Hi Greg,
We've used a technique called Chunking to move large quantities of binary data around. We move ~50 Mb files (LAN only) this way and works pretty well. http://msdn.microsoft.com/en-us/library/aa717050.aspx Rob From: ozdotnet-boun...@ozdotnet.com [mailto:ozdotnet-boun...@ozdotnet.com] On Behalf Of Greg Keogh Sent: Tuesday, 6 August 2013 6:01 PM To: ozDotNet Subject: Lots of data over a service Folks, I have to send several thousand database entities of different types to both a Silverlight 5 and WPF app for display in a grid. I can't "page" the data because it's all got to be loaded to allow a snappy response to filtering it. I'm fishing for ways of getting the data across with the least suffering and complexity ... don't forget that Silverlight is involved. Does a WCF service with http binding allow streaming? That would be the ideal technique if it comes out of the box and isn't too complex. I ran an experiment to convert ~6000 entities into XML and the size is a hefty 6MB (no surprise!), however Ionic.Zlib deflates it down to a 500KB buffer which transmits acceptably fast. I'm unhappy with my code to round trip the entities-to-XML as it's a bit messy and has special case logic to skip association properties. Then I thought of Json, which I haven't need to use before. Would the Jason libraries make round-tripping easier? Are the built-in Framework classes good enough, or would I need to use something like NewtonSoft? Can I control which properties are processed? Any general ideas would be welcome. Greg K
