ReportViewer ITemporaryStorage implementation for Web Forms

Question

User1618900539 posted

Hi!

I have a question about the implementation of a custom temporary storage type for Report using Web Forms:

If I have a simple class like the following,

   Public Class ReportsTemporaryStorage
      Implements ITemporaryStorage

      Public Function CreateTemporaryStream() As System.IO.Stream Implements Microsoft.Reporting.WebForms.ITemporaryStorage.CreateTemporaryStream
            Dim ms As New IO.MemoryStream
            Return ms
      End Function

   End Class

Does anybody know how the ReportViewer disposes the Stream after it ended using it?

Because using MemProfiler I found that the MemoryStreams are left undisposed, thus I'm wondering if it's doing it correctly...

 

Cheers,

 
 

Answer 1

User806833803 posted

Try using BufferedStream if you are concerned about disposing memory.

 

 public Stream CreateTemporaryStream()
        {
            string fullPath = Path.GetTempFileName();      
            Stream sm = File.Create(fullPath);
            BufferedStream stream = new BufferedStream(sm);
            return stream;
        }