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Resmi Satish
NA
110
75.3k
Download file using WCF
Jun 26 2014 8:11 AM
Hi
I have to create wcf service for download file. I have
refer :
http://www.codeproject.com/Articles/166763/WCF-Streaming-Upload-Download-Files-Over-HTTP
However I am getting error for
[MessageBodyMember(Order = 1)]
public System.IO.Stream FileByteStream;
When I am including this and consuming my service using a website, I am getting the error The underlying connection was closed: The connection was closed unexpectedly.
My IService.cs
[MessageContract]
public class RemoteFileInfo
{
[MessageHeader(MustUnderstand = true)]
public string FileName;
[MessageHeader(MustUnderstand = true)]
public long Length;
[MessageBodyMember(Order = 1)]
public System.IO.Stream FileByteStream;
public void Dispose()
{
if (FileByteStream != null)
{
FileByteStream.Close();
FileByteStream = null;
}
}
}
My service.cs has
public RemoteFileInfo DownloadFile(DownloadRequest request)
{
RemoteFileInfo result = new RemoteFileInfo();
string filePath = System.IO.Path.Combine(@"D:\DownLoad", request.FileName);
System.IO.FileInfo fileInfo = new System.IO.FileInfo(filePath);
// check if exists
if (!fileInfo.Exists)
throw new System.IO.FileNotFoundException("File not found",
request.FileName);
////// open stream
System.IO.FileStream stream = new System.IO.FileStream(filePath,
System.IO.FileMode.Open, System.IO.FileAccess.Read);
////// return result
result.FileName = request.FileName;
result.Length = fileInfo.Length;
result.FileByteStream = stream;
return result;
}
//Website page
CarService.IService clientDownload = new CarService.ServiceClient();
CarService.DownloadRequest requestData = new CarService.DownloadRequest();
CarService.RemoteFileInfo fileInfo=new CarService.RemoteFileInfo();
requestData.FileName = "Test.txt";
fileInfo = clientDownload.DownloadFile(requestData);
I have add all the configuration values as per the link I have referred.
Can we use "System.IO.Stream" as [MessageBodyMember(Order = 1)]?
Please help me to resolve the issue.
Reply
Answers (
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