeafRef"]);
Console.WriteLine("FileDirRef: {0}", item["FileDirRef"]);
Console.WriteLine("FileRef: {0}", item["FileRef"]);
Console.WriteLine("File Type: {0}", item["File_x0020_Type"]);
ClientOM.FileInformation fileInformation = ClientOM.File.OpenBinaryDirect(clientContext, (string)item["FileRef"]);
using (MemoryStream memoryStream = new MemoryStream())
{
fileInformation.Stream.CopyTo(memoryStream);
using (FileStream fileStream = File.Create(@"D:\" + item["FileLeafRef"].ToString()))
{
memoryStream.CopyTo(fileStream);
}
memoryStream.Flush();
}
}
else
{
Console.WriteLine("Document not found.");
}
}
也许有人有想法?
问候
试试这个:
使用FileInformation
并获取 MemoryStream
string fileurl = (string)liitem["FileRef"];
FileInformation ffl = Microsoft.SharePoint.Client.File.OpenBinaryDirect(clientContext, fileurl);
byte[] bytesarr = ReadFully(ffl.Stream);
MemoryStream mnm = new MemoryStream(bytesarr);
ReadFully function 将Stream
转换为Bytes array
public byte[] ReadFully(Stream input)
{
byte[] buffer = new byte[16 * 1024];
using (MemoryStream ms = new MemoryStream())
{
int read;
while ((read = input.Read(buffer, 0, buffer.Length)) > 0)
{
ms.Write(buffer, 0, read);
}
return ms.ToArray();
}
}
直接导出到 output 文件...我认为这是最简单的方法。
FileInformation fInfo = File.OpenBinaryDirect(currentSiteContext, ServerRelativeURL);
System.IO.FileStream outPutFile = System.IO.File.OpenWrite(string.Concat(OutputPath, "\\", DocumentName));
fInfo.Stream.CopyTo(outPutFile);
fInfo.Stream.Close();
outPutFile.Close();
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