I have a problem with saving and loading a diagram to  and from stream.
I use this code:
saving the diagram          
     string SaveDiagram = _EditReference + ".dgr";
     stream = new MemoryStream();
     DiagramView1.Diagram.SaveToStream(stream);
     imageBytes = stream.GetBuffer();
     stream.Seek(0, SeekOrigin.Begin);
     CloudBlockBlob blob3 = BlobContainer.GetBlockBlobReference(SaveDiagram);
     blob3.UploadFromStream(stream);
     stream.Close();

loading the diagram
     CloudBlockBlob blob = BlobContainer.GetBlockBlobReference(SavedDiagram);
     blob.FetchAttributes();
     MemoryStream m = new MemoryStream();
     blob.DownloadToStream(m);
     DiagramView1.Diagram.LoadFromStream(m);
results in: load_diagram exeption: Unsupported file format

When I first download the blob to a file and then loadFromFile it works well.
Is loadFromStream not supported for memorystreams ?

Thanks Stoyan,

It helped.
I always get great help from you.

Thanks again.
Hans